SANnet II 200 FC, SATA, and SATA SE
Array Installation, Operation, and
Service Manual
March 2005
83-00003261, Revision C
Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii
Product and Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–1
1.1.2
Differences Between SANnet II 200 FC Arrays and SANnet II 200
SATA Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–4
Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–8
Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–9
FC Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–12
Data Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–13
Scalability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–13
iii
Fibre Channel Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–14
Site Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–1
Customer Obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–2
Electrical and Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–3
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–4
Layout Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–4
Console and Other Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–5
Preinstallation Worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–6
Opening Your Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–1
Checking the Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–2
Customer-Provided Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–3
Connecting Your Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–1
RAID Array Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–4
iv SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Cabling to Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–11
4.11 Manually Setting a Static IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–27
4.13 Scaling a SANnet II 200 Fibre Channel Array Into a High-Capacity
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–29
4.15 Connecting Ports to Hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–31
4.16 Power-On Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–32
Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–1
Summary of Array Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–1
Larger Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–14
Checking LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–1
Front-Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–2
Contents
v
Maintaining Your Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–1
Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–4
7.2.1 Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–4
Viewing Event Logs on the Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–5
Upgrading Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–7
Troubleshooting Your Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–1
Sensor Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–1
Silencing Audible Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–5
RAID LUNs Not Visible to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–7
Controller Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–7
vi SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Recovering From Fatal Drive Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–8
Using the Reset Push Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–10
Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–11
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–13
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1
Agency Approvals and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–4
B.5
Using SANnet II Family Software Monitoring and Management Tools with
JBOD Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–3
B.10 Resizing LUNs Greater Than 1 Tbyte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–12
B.12 Converting a JBOD to a RAID array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–16
Failed Component Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–1
Cable Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
RJ-45 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
DB9 COM Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2
E.1 Setting Up the Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
Contents vii
. . . . . . . . . . . . . . . . E–2
Configuring a Microsoft Windows Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–1
Setting Up the Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–1
G. Configuring a Linux Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G–1
Setting Up the Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G–1
Making an ext3 File System for Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G–5
Creating a File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G–6
Setting Up a Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H–1
Creating a Volume Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H–5
Creating a Logical Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H–6
Creating a File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H–6
Mounting the New File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H–7
I.
Configuring an HP Server Running the
HP-UX Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–1
Setting Up a Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–1
viii SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Attaching the Disk Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–4
Logical Volume Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–4
Definitions of Common Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–5
Creating a Physical Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–5
Creating a Volume Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–6
Creating an HP-UX File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–8
Mounting the File System Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–8
Mounting the File System Automatically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I–8
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index–1
Contents ix
x
SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Figures
FIGURE 1-1
FIGURE 4-1
FIGURE 4-2
SANnet II 200 FC, SATA, and SATA SE Array Front View . . . . . . . . . . . . . . . . . 1–2
Front Bezel and Front Bezel Locks of an Array . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Sequence of Steps to Change Front Bezel Locks So Keys Cannot Be
Removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3
FIGURE 4-3
FIGURE 4-4
FIGURE 4-5
Hardware Connections on the Back of a Dual-Controller SANnet II 200
FC Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5
Hardware Connections on the Back of a Dual-Controller SANnet II 200
SATA Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6
Hardware Connections on the Back of a Dual-Controller SANnet II 200 SATA
SE Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7
FIGURE 4-6
FIGURE 4-7
FIGURE 4-8
FIGURE 4-9
Installing a Cord Lock
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–9
. . . 4–12
SANnet II 200 FC Array Attached to Two Hosts and Two Expansion Units
SANnet II 200 SATA Array Attached to Two Hosts and Two Expansion Units . 4–13
Front Bezel and Front Bezel Locks of an Array . . . . . . . . . . . . . . . . . . . . . . . . . 4–14
FIGURE 4-10 ID Switch Located on the Left Front Side of Arrays and Expansion Units . . . . . 4–14
FIGURE 4-11 Front Panel of the SANnet II 200 FC, SATA, and SATA SE Array With LEDs
Displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–16
FIGURE 4-12 Dedicated Drive Channels 2 on the Upper Controller and 3 on the Lower
Controller in a Dual-Controller SANnet II 200 FC Array . . . . . . . . . . . . . . . . . . . 4–18
FIGURE 4-13 Dedicated Drive Channels 2 and 3 (on Both Controllers) in a Dual-Controller
SANnet II 200 SATA Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–19
FIGURE 4-14 Host Channels on a Dual-Controller SANnet II 200 FC Array . . . . . . . . . . . . . . 4–20
FIGURE 4-15 Host Channels on a Dual-Controller SANnet II 200 SATA Array . . . . . . . . . . . . 4–21
FIGURE 4-16 Host Channels on a Dual-Controller SATA SE Array . . . . . . . . . . . . . . . . . . . . . 4–21
FIGURE 4-17 Default Dual-Controller SANnet II 200 FC Array SFP Placement . . . . . . . . . . . 4–22
FIGURE 4-18 Default Dual-Controller SANnet II 200 SATA Array SFP Placement . . . . . . . . . 4–22
FIGURE 4-19 SANnet II 200 FC Array Default Single Controller SFP Placement . . . . . . . . . . 4–23
xi
FIGURE 4-20 SANnet II 200 SATA Array Default Single-Controller SFP Placement . . . . . . . .4–23
FIGURE 4-21 SANnet II 200 FC JBOD/Expansion Unit Default SFP Placement . . . . . . . . . . .4–24
FIGURE 4-22 SANnet II 200 SATA Expansion Unit Default SFP Placement . . . . . . . . . . . . . .4–24
FIGURE 4-23 Typical SFP Connector Used to Connect Cables to Chassis SFP Ports . . . . . .4–25
FIGURE 5-1
FIGURE 5-2
FIGURE 5-3
FIGURE 5-4
A Point-to-Point Configuration with a Dual-Controller SANnet II 200 FC Array
and Two Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–7
A Point-to-Point Configuration With a Dual-Controller SANnet II 200 SATA Array
and Two Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–8
A DAS Configuration With Four Servers, a Dual-Controller SANnet II 200 FC
Array, and Two Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–11
A DAS Configuration With Four Servers, a Dual-Controller SANnet II 200 SATA
Array, and Two Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–12
FIGURE 6-1
FIGURE 6-2
FIGURE 6-3
FIGURE 6-4
FIGURE 6-5
FIGURE 6-6
FIGURE 6-7
FIGURE 6-8
FIGURE 6-9
FIGURE 8-1
FIGURE 8-2
FIGURE 8-3
FIGURE 8-4
FIGURE 8-5
FIGURE 8-6
FIGURE 8-7
FIGURE 8-8
FIGURE 8-9
Front-Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–2
Chassis Ear LEDs and Reset Button on Front Panel . . . . . . . . . . . . . . . . . . . . . .6–2
SANnet II 200 FC Array I/O Controller Module and Battery Module LEDs . . . . . .6–5
SANnet II 200 SATA Array I/O Controller Module and Battery Module LEDs . . .6–6
SANnet II 200 SATA SE Array RAID Controller I/O and Battery Module LEDs . .6–6
I/O Expansion Module for a SANnet II 200 FC Expansion Unit . . . . . . . . . . . . . .6–8
I/O Expansion Module for a SANnet II 200 SATA Expansion Unit . . . . . . . . . . . .6–8
AC Power Supply and Fan Module
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–10
DC Power Supply and Fan Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–10
Cooling Fan Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–2
Power Supply or Fan Module Flowchart, 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . .8–12
Power Supply or Fan Module Flowchart, 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . .8–13
Drive LEDs Flowchart, 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–15
Drive LEDs Flowchart, 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–16
Front-Panel LEDs Flowchart, 1 of 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–17
Front-Panel LEDs Flowchart, 2 of 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–18
Front-Panel LEDs Flowchart, 3 of 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–19
Front-Panel LEDs Flowchart, 4 of 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–20
FIGURE 8-10 I/O Controller Module Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–21
FIGURE B-1
FIGURE B-2
ID Switch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–5
SANnet II 200 FC JBOD Array Attached to a Single HBA Port . . . . . . . . . . . . . B–7
xii SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
FIGURE B-3
FIGURE B-4
FIGURE B-5
FIGURE D-1
FIGURE D-2
FIGURE E-1
FIGURE E-2
FIGURE H-1
FIGURE H-2
FIGURE I-1
SANnet II 200 FC JBOD Array Attached to Two HBA Ports . . . . . . . . . . . . . . . .B–8
JBOD or Expansion Unit Troubleshooting Flowchart, 1 of 2 . . . . . . . . . . . . . . .B–15
JBOD or Expansion Unit Troubleshooting Flowchart, 2 of 2 . . . . . . . . . . . . . . .B–16
Ethernet RJ-45 Socket 10/100BASE-T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–1
RS-232 DB9 (EIA/TIA 574) View of the Male End . . . . . . . . . . . . . . . . . . . . . . . .D–2
RAID Array COM Port Connected Locally to the Serial Port of a Workstation . . .E–2
Worldwide Name Information Displayed by the luxadmcommand. . . . . . . . . . .E–3
RAID Array COM Port Connected Locally to the Serial Port of a Host System . .H–3
Network Address Corresponding to WWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H–8
RAID Array COM Port Connected Locally to the Serial Port of a Host System . . I–3
Figures xiii
xiv SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Tables
TABLE 1-1
TABLE 1-2
TABLE 2-1
TABLE 2-2
TABLE 2-3
TABLE 2-4
TABLE 2-5
TABLE 3-1
TABLE 4-1
TABLE 4-2
TABLE 4-3
TABLE 4-4
TABLE 4-5
TABLE 4-6
TABLE 5-1
Comparison of SANnet II 200 FC, SATA, and SATA SE Array Features . . . . . . . . 1–5
SANnet II 200 FC, SATA, and SATA SE Array Configuration Options . . . . . . . . . . 1–7
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Site Preparation Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Host and Fabric Switch Connectivity Summarized . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Contents of SANnet II 200 Array Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
DC Cable Wiring for Cable 35-00000148 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–10
DC Cable Wiring for Cable 35-00000156 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–10
ID Switch Settings for Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–15
Sample Array and Expansion Units With Different Loop IDs and Drive IDs . . . . . 4–15
Number of Ports in SANnet II 200 FC, SATA, and SATA SE Arrays . . . . . . . . . . 4–17
Number of Host Ports and Supported Host Port Speeds . . . . . . . . . . . . . . . . . . . 4–19
Example Point-to-Point Configuration With Two Logical Drives in a Dual-Controller
Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–9
TABLE 5-2
TABLE 5-3
Connection for Four Servers in a DAS Configuration . . . . . . . . . . . . . . . . . . . . . . 5–10
Example Primary and Secondary ID Numbers in a Loop Configuration With Two
IDs per Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–13
TABLE 6-1
TABLE 6-2
TABLE 6-3
TABLE 6-4
TABLE 6-5
Front-Panel LED Status When Array Is First Powered On . . . . . . . . . . . . . . . . . . . 6–1
Front-Panel LEDs
Drive LED Status
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–4
I/O Controller Module and Battery Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 6–7
I/O Expansion Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–9
xv
TABLE 6-6
TABLE 7-1
TABLE 8-1
TABLE 8-2
TABLE 8-3
TABLE 8-4
TABLE 8-5
TABLE 8-6
TABLE A-1
TABLE A-2
TABLE A-3
Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–9
Battery Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–4
Cooling Element Sensors for FC, SATA, and SATA SE Arrays . . . . . . . . . . . . . . .8–2
Temperature Sensors for FC, SATA, and SATA SE Arrays . . . . . . . . . . . . . . . . . .8–3
Voltage Sensors for FC Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–4
Voltage Sensors for SATA and SATA SE Arrays . . . . . . . . . . . . . . . . . . . . . . . . . .8–4
Power Supply Sensors for FC, SATA, and SATA SE Arrays . . . . . . . . . . . . . . . . .8–5
Silencing Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–7
SANnet II 200 FC, SATA, and SATA SE Array Physical Specifications . . . . . . . . A–1
SANnet II 200 FC, SATA, and SATA SE Array Highlights . . . . . . . . . . . . . . . . . . A–2
SANnet II 200 FC, SATA, and SATA SE Array Product Safety & Electromagnetic
Standards A–4
TABLE B-1
TABLE B-2
TABLE B-3
Supported Sun Servers and Connection Methods (JBOD Arrays) . . . . . . . . . . . . B–2
ID Switch Settings for SANnet II 200 FC JBOD Arrays . . . . . . . . . . . . . . . . . . . . . B–5
Example of 12 Drives Shown on a 12-Disk SANnet II 200 FC JBOD Array
Connected to a Host Over a Single FC Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–7
TABLE B-4
Example of 24 Drives Shown on a 12-Disk SANnet II 200 FC JBOD Array
Connected to a Host Over Two FC Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–9
TABLE C-1 Failed Component Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–1
TABLE D-1 Ethernet RJ-45 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
TABLE D-2 Pin Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2
xvi SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Preface
This manual provides instructions for installing, initially configuring, and operating the
SANnet II 200 Fibre Channel (FC), SANnet II 200 SATA, and the SANnet II 200
SATA Special Edition (SE) arrays; hereafter referred to as FC, SATA, and SATA SE
arrays for ease of reading.
This guide is written for experienced system administrators who are familiar with Dot
Hill hardware and software products.
Caution – Read the SANnet II Family Safety, Regulatory, and Compliance Manual
before beginning any procedure in this manual.
How This Book Is Organized
This book covers the following topics:
Chapter 1 provides an overview of the array’s features.
Chapter 2 covers site planning and basic safety requirements.
Chapter 3 provides general procedures for unpacking and inspecting the array.
Chapter 4 provides procedures for connecting your array to power and to the network.
Chapter 5 provides an overview of the array configuration.
Chapter 6 describes the array’s front and back-panel LEDs.
Chapter 7 describes maintenance procedures.
Chapter 8 describes troubleshooting procedures.
Appendix B provides information about standalone JBOD arrays.
Appendix C provides information about failed component alarm codes.
Appendix D provides pinout identification for each connector.
Preface xvii
Appendix E provides instructions on configuring a Sun™ server.
Appendix F provides instructions on configuring a Windows 2000 or Windows 2000
Advanced server.
Appendix G provides instructions on configuring a Linux server.
Appendix H provides instructions on configuring a IBM AIX server.
Appendix I provides instructions on configuring an HP-UX server.
Typographic Conventions
1
Typeface
Meaning
Examples
AaBbCc123
The names of commands, files, Edit your.loginfile.
and directories; on-screen
computer output
Use ls-ato list all files.
% You have mail.
text
Computer menu
Click Start.
AaBbCc123
Book titles, new words or
Read Chapter 6 in the User’s Guide.
terms, words to be emphasized. These are called class options.
Replace command-line
variables with real names or
values.
You must be a superuser to do this.
To delete a file, type rmfilename.
1. The settings on your browser might differ from these settings.
Related Documentation
Title
Part Number
SANnet II 200 FC, SATA, and SATA SE Array Release Notes
SANnet II 200 FC and SATA Array Best Practices Manual
SANnet II Family RAID Firmware 4.1x User’s Guide
SANnet II Family FRU Installation Guide
83-00003262
83-00003263
83-00003435
83-00002708
83-00002365
83-00002666
SANnet II Family Rack Installation Guide for 2U Arrays
SANnet II Family Safety, Regulatory, and Compliance Manual
xviii SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Technical Support
For late-breaking Release Notes and all manuals for this product, go to the SANnet II
SCSI array section, or the SANnet II 200 FC array section, depending on which array
you have, at:
The following information may be required when contacting Technical Support: Dot
Hill serial number and part number of hardware; version of Dot Hill supplied software;
host computer platform and operating system version; description of the problem and
any related error messages.
Supply the following information to facilitate our tracking system and improve our
response time: customer name, company name; state and country; telephone number
with area code; Internet mail address; maintenance contract number, if applicable.
Placing a Support Call
After obtaining the above information, a support call may be placed by Internet mail,
fax, or telephone.
Phone: 1-877-DOT7X24 (877-368-7924)
Corporate Headquarters Contacts
United States (California) Corporate Headquarters
Tel: 1-760-931-5500 or 1-800-872-2783
Fax: 1-760-931-5527
E-mail: [email protected]
Netherlands: European Headquarters
Dot Hill Systems Corp., B.V. (Netherlands)
Tel: 31 (0) 53 428 4980; Fax: 31 (0) 53 428 0562
E-mail: [email protected]
Japan: Japanese Headquarters
Nihon Dot Hill Systems Corp., Ltd.
Tel: 81-3-3251-1690; Fax: 81-3-3251-1691
E-mail: [email protected]
For additional sales offices in the U.K., China, Sweden, Germany, France, Israel, and
Singapore, see our web site:
Preface xix
Dot Hill Welcomes Your Comments
Dot Hill is interested in improving its documentation and welcomes your comments
and suggestions. You can email your comments to:
Include the part number (83-00003261) of your document in the subject line of your
email.
xx SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
CHAPTER
1
Product and Architecture Overview
This manual describes the SANnet II 200 FC, SATA, and SATA Special Edition (SE)
arrays.
The FC, SATA, and SATA SE arrays are rack-mountable, Network Equipment Building
System (NEBS) Level 3-compliant, Fibre Channel mass storage subsystems. NEBS
Level 3 is the highest level of NEBS criteria used to assure maximum operability of
networking equipment in mission-critical environments such as telecommunications
central offices.
SANnet II 200 FC Array. The SANnet II 200 FC array is a Fibre Channel (FC) array
designed for high availability, high performance, and high capacity.
SANnet II 200 SATA and SATA SE Array. The SANnet II 200 SATA and SATA SE
arrays are designed for high availability, and employs Serial ATA (SATA) technology
for high-density storage, with a Fibre Channel front end. This provides high capacity
with a small footprint, making this array ideal for content management archiving
applications.
This chapter provides a brief overview of the FC, SATA, and SATA SE arrays. Topics
covered in this chapter are:
■
■
■
■
■
■
Note – Unless otherwise indicated, all features and procedures apply to the FC, SATA,
and SATA SE arrays.
1-1
1.1
Comparison of FC, SATA, and SATA SE Arrays
Figure 1-1 SANnet II 200 FC, SATA, and SATA SE Array Front View
The SANnet II 200 FC array is a next-generation Fibre Channel storage system
designed to provide direct attached storage (DAS) to entry-level, mid-range, and
enterprise servers, or to serve as the disk storage within a storage area network (SAN).
This solution features powerful performance and reliability, availability, and
serviceability (RAS) features using modern FC technology. As a result, the SANnet II
200 FC array is ideal for performance-sensitive applications and for environments with
many entry-level, mid-range, and enterprise servers, such as:
■
■
■
■
■
Internet
Messaging
Database
Technical
Imaging
The SANnet II 200 SATA and SATA SE arrays are best suited for inexpensive
secondary storage applications that are not mission-critical where higher-capacity
drives are needed, and where lower performance and less than 7/24 availability is an
option. These include near-line applications such as:
■
■
■
■
■
■
Information lifecycle management
Content addressable storage
Backup and restore
Secondary SAN storage
Near-line DAS storage
Static reference data storage
It is possible, though not always desirable, to combine both FC expansion units and
SATA expansion units connected to a SANnet II 200 FC RAID array. For instance, you
might want to use two SANnet II 200 SATA expansion units for near-line backup and
archival storage while the Fibre Channel drives in your RAID array and other
expansion units are used for real-time, mission-critical information processing and
input/output (I/O) operations.
For an example of such a configuration, refer to the SANnet II 200 FC and SATA Array
Best Practices Manual.
1-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
1.1.1
Fibre Channel and SATA Array Architectures
The FC, SATA, and SATA SE share many architectural elements. This section
discusses those elements, making note of the few ways in which the architecture is
implemented differently in the two arrays.
The SANnet II 200 FC array, SATA array, and SATA SE array RAID controllers have
six FC channels. RAID controller channels 0, 1, 4, and 5 are normally designated for
connection to hosts or Fibre Channel switches. RAID controller channels 2 and 3 are
dedicated drive channels that connect to disks. Each channel has a single port
connection, except the SANnet II 200 SATA array, which has two extra ports (two
connections for channels 0 and 1).
In a dual RAID controller configuration, the architecture of the loops within the
chassis provides both RAID controllers the same host channel designators. Each host
channel of the top RAID controller shares a loop with the matching host channel on
the bottom RAID controller. For example, channel 0 of the top RAID controller shares
the same loop as channel 0 of the bottom RAID controller. This provides four distinct
loops for connectivity. The individual loops provide logical unit number (LUN)
failover without causing host bus adapter (HBA) path failover in the event of a
controller failure.
In a single RAID controller configuration, the lower I/O board has drive channels but
does not have host channels. Overall, the same number of loops are available, but with
only half as many host channel ports. All six fibre channels in a SANnet II 200 FC
array’s I/O controller module support 1-Gbit or 2-Gbit data transfer speeds.
1.1.1.1
SANnet II 200 FC Array Features
On the SANnet II 200 FC array, RAID controller channels 0, 1, 4, and 5 are normally
designated host channels. Any host channel can be configured as a drive channel. In a
dual-controller configuration, each host loop includes two ports per loop, one port on
the top controller and one port on the bottom controller.
SANnet II 200 FC RAID controller channels 2 and 3 are dedicated drive channels that
connect to expansion units. Each I/O board has two ports designated as disk drive
loops. These ports connect to the internal dual-ported FC disk drives and are used to
add expansion units to the configuration.
The two drive loop ports on the upper I/O board form FC loop 2 (channel 2) while the
two drive ports on the lower I/O board form FC loop 3 (channel 3). FC loop 2 provides
a data path from both RAID controllers to the A loop of the internal disk drives, while
FC loop 3 provides a data path from both RAID controllers to the B loop of the
internal disk drives.
Chapter 1 Product and Architecture Overview 1-3
1.1.1.2
SANnet II 200 SATA and SATA SE Array Features
On the SANnet II 200 SATA and SATA SE arrays, RAID controller channels 0 and 1
are dedicated host channels. Channels 4 and 5 are host channels by default but can be
configured as drive channels. RAID controller channels 2 and 3 are dedicated drive
channels that connect to expansion units.
Unlike the SANnet II 200 FC array, on the SANnet II 200 SATA RAID controller host
channels 0 and 1 include four ports per loop (two ports on the upper controller, and
two ports on the lower controller). Channels 0 and 1 support 1-Gbit or 2-Gbit data
transfer rates.
SANnet II 200 SATA RAID controller channels 4 and 5 provide two ports per loop
(one port on each controller). Channels 4 and 5 support only a 2-Gbit data transfer rate.
Each SANnet II 200 SATA RAID controller has two ports designated as disk drive
loops. The drive ports support only a 2-Gbit data transfer rate. These ports connect to
the internal SATA disk drives using internal FC-SATA routing technology. These drive
ports are also used to add expansion units to the configuration.
Like the host channels, each drive channel of the top RAID controller shares a loop
with the matching drive channel on the bottom RAID controller. For example, drive
channel 2 of the top RAID controller shares the same loop as channel 2 of the bottom
RAID controller.
1.1.2
Differences Between SANnet II 200 FC Arrays and
SANnet II 200 SATA Arrays
SANnet II 200 FC arrays use Fibre Channel (FC) disk drives and are supported by Dot
Hill in primary online applications as well as secondary and near-line applications.
SANnet II 200 SATA arrays use serial ATA (SATA) disk drives and are supported by
Dot Hill in either near-line applications such as backup and restore, or in secondary
applications, such as static storage. SANnet II 200 SATA arrays can be used in
multipath and multi-host configurations. They are not designed to be used in primary
online applications.
SANnet II 200 SATA expansion units can be connected to SANnet II 200 FC arrays,
either alone or in combination with SANnet II 200 FC expansion units. Up to five
expansion units can be used in this configuration.
Before installing and configuring your array, review the key differences between the
1-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Note – Although the products are very similar in appearance and setup, the
configurations have very important differences. While the FC array can be used for all
applications, the SATA and SATA SE arrays cannot. Inappropriate use of the SATA
arrays in applications for which the FC array was designed might result in loss of data
and/or loss of data access.
Table 1-1 Comparison of SANnet II 200 FC, SATA, and SATA SE Array Features
SANnet II 200 FC Array SANnet II 200 SATA Array
Best suited for Best suited for inexpensive
SANnet II 200 SATA SE Array
Applications
Best suited for inexpensive
production applications secondary storage applications secondary storage applications
where the superior
features of FC technical where higher capacity drives
characteristics and
performance are
that are not mission critical
that are not mission critical
where higher capacity drives
are needed, and where lower
performance and less than
are needed, and where lower
performance and less than
required. This includes
7/24 availability is an option. 7/24 availability is an option.
online applications such This includes near-line
This includes near-line
applications such as:
• Information lifecycle
management
as:
applications such as:
• Information lifecycle
management
• Database
• Decision support
• Data warehousing
• Content addressable storage • Content addressable storage
• Electronic commerce • Backup and restore
• Backup and restore
• Enterprise resource
planning
• Secondary SAN storage
• Near-line DAS storage
• Secondary SAN storage
• Near-line DAS storage
• Messaging, file, and
print
• Static reference data storage • Static reference data storage
Disks
Fibre Channel disks:
36, 73, or 146 GB at
10K RPM
SATA disks:
250 GB at 7200 RPM
400 GB at 7200 RPM
SATA disks:
250 GB at 7200 RPM
400 GB at 7200 RPM
36 or 73 GB at 15K
RPM
Maximum FC
Host Ports
per I/O
Controller
Module
4
6
6
(one SFP port each for
channels 0, 1, 4, and 5) channels 1 and 0; one SFP
(two SFP ports each for
(two SFP ports each for
channels 1 and 0; one SFP
port each for channels 4 and
5)
port each for channels 4 and
5)
Maximum
Number of
Expansion
Units
15
15
0
Connected to
a RAID
Array
Chapter 1 Product and Architecture Overview 1-5
Table 1-1 Comparison of SANnet II 200 FC, SATA, and SATA SE Array Features (Continued)
SANnet II 200 FC Array SANnet II 200 SATA Array
SANnet II 200 SATA SE Array
Maximum
Number of
Disks per
192 (1 RAID array +
15 expansion units)
192 (1 RAID array + 15
expansion units)
12 (1 RAID array)
Configuration
Maximum
Number of
Logical
32 logical drives
32 logical drives
Not supported
32 logical drives
Not supported
Drives
Direct host-
attached
JBOD
One JBOD per server
Support
Caution – In FC and SATA configurations with large drive capacities, the size of the
logical drive might exceed the device capacity limitation of your operating system. Be
sure to check the device capacity limitation of your operating system before creating
the logical drive. If the logical drive size exceeds the capacity limitation, you must
partition the logical drive.
Note – For information about the maximum usable storage capacity for the
SANnet II 200 FC, SATA, and SATA SE arrays, refer to the SANnet II 200 FC and
SATA Array Best Practices Manual.
1.1.3
SANnet II 200 FC, SATA, and SATA SE Array
Configurations
The FC, SATA, and SATA SE arrays can be used in the following configurations:
■
■
■
Single-controller configuration. A RAID array can be configured with a single
controller in a non-redundant configuration.
A RAID array with two controllers. A RAID array can be configured with two
controllers to provide full redundancy.
An expansion unit. An expansion unit consists of a chassis with disk drives and I/O
expansion modules. The expansion unit does not include an I/O controller module.
The expansion unit connects to and is managed by a RAID array. The SANnet II
200 SATA Special Edition (SE) does not support expansion units.
■
A Just a Bunch of Disks (JBOD) array. The JBOD array connects to, and is
managed by, a host server. Only the SANnet II 200 FC JBOD is supported.
1-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
arrays.
Table 1-2 SANnet II 200 FC, SATA, and SATA SE Array Configuration Options
Internal RAID controllers
1 or 2
2-Gbit/sec Fibre Channel disks Up to 12 per array or per expansion unit, with a
1
(SANnet II 200 FC array)
1.5-Gbit/sec serial ATA disks
(SANnet II 200 SATA array)
minimum of 4 plus 1 spare
2
FC expansion units
Up to 8 for a SANnet II 200 FC array. Up to 5 for a
SANnet II 200 SATA array
3
FC JBOD arrays (SANnet II
1
200 FC array only)
Connection options
• Serial port
• Ethernet
• Fibre Channel Small Form-Factor Pluggable
(SFP)
Supported RAID levels
0, 1, 3, 5, 1+0, 3+0, and 5+0
Redundant field-replaceable
units (FRUs)
• Power supply and fan modules
• I/O controller modules and I/O expansion
modules
• I/O expansion modules
• Battery board module
• Disk drive modules
Configuration management
and enclosure event reporting
options
• In-band Fibre Channel ports
• Out-of-band 10/100BASE-T Ethernet port
• RS-232 connectivity
4
• Enclosure monitoring by SCSI Enclosure Services
(SES)
1. 1-GHz drives are not supported.
2. A disk array with no controller. Each expansion unit has two Fibre Channel loops that can provide redundant data paths
back to the RAID array.
3. A disk array with no controller that is connected directly to a host computer, with no RAID array in the loop. Only SANnet
II 200 FC arrays support the JBOD configuration.
4. The host-based SANscape software provides a graphical user interface (GUI) and additional event-reporting capabilities.
A label on the bottom lip of an array chassis, underneath the front bezel, indicates
whether the array is a JBOD array or a RAID array. For instance, “SANnet II 200 AC
JBOD” refers to an alternating-current version of a SANnet II 200 JBOD array,
“SANnet II 200 DC JBOD” refers to a direct-current version of a JBOD array, and
“SANnet II 200 AC RAID” refers to an alternating-current version of a RAID array.
Similarly, using a OBP command such as probe-scsi-allprovides similar
information, using an “A” designator for RAID arrays and a “D” designator for disks
Chapter 1 Product and Architecture Overview 1-7
in a JBOD array. For example, “SANnet II 200 D1000” identifies a JBOD array with
SES firmware version 1000 and “SANnet II 200F A1000” identifies a SANnet II 200
FC RAID array with firmware version 1000.
For a list of supported racks and cabinets, refer to the SANnet II Family Rack
Installation Guide for 2U Arrays.
Reliability, availability, and serviceability (RAS) are supported by:
■
■
■
Redundant components
Notification of failed components
Components that are replaceable while the unit is online
For information about specifications and agency approvals, see “SANnet II 200 FC,
1.2
Field-Replaceable Units
This section describes the field replaceable units (FRUs) contained in the SANnet II
200 FC, SATA, and SATA SE arrays.
1.2.1
RAID I/O Controller Modules
A dual-controller configuration offers increased reliability and availability because it
eliminates a single point of failure, the controller. In a dual-controller configuration, if
the primary controller fails, the array automatically fails over to the second controller
without an interruption of data flow.
The FC, SATA, and SATA SE array I/O controller modules are hot-serviceable. Hot-
serviceable means that the module can be replaced while the array and hosts are
powered on, but the connected hosts must be inactive.
■
SANnet II 200 FC array RAID controller modules provide six Fibre Channel ports.
■
SANnet II 200 SATA array I/O controller modules provide eight Fibre Channel
ports.
■
SANnet II 200 SATA SE array I/O controller modules provide six Fibre Channel
ports.
Single- and dual-controller models are available, with the dual-controller version
supporting active/passive and active/active configurations. Each RAID controller is
configured with 1 Gbyte of cache.
In the unlikely event of an I/O controller module failure, the redundant RAID
controller immediately begins servicing all I/O requests. The failure does not affect
application programs.
Each RAID I/O controller module can support up to 1 Gbyte of Synchronous Dynamic
Random Access Memory (SDRAM) with Error Control Check (ECC) memory. In
addition, each controller supports 64 Mbyte of on-board memory. Two Application-
1-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Specific Integrated Circuit (ASIC) controller chips handle the interconnection between
the controller bus, DRAM memory, and Peripheral Component Interconnect (PCI)
internal buses. They also handle the interface between the on-board 2-Mbyte flash
memory, 32-Kbyte nonvolatile random access memory (NVRAM), RS-232 port chip,
and 10/100 BASE-T Ethernet chip.
The RAID I/O controller module is a multifunction board. I/O controller modules
include Small Form-Factor Pluggable (SFP) ports, SCSI Enclosure Services (SES)
logic, and the RAID controller. The SES logic monitors various temperature
thresholds, fan speed from each fan, voltage status from each power supply, and the
FRU ID.
Each RAID I/O controller module incorporates SES direct-attached Fibre Channel
capability to monitor and maintain enclosure environmental information. The SES
controller chip monitors all internal +12 and +5 voltages, various temperature sensors
located throughout the chassis, and each fan. The SES also controls the front-panel and
back-panel LEDs and the audible alarm. Both the RAID chassis and the expansion
chassis support dual SES failover capabilities for fully redundant event monitoring.
1.2.2
I/O Expansion Modules
The hot-serviceable I/O expansion modules provide four (SANnet II 200 FC array) or
eight (SANnet II 200 SATA array), or six (SANnet II 200 SATA SE array) SFP ports
but do not have battery modules or controllers. I/O expansion modules are used with
I/O controller modules in non-redundant FC arrays, SATA arrays, and SATA SE arrays
and in expansion units and JBODs.
You can connect SANnet II 200 SATA expansion units to SANnet II 200 FC arrays.
However, certain restrictions and limitations apply to mixed Fibre Channel and SATA
environments.
1.2.3
Disk Drives
Each disk drive is mounted in its own sled assembly. Each sled assembly has
electromagnetic interference (EMI) shielding, an insertion and locking mechanism, and
a compression spring for maximum shock and vibration protection.
Each disk drive is slot independent, meaning that once a logical drive has been
initialized, the system can be shut down and the drives can be removed and replaced in
any order. In addition, disk drives are field upgradeable to larger drives without
interruption of service to user applications. The drive firmware is also field
upgradeable, but the firmware upgrade procedure requires interruption of service.
Chapter 1 Product and Architecture Overview 1-9
Caution – You can mix disk drive capacity in the same chassis, but not spindle speed
(RPM). For instance, you can use 36-Gbyte and 73-Gbyte drives with no performance
problems if both are 10K RPM drives. Violating this configuration guideline leads to
poor performance.
In the event of a single disk drive failure, with the exception of RAID 0, the system
continues to service all I/O requests. Either mirrored data or parity data is used to
rebuild data from the failed drive to a spare drive, assuming one is assigned. If a spare
is not assigned, you must manually rebuild the array.
In the unlikely event that multiple drive failures occur within the same logical drive,
data that has not been replicated or backed up might be lost. This is an inherent
limitation of all RAID subsystems and could affect application programs.
An air management sled FRU is available for use when you remove a disk drive and
do not replace it. Insert an air management sled into the empty slot to maintain
optimum airflow through the chassis.
1.2.3.1
1.2.3.2
SANnet II 200 FC Array Disk Drives
The drives can be ordered in 36-Gbyte, 73-Gbyte, and 146-Gbyte sizes. 36-Gbyte
drives have a rotation speed of 15,000 RPM, 146-Gbyte drives have a rotation speed of
10,000 RPM, and 73-Gbyte drives are available with rotation speeds of 10,000 RPM
and 15,000 RPM.
SANnet II 200 SATA and SATA SE Array Disk Drives
The disk drives incorporate Serial ATA (SATA) technology. They are optimized for
capacity, but have performance levels approaching Fibre Channel performance levels.
The drives can be ordered in 250-Gbyte and 400-Gbyte sizes and have a rotation speed
of 7200 RPM.
1.2.4
Battery Module
The battery module is designed to provide power to system cache for 72 hours in the
event of a power failure. When power is reapplied, the cache is purged to disk. The
battery module is hot-swappable. Hot-swappable means that a live upgrade can be
performed. The FRU can be removed and replaced while the RAID array is powered
on and operational. The battery module is mounted on the I/O board with guide rails
and a transition board. It also contains the EIA-232 and DB9 serial interface (COM)
ports.
1-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
1.2.5
Power and Fan Modules
Note – The SATA arrays can only be ordered in an AC configuration. However, DC
power supplies can be ordered in an x-option kit, and the SATA arrays can be
reconfigured using the DC power supplies. For details, refer to the SANnet II Family
FRU Installation Guide.
Each array contains two redundant power and fan modules. Each module contains a
420-watt power supply and two radial 52-cubic-feet-per-minute (CFM) fans. Power
module autoranging capabilities range from 90 volts alternating current (VAC) to 264
VAC for AC power supplies, and from –36 volts direct current (VDC) to –72 VDC for
DC power supplies.
A single power and fan module can sustain an array.
1.3
1.4
Interoperability
The array is designed for heterogeneous operation and supports multiple host operating
systems. Refer to the SANnet II 200 FC, SATA, and SATA SE Array Release Notes to
see the current list of supported hosts, operating systems, and application software.
The array does not require any host-based software for configuration, management,
and monitoring, which can be handled through the built-in firmware application. The
console window can be accessed via the DB9 communications (COM) port using the
Solaris tipcommand or equivalent means for other operating systems, or with the
Ethernet port using the telnetcommand. Management and monitoring software is
for more information.
Fibre Channel Technology Overview
As a device protocol capable of high data transfer rates, Fibre Channel simplifies data
bus sharing and supports not only greater speed than SCSI, but also more devices on
the same bus. Fibre Channel can be used over both copper wire and optical cable. It
can be used for concurrent communications among multiple workstations, servers,
storage systems, and other peripherals using SCSI and IP protocols. When a Fibre
Channel hub or fabric switch is employed, it provides flexible topologies for
interconnections.
Chapter 1 Product and Architecture Overview 1-11
1.4.1
FC Protocols
Two common protocols are used to connect Fibre Channel (FC) nodes together:
■
Point-to-point—The point-to-point protocol is straightforward, doing little more
than establishing a permanent communication link between two ports.
■
Arbitrated loop—The arbitrated loop protocol creates a simple network featuring
distributed (arbitrated) management between two or more ports, using a circular
(loop) data path. Arbitrated loops can support more nodes than point-to-point
connections can.
The FC, SATA, and SATA SE arrays support point-to-point and arbitrated loop
protocols. Select the protocol you prefer by setting the desired Fibre Channel
Connection Option in the Configuration parameters of the firmware application. For
1.4.2
1.4.3
FC Topologies
The presence or lack of switches establishes the topology of an FC environment. In a
direct attached storage (DAS) topology, servers connect directly to arrays without
switches. In a storage area network (SAN) topology, servers and arrays connect to an
FC network created and managed by switches.
Refer to the SANnet II 200 FC and SATA Array Best Practices Manual to see
information about optimal configurations for site requirements.
Fibre Hubs and Switches
A storage network built on a Fibre Channel architecture might employ several of the
following components: Fibre Channel host adapters, hubs, fabric switches, and fibre-
to-SCSI bridges.
■
Fibre hubs
An arbitrated loop hub is a wiring concentrator. “Arbitrated” means that all nodes
communicating over this fibre loop share a 100-megabits-per-second (Mbps)
segment. Whenever more devices are added to a single segment, the bandwidth
available to each node is further reduced.
A loop configuration allows different devices in the loop to be configured in a token
ring style. With a fibre hub, a fibre loop can be rearranged in a star-like
configuration because the hub itself contains port bypass circuitry that forms an
internal loop inside. Bypass circuits can automatically reconfigure the loop once a
device is removed or added without disrupting the physical connection to other
devices.
■
Fabric switches.
1-12 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
A fabric switch functions as a routing engine, which actively directs data transfers
from source to destination and arbitrates every connection. Bandwidth per node via
a fabric switch remains constant when more nodes are added, and a node on a
switch port uses a data path with speed up to 100 Mbps to send or receive data.
1.4.4
Data Availability
Data availability is one of the major requirements for today’s mission-critical
applications. Highest availability can be accomplished with the following
functionality:
■
Hot-plug capabilities
With proper hardware and software configuration in dual-controller mode, a failed
controller can be replaced online while the existing controller is actively serving
I/O.
■
Dual-loop configurations
Dual loop provides path redundancy and greater throughput.
Controller communications over Fibre Channel
■
■
This option is selectable either through dedicated loops or all drive loops. It allows
a more flexible configuration of redundant controllers.
1.4.5
Scalability
The Fibre Channel architecture brings scalability and easier upgrades to storage.
Storage expansion can be as easy as cascading another expansion unit to a configured
RAID array without powering down the running system. The maximum number of
expansion units supported by a single SANnet II 200 Fibre Channel or SATA array is:
■
■
■
Up to eight SANnet II 200 FC expansion units connected to a SANnet II 200 FC
array.
Up to five SANnet II 200 SATA expansion units connected to a SANnet II 200
SATA array.
Up to five SANnet II 200 FC expansion units and SANnet II 200 SATA expansion
units, in any combination, can be connected to a SANnet II 200 FC RAID array.
Note – The SANnet II 200 SATA SE array does not support expansion units.
Up to 125 devices can be configured in a single FC loop. By default, the array
provides two drive loops and four host loops, and operates in Fibre Channel-Arbitrated
Loop (FC-AL) and fabric topologies.
Chapter 1 Product and Architecture Overview 1-13
1.5
Fibre Channel Architecture
Each RAID array has six Fibre Channels with the following defaults:
■
Channels 0, 1, 4, and 5 are host channels connected to servers. Any SANnet II 200
FC array host channels can be reassigned as drive channels to connect to expansion
units. SANnet II 200 SATA array channels 3 and 4 can also be reassigned as drive
channels.
■
Channels 2 and 3 are dedicated drive channels that connect the internal 12-disk
drives in the RAID chassis, and can also be used to add expansion units to the
configuration.
Note – SANnet II 200 SATA SE devices do not support expansion units. Use the
SANnet II 200 SATA device if your array requires expansion units.
■
FC-AL is the default mode. Point-to-point is also available.
The SANnet II 200 FC expansion unit has a total of four FC-AL ports. The SANnet II
200 SATA expansion unit has a total of eight FC-AL ports. The SANnet II 200 SATA
SE has a total of six FC-AL ports.
Note – Throughout this manual, Fibre Channel-Arbitrated Loops are referred to
simply as loops.
1.5.1
Redundant Configuration Considerations
This section provides information about setting up redundant configurations for
increased reliability. For more detailed information about configuration requirements,
refer to the SANnet II 200 FC and SATA Array Best Practices Manual.
1.5.1.1
Host Bus Adapters
Fibre Channel is widely applied to storage configurations with topologies that aim to
avoid loss of data due to component failure. As a rule, the connections between source
and target should be configured in redundant pairs.
The recommended host-side connection consists of two or more host bus adapters
(HBAs). Each HBA is used to configure a Fibre Channel loop between the host
computer and the array.
1-14 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
1.5.1.2
Active-to-Active Redundant Controller
In active-to-active redundant controller mode, the primary loop serves the I/O traffic
directed to the primary controller, and its pair loop serves the I/O traffic to the
secondary controller. The host-side management software directs I/O traffic to the pair
loop if one of the redundant loops fails.
Since each fibre interface supports only a single loop ID, two HBAs are necessary for
active-to-active redundant controller operation. Using two HBAs in each server
ensures continued operation even when one data path fails.
In active-to-active mode, the connection to each host adapter should be considered a
data path connecting the host to either the primary or the secondary controller. One
adapter should be configured to serve the primary controller and the other adapter to
serve the secondary controller. Each target ID on the host channels should be assigned
either a primary ID or a secondary ID. If one controller fails, the remaining controller
can inherit the ID from its counterpart and activate the standby channel to serve host
I/O.
1.5.1.3
Host Redundant Paths
The controller passively supports redundant fibre loops on the host side, provided that
the host has implemented software support for this feature.
In the unlikely event of controller failure, the standby channels on the remaining
controller become an I/O route serving the host I/O originally directed to the failed
channel on its pair of controllers. Application failover software should be running on
the host computer to control the transfer of I/O from one HBA to another in case either
data path fails.
1.6
Additional Software Tools
The following additional software tools are available:
■
■
■
SANscape, a management and monitoring program
SANscape Alert, a monitoring utility
SANscape CLI, a command-line utility to monitor and manage the array.
Refer to the SANscape Software Installation Guide for information about installing
these tools.
For additional information, refer to the release notes in the SANnet II 200 array
Chapter 1 Product and Architecture Overview 1-15
1-16 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
CHAPTER
2
Site Planning
This chapter outlines the site planning requirements and basic safety requirements for
the installation and use of the FC arrays, SATA arrays, and SATA Special Edition (SE)
arrays. Complete a preinstallation worksheet and prepare the site for installation
according to the worksheet details and the specified site planning requirements.
Review the details of this chapter before installing an array. Topics covered in this
chapter are:
■
■
■
■
■
■
■
■
Note – The SANnet II 200 FC, SATA, and SATA SE Array Release Notes list the
supported operating systems, host platforms, and software.
2.1
Customer Obligations
The customer is obliged to inform Dot Hill, Inc. of any and all ordinances and
regulations that would affect installation.
Caution – When selecting an installation site for the FC, SATA, or the SATA SE
arrays, choose a location that avoids excessive heat, direct sunlight, dust, or chemical
exposure. Such exposure greatly reduces the product’s longevity and might void your
warranty.
2-1
The customer is responsible for meeting all government codes and regulations
concerning facilities. The customer is also responsible for compliance with the
following requirements:
■
Meeting all local, national, and international codes covered in Appendix A. The
subjects covered include fire and safety, building, and electrical codes.
■
2.2
Safety Precautions
For your protection, observe the following safety precautions when setting up your
equipment:
■
Follow all safety precautions and requirements specified in the SANnet II Family
Safety, Regulatory, and Compliance Manual.
■
A fully loaded array weighs over 59 pounds (27 kilograms). To avoid injury, use
two people to lift the array.
■
■
Follow all cautions and instructions marked on the equipment.
Ensure that the voltage and frequency of your power source match the voltage and
frequency inscribed on the equipment’s electrical rating label.
■
■
Never push objects of any kind through openings in the equipment. Dangerous
voltages might be present. Conductive foreign objects could produce a short circuit
that could cause fire, electric shock, or damage to your equipment.
Dot Hill products are designed to work with single-phase power systems having a
grounded neutral conductor. To reduce the risk of electric shock, do not plug Dot
Hill products into any other type of power system. Contact your facilities manager
or a qualified electrician if you are not sure what type of power is supplied to your
building.
■
■
Your Dot Hill product is shipped with a grounding-type (three-wire) power cord. To
reduce the risk of electric shock, always plug the cord into a grounded power outlet.
Do not use household extension cords with your Dot Hill product. Not all power
cords have the same current ratings. Household extension cords do not have
overload protection and are not meant for use with computer systems.
■
Do not block or cover the openings of your Dot Hill product. Never place a Dot Hill
product near a radiator or heat register. Failure to follow these guidelines can cause
overheating and affect the reliability of your Dot Hill product.
2-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2.3
Environmental Requirements
Table 2-1 Environmental Specifications
Operating
Nonoperating
Altitude
To 9000 feet (3000 meters)
To 36,000 feet (12,000 meters)
Humidity
10% to 90% RH at 80° F
(27° C) max wet bulb
(noncondensing)
93% RH, 100° F (38° C) max wet
bulb temperature (noncondensing)
Temperature
Standalone
Rack
41° F (5° C) to 104° F (40° C)
41° F (5° C) to 95° F (35° C)
–40° F (–40° C) to +149° F (+65° C)
–40° F (–40° C) to +149° F (+65° C)
2.3.1
Electromagnetic Compatibility
The following is required for all installations:
■
All AC mains and supply conductors to power distribution boxes for both the rack-
mounted array and the desktop array must be enclosed in a metal conduit or
raceway when specified by local, national, or other applicable government codes
and regulations.
■
■
The supply conductors and power distribution boxes (or equivalent metal enclosure)
must be grounded at both ends.
The supplied arrays require voltages within minimum fluctuation. The facilities
voltage supplied by the customer must maintain a voltage with not more than (+/–)
5 percent fluctuation. The customer facilities must provide suitable surge protection.
2.4
Electrical and Power Specifications
The FC, SATA, and SATA SE arrays require two independent power sources. Each
array has two power supply and two fan modules for redundancy.
Each AC array requires two 115 VAC/15A or two 240 VAC service outlets. All AC
power supplies are autoranging and are automatically configured to a range of 90–264
VAC and 47–63 Hz. There is no need to make special adjustments.
Each DC array requires two –48 VDC service outlets and has an input voltage range of
–36 VDC to –72 VDC.
Note – To ensure power redundancy, connect the two array power modules to two
separate circuits (for example, one commercial circuit and one UPS).
Chapter 2 Site Planning 2-3
Table 2-2 Power Specifications
AC power
Voltage and frequency 90 to 264 VAC, 47 to 63 Hz
5A max
Input current
Power supply output voltage
DC power
+5 VDC and +12 VDC
–48 VDC (–36 VDC to –72 VDC)
2.5
Physical Specifications
Table 2-3 Physical Specifications
Category
Description
Dimensions
2U 3.45 inches (8.76 cm.) height
21 inches (53.34 cm.) chassis depth
17.5 inches (44.6 cm.) width
19 inches (48.26 cm.) width with ears
Installation
clearances
For FRU component removal and replacement, 15 inches (37
cm) is required front and back.
Cooling clearances
6 inches (15 cm) is required front and back. No cooling
clearance is required on the sides or the top and bottom of the
array.
2.6
Layout Map
It is helpful to create a sketch or layout map to indicate the exact location of the array
as well as the location of the hosts, console, and Ethernet connections that will be
connected to it.
As you lay out the components, consider the cable lengths that will be used.
2.6.1
Rack Placement
Follow these guidelines when preparing a rackmount placement for your system:
■
■
■
■
Ensure that the floor surface is level.
Leave enough space in front of the rack to access components for servicing.
Leave enough space in back of the rack to access components for servicing.
Keep power and interface cables clear of foot traffic. Route cables inside walls,
under the floor, through the ceiling, or in protective channels or raceways.
2-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
■
Route interface cables away from motors and other sources of magnetic or radio
frequency interference.
■
■
Stay within the cable length limitations.
Provide two separate power sources for the array. These power sources must be
independent of each other, and each must be controlled by a separate circuit breaker
at the power distribution point.
2.6.2
Tabletop Placement
SANnet II 200 FC, SATA, and SATA SE arrays can be positioned on a desk or a table.
Follow these guidelines when preparing a tabletop placement for your system:
■
Choose a desk or a table that can support 60 pounds (27 kg) for each fully
configured array you plan to place on it.
■
Do not place the arrays on the edge of the table. Set the array so that at least 50
percent of the array is inside the table or desk leg support area. Failure to do this
might cause the table to tip over.
■
Leave enough space in front and in back of the array to access components for
servicing. To remove the components requires a clearance of 15 inches (37 cm) in
front and in back of the array.
■
■
■
Provide a minimum space of 6 inches (15 cm) in front and in back of the array for
adequate airflow.
Keep power and interface cables clear of foot traffic. Route cables inside walls,
under the floor, through the ceiling, or in protective channels or raceways.
Route interface cables away from motors and other sources of magnetic or radio
frequency interference.
■
■
■
Stay within the cable length limitations.
Ensure that the operating system for the array does not exceed the specifications.
Use two people to lift the array to avoid injury. The array can weigh over 60 pounds
(27 kg).
■
■
Do not place the array in a vertical position. Place the array horizontally.
If you are installing more than one array, you can stack up to five arrays on top of
each other. Do not stack more than five arrays together.
■
Provide two separate power sources for the array. These power sources must be
independent of each other, and each must be controlled by a separate circuit breaker
at the power distribution point.
2.7
Console and Other Requirements
A console with at least one serial port connection is necessary for installation and
configuration of your FC, SATA, or SATA SE array. Once you have configured your
array with an IP address, an Ethernet port can also be useful for configuring the array.
Chapter 2 Site Planning 2-5
Note – SANnet II family arrays require at least CAT-5 Ethernet cable.
See the following preinstallation worksheet for additional preparation details.
2.8
Preinstallation Worksheets
Before ordering an FC, SATA, or SATA SE array, complete the preinstallation
worksheets on the following pages and then prepare the site for installation according
to the site planning requirements.
Note – If you are connecting to several hosts or fabric switches, make as many copies
■
You are responsible for ensuring that the site consistently conforms to all stipulated
standards and that necessary peripherals are made available to the engineer during
installation.
■
■
Review the details of your specific survey before installing your array.
If necessary, attach or sketch a network diagram to the survey.
2-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table 2-4 Site Preparation Worksheet
Rackmounting Customers must ensure that the appropriate service outlets are available for
installation. Requirements vary.
• Will the array be rackmounted? Yes / No
• Is the rack supplied by Dot Hill, Inc.? Yes / No
• If yes, include Dot Hill model number: ____
• If not, make/model: _____________________ /_____________________
• Does the rack mount have:
• Front and back? If so, depth? ______
• Center/Telco? ______
• What cable lengths are required? _________________
• Are there any power strips or power sequencers in the rack? Yes / No
• Are they supplied by Dot Hill, Inc.? Yes / No
•
•
If yes, part number: ___________
If not, quantity of plugs/outlets required: __________ / __________
IP address
Cabling
Array IP address: ______.______.______.______
Array network mask: ______.______.______.______
Fiber-optic cable lengths to connect to hosts: _______________
Chapter 2 Site Planning 2-7
Table 2-5 Host and Fabric Switch Connectivity Summarized
Host or Fabric Switch Connectivity - Host or Fabric Switch #1
Host or fabric switch name: _____________________________________
Host or fabric switch make/model: ________________________________
HBA connector types: _____________________________
Cable distance from the array to the hosts: ___________
Operating system: ________________________________
Patches installed: ________________________________
IP addresses:
• Network ____________________
• Host or switch _______________
Host or Fabric Switch Connectivity - Host or Fabric Switch #2
Host or fabric switch name: _____________________________________
Host or fabric switch make/model: ________________________________
HBA connector types: _____________________________
Cable distance from the array to the hosts: ___________
Operating system: ________________________________
Patches installed: ________________________________
IP addresses:
• Network ____________________
• Host or switch _______________
2-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
CHAPTER
3
Unpacking Your Array
This chapter describes the procedure for unpacking your FC, SATA, or SATA SE array
package. The following topics are covered in this chapter:
■
■
■
■
■
3.1
Opening Your Package
Follow these guidelines for unpacking the equipment.
Caution – To avoid personal injury or damage to the equipment during installation,
always use two people to remove the unit from its container. This unit weighs
approximately 60 pounds (27 kg).
1. Select a suitable area for unpacking.
2. Store all packing material and boxes for possible equipment returns.
3. Check the contents sheet in your product package.
The contents sheet summarizes the standard contents for your product. See “Checking
the Package Contents” on page 3-2 for more information.
4. Compare the packing slip and the list of parts with the items you received.
If the list of parts on your packing slip does not match the items you received, or if any
items appear damaged, immediately notify your carrier agent and the supplier who
prepared your shipment.
5. Carefully examine the cables provided in the package.
If any cable appears to be damaged, contact the technical service department for an
immediate replacement.
3-1
These are required to complete your installation.
Note – You must purchase or provide fiber-optic cables for connecting FC, SATA, and
SATA SE arrays to host servers.
3.2
Checking the Package Contents
Inspect the array package for standard items as well as purchased options before you
begin installation. If any parts are missing or damaged, contact your sales
representative immediately.
3.2.1
Standard Array Packages
Table 3-1 Contents of SANnet II 200 Array Packages
Quantity
Item
1
One or more of the following arrays:
• SANnet II 200 FC array, SANnet II 200 SATA array, or SANnet II 200 SATA SE array
with single controller
• SANnet II 200 FC array, SANnet II 200 SATA array, or SANnet II 200 SATA SE array
with dual controllers
• SANnet II 200 FC JBOD, SANnet II 200 FC expansion unit, or SANnet II 200 SATA
expansion unit
1
• Contents Sheet for your array
• Quick installation guide for your array
• To download and print the latest release notes, go to the SANnet II 200 FC, SATA, or
SATA SE array section and to the software section at the following location:
1
CD for user documentation
1
Serial null modem cable
1 or 2
25-foot (7.5 m) shielded CAT-5 Ethernet cable (one per controller)
Cable adapter, DB9 to DB25
1
2
DC power cables if you ordered a DC-powered array
AC cord locks in a plastic bag if you ordered an AC-powered array
AC cable country kit if the array is AC powered
Front bezel keys in a plastic bag, to secure the front bezel onto the chassis
2
1
2
Various
Purchased options. These options are ordered at the time of purchase and are integrated
into or added to the unit prior to delivery.
3-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
3.3
Field-Replaceable Units
Check that you received all field-replaceable units (FRUs) ordered with your array. For
additional FRUs, consult your sales representative. For instructions on how to install or
replace FRUs, review the following manuals located on the product web site or on
your documentation CD:
■
SANnet II Family Rack Installation Guide for 2U Arrays
SANnet II Family FRU Installation Guide
■
All FRUs are hot-swappable except the I/O controller and I/O expansion modules,
which are hot-serviceable. Hot-swappable means that a live upgrade can be
performed—the FRU can be removed and replaced while the RAID array is powered
on and operational. Hot-serviceable means that the module can be replaced while the
array and hosts are powered on but the connected hosts must be inactive.
Caution – You can mix capacity in the same chassis, but not spindle speed revolutions
per minute (RPM) on the same SCSI bus. For instance, you can use 36-Gbyte and 73-
Gbyte drives with no performance problems if both are 10K RPM drives. Violating this
configuration guideline leads to poor performance.
For a list of the FRU part numbers, refer to the SANnet II Family FRU Installation
Guide.
3.4
3.5
Customer-Provided Cables
Customers must provide a minimum of one fiber-optic cable per host to connect a host
to a RAID array. Two fiber-optic cables are required for a redundant path
configuration.
To obtain qualified cables, consult your Dot Hill sales representative.
Mounting Your Array in a Rack or Cabinet
Refer to SANnet II Family Rack Installation Guide for 2U Arrays for instructions on
how to install and prepare a rack or cabinet for mounting your array.
Chapter 3 Unpacking Your Array 3-3
3-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Before you connect the array to the network, position the array in the rack, cabinet, or
other location where it will be used.
Caution – When positioning the array, do not block the air vents at the front or back
of the unit. Follow all safety precautions specified in the SANnet II Family Safety,
Regulatory, and Compliance Manual.
Caution – When you power off an array, wait five seconds before you power it back
on. If you power the array off and on too quickly, unexpected results can occur. See
4.1
Converting Your Front Bezel Locks So the Keys
Cannot Be Removed
The bezel on your array has two locks whose keys can be removed when the locks are
in either the locked or open position. It is possible to reconfigure the locks so that the
keys cannot be removed.
Bezel locks
Figure 4-1 Front Bezel and Front Bezel Locks of an Array
To change the locks so the keys cannot be removed, perform the following steps.
1. Remove the bezel by gently pivoting the swing arms out of their ear sockets.
instructions on how to remove the bezel.
2. Make sure the key is in the locked position, with the pawl extending horizontally past
the edge of the bezel.
3. Hold the key in place and use a 3/8-inch (12-mm) nut driver to remove the locking nut
Caution – Be sure to hold the key in place. Otherwise there is a risk of breaking the
small tab on the lock that serves as a stop.
4-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
4. Lift the pawl off the threaded part of the lock body, as shown in the second panel of
Figure 4-2 Sequence of Steps to Change Front Bezel Locks So Keys Cannot Be Removed
5. Set the pawl aside, face up, so that you can remember its orientation when you replace
it.
7. Replace the pawl in the same orientation as before, as shown in the fourth panel of
8. Hold the key in place and use the nut driver to refasten the locking nut that holds the
the nut.
Caution – Be sure to hold the key in place. Otherwise there is a risk of breaking the
small tab on the lock that serves as a stop.
Chapter 4 Connecting Your Array 4-3
9. Replace the bezel.
Note – To convert your bezel locks so that the keys can be removed, repeat this
procedure.
4.2
RAID Array Connections
Management is in-band through fibre host connections and out-of-band through the
serial port and Ethernet port on the back of each controller.
4.2.1
SANnet II 200 FC Array Connections
Figure 4-3 identifies the hardware connections on the back of a dual-controller SANnet
II 200 FC array.
4-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Servers and consoles
FC devices
Management
console
FC expansion units/FC arrays
FC device connections
application/data servers and consoles
Figure 4-3 Hardware Connections on the Back of a Dual-Controller SANnet II 200 FC Array
4.2.2
SANnet II 200 SATA Array Connections
Figure 4-4 identifies the hardware connections on the back of a dual-controller SANnet
II 200 SATA array.
Chapter 4 Connecting Your Array 4-5
Servers and consoles
FC devices
Management
console
FC expansion units/FC arrays
FC device connections
application/data servers and consoles
Figure 4-4 Hardware Connections on the Back of a Dual-Controller SANnet II 200
SATA Array
4-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
4.2.3
SANnet II 200 SATA SE Array Connections
Figure 4-5 identifies the hardware connections on the back of a dual-controller SANnet
II 200 SATA SE array.
Servers and consoles
Management
console
FC device connections
application/data servers and consoles
Figure 4-5 Hardware Connections on the Back of a Dual-Controller SANnet II 200 SATA SE Array
4.3
Connecting the Chassis to AC Power Outlets
When you connect the AC power cords, install the two provided cord locks at the same
time. The AC cord locks are used to securely fasten the AC cable connectors.
Caution – If the array is connected to AC power sources not within the designated
90–135 or 180–264 VAC range, the unit might be damaged.
Note – To ensure power redundancy, be sure to connect the two power supply modules
to two separate circuits (for example, one commercial circuit and one UPS).
To connect the AC power cords, perform the following procedure.
Chapter 4 Connecting Your Array 4-7
1. Use a Phillips screwdriver to remove the screw and cylindrical standoff from one of
the two provided cord locks.
Set them aside for reassembly later.
2. Slide the cord lock over the AC power connector.
3. Hold the cylindrical standoff between the two screw holes on the flanges of the cord
lock.
4. Insert the screw into the first screw hole, through the standoff, and then into the
threaded screw hole on the other flange.
5. Tighten the screw with a screwdriver until the flanges bottom out on the cylindrical
standoff.
6. Push the power cord into the power supply receptacle until it is firmly seated.
7. Push the green ejector handle forward until it is seated against the power supply.
8. Turn the thumbscrew of the green ejector handle clockwise until it is finger-tight to
secure the handle and the cord lock.
Note – To ensure that a thumbscrew is finger-tight, tighten it with a screwdriver and
then loosen the thumbscrew counterclockwise a quarter turn.
4-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2
1
3
4
Figure 4-6 Installing a Cord Lock
4.4
Connecting the Chassis to DC Power Outlets
Note – The SANnet II 200 SATA array can only be ordered in an AC configuration.
However, DC power supplies can be ordered in an x-option kit, and a SANnet II 200
SATA array can be reconfigured using the DC power supplies. Refer to the SANnet II
Family FRU Installation Guide for a procedure for removing and replacing power
supplies.
Two DC power cords are packaged with each DC array. To connect the DC power
cords, perform the following procedure.
1. Check the DC cable part number and wire labels carefully before connecting the cable
to the source.
Chapter 4 Connecting Your Array 4-9
Table 4-1 DC Cable Wiring for Cable 35-00000148
Pin Number Voltage
Color
A3
A2
A1
Return
Red
GND (Chassis Ground) Green/Yellow
–48 VDC Black
Table 4-2 DC Cable Wiring for Cable 35-00000156
Pin Number Voltage
Color
A3
A2
A1
L+
Red
GND (Chassis Ground) Green/Yellow
L– White
2. Connect a DC power cable to the first power supply and to a power outlet.
Note – Use only the DC power cables provided with the array.
Caution – If the array is connected to DC power sources not within the designated –
48V DC (–36 VDC to –72 VDC) range, the unit might be damaged.
Note – To ensure power redundancy, be sure to connect the two power supply modules
to two separate circuits (for example, one commercial circuit and one UPS).
Note – To extend the length of the DC power cable as needed, strip the last 1/4 inch
of the cable, insert the stripped end into a provided Panduit tube, and crimp the tube.
3. Tighten the cable-locking screws to attach the cable securely to the power supply
power outlet.
4. Connect the second power cable to the second power supply and to a second power
outlet. Tighten the cable-locking screws.
If one power supply fails, the second power supply automatically takes the full load.
4-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
4.5
Cabling to Expansion Units
The instructions in this section apply to the SANnet II 200 FC and the SANnet II 200
SATA arrays only. The SANnet II 200 SATA SE array does not support expansion
units.
Caution – When connecting expansion units to a RAID array, always connect channel
2 of the RAID array to the A channel of the expansion units, and connect channel 3 of
the RAID array to the B channel of the expansion units. Otherwise, unexpected
behavior might occur.
Several cabling configurations are possible, each with its own advantages and
disadvantages. Refer to the SANnet II 200 FC and SATA Array Best Practices Manual
for more information about the suitability of various configurations for various
application requirements, as well as for information about high-capacity
configurations.
The maximum number of expansion units attached to a RAID array are:
■
up to eight SANnet II 200 FC expansion units attached to a SANnet II 200 FC array
up to five SANnet II 200 SATA expansion units attached to a SANnet II 200 SATA
array
■
■
up to five SANnet II 200 FC expansion units and SANnet II 200 SATA expansion
units, in any combination, attached to a SANnet II 200 FC array
These configurations are described in the SANnet II 200 FC and SATA Array Best
Practices Manual.
expansion units. Connections to expansion units are designed to keep all A drive ports
on the same loop and all B drive ports on the same loop.
Caution – To avoid drive assignment conflicts, make sure that each connected array
In the RAID array, two of the unused SFP host ports can be used to provide redundant
pathing to the two servers, and the remaining unused SFP host ports can be connected
to two more servers in a redundant configuration.
Similarly, you can connect expansion units to other channels (which are separate from
channels 2 and 3) if you configure them as drive channels. For details, refer to the
SANnet II Family RAID Firmware User’s Guide.
Chapter 4 Connecting Your Array 4-11
RAID array
Expansion unit 1
Expansion unit 2
Loop A (top drive ports)
Loop B (bottom drive ports)
Cable to drive
Cable to host
Figure 4-7 SANnet II 200 FC Array Attached to Two Hosts and Two Expansion
Units
4-12 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
H/D/RCC
RAID array
H/D/RCC
Expansion unit 1
Loop A (left-side drive ports)
Expansion unit 2
Loop B (right-side drive ports)
Figure 4-8 SANnet II 200 SATA Array Attached to Two Hosts and Two Expansion Units
4.6
Setting Loop IDs on Expansion Units
When an expansion unit is attached to a RAID array, unique, hard-assigned loop IDs
are assigned to each expansion unit drive. A loop ID is the decimal version of an
arbitrated loop physical address (AL_PA). The lowest number loop ID is the lowest
priority address on the loop.
On the left front side of an expansion unit, an ID switch is used to set the loop IDs for
the disk drives to a different range of values so that the same IDs are not repeated by
RAID units and expansion units on the same loop.
Setting the loop ID on an array or expansion unit requires dropping the front bezel out
of the way and removing the small vertical plastic cap on the left side of the bezel that
covers the left rackmount tab. Rackmount tabs are also referred to as “ears.”
Chapter 4 Connecting Your Array 4-13
Bezel locks
Plastic “ear” cap covering loop ID switch
Figure 4-9 Front Bezel and Front Bezel Locks of an Array
1. Use the provided key to unlock both bezel locks.
2. Grasp the front bezel cover on both sides and pull it forward and then down.
3. Remove the plastic cap from the left ear of the array.
a. Squeeze both sides of the cap at the top and the bottom.
b. Turn the cap toward the center of the array until it disengages and pull it free.
Caution – To avoid damage to the cap, do not pull the cap forward directly or pull
from only its top or bottom.
The ID switch is exposed when you remove the plastic cap.
Press to change the ID number
Figure 4-10 ID Switch Located on the Left Front Side of Arrays and Expansion
Units
4. Press the upper or lower switch button to change the ID number so that each connected
RAID array and expansion unit uses a different loop ID.
Caution – The loop ID should only be changed while the expansion unit is powered
off or not in use. After changing the loop ID, a power cycle is required to make the ID
switch change take effect. Failure to cycle the power following a loop ID change can
lead to unexpected results.
The default ID switch setting for RAID arrays is 0. The default range of available
drive IDs for RAID arrays is 0 to 11 for 12 drives (the IDs 12–15 are ignored). The
default ID switch setting for expansion units and JBODs is 1.
4-14 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Ensure that the loop IDs of expansion units do not duplicate the loop IDs of other
connected expansion units or RAID arrays.
The ID switch offers eight ID ranges. Each range contains 16 IDs (the last four IDs in
each range are ignored). These ranges are shown in Table 4-3.
Table 4-3 ID Switch Settings for Expansion Units
ID Switch Setting
Range of IDs
0–15
0
1
2
3
4
5
6
7
16–31
32–47
48–63
64–79
80–95
96–111
112–125
For an example of properly configured loop IDs, consider the configurations shown in
expansion units have been assigned different loop IDs. Set the loop ID switches so that
the RAID array is assigned loop ID 0, expansion unit 1 has loop ID 1, and expansion
unit 2 has loop ID 2. The range of IDs assigned to the drives is shown in Table 4-4.
Table 4-4 Sample Array and Expansion Units With Different Loop IDs and Drive
IDs
Fibre Channel
Device
Loop ID Switch
Setting
Range of
Drive IDs
RAID array
0
1
2
0–15
Expansion unit 1
Expansion unit 2
16–31
32–47
5. Prepare the plastic left ear cap for replacement by aligning the inside round notches of
the cap with the round cylindrical posts (ball studs) on the ear.
6. Push the top and bottom of the ear cap onto the ear, pressing in on the top side toward
the center of the array first.
7. Continue pushing the top and bottom of the ear cap onto the ear, pressing on the side
toward the outside of the array.
Do not use force when placing a cap on an ear.
Chapter 4 Connecting Your Array 4-15
8. Lift the bezel into position and press it onto the front of the chassis until it is flush with
the front.
9. Use the key to lock both bezel locks.
4.7
Powering Up and Checking LEDs
Perform the initial check of the array according to the following procedure.
1. Connect two AC or DC power cables to the power and fan modules on the back of the
array.
2. Power on the array by turning on each power switch.
JBOD Arrays” on page B-6 for the power-up sequence to use when operating
standalone SANnet II 200 FC JBODs directly attached to hosts.
3. Check for the following LED activity:
All front-panel LEDs turn solid green to indicate good operation.
Disk 3
Disk 4
Disk 5
Disk 6
Disk 7
Disk 8
Disk 9
Disk 0
Disk 1
Disk 2
Disk 10
Disk 11
Figure 4-11 Front Panel of the SANnet II 200 FC, SATA, and SATA SE Array With
LEDs Displayed
4.8
Reviewing Channels, Ports, and SFPs
I/O controller modules have ports that accept small form-factor pluggable (SFP)
transceivers. The SANnet II 200 FC and SATA arrays have ports labeled FC0 through
FC5, to indicate channels 0 through 5. The SANnet II 200 SATA SE array has ports
4-16 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
labeled FC0, FC1, FC4, and FC5 to indicate channels 0, 1, 4, and 5. Default
configurations do not include an SFP connector in every SFP port. To add or change
The channels and associated ports for the SANnet II 200 FC, SATA, and SATA SE
arrays are summarized in Table 4-5.
Table 4-5 Number of Ports in SANnet II 200 FC, SATA, and SATA SE Arrays
SANnet II 200 FC
Array
SANnet II 200 SATA
Array
SANnet II 200 SATA SE
Array
Item
Total number of
ports
6
8
6
Channel 0
1 FC0 host or drive port; 2 FC0 dedicated host
2 FCO dedicated host ports
*
3
default: host port
ports
Channel 1
1 FC1 host or drive port; 2 FC1 dedicated host
2 FC1 dedicated host ports
*
default: host port
ports
1
Channel 2
1 FC2 dedicated drive
port
1 FC2 dedicated drive
port
None
2
Channel 3
1 FC3 dedicated drive
port
1 FC3 dedicated drive
port
None
Channel 4
Channel 5
1 FC4 host or drive port; 1 FC4 host or drive port;
default: host port default: host port
1 FC4 host port
1 FC5 host port
1 FC5 host or drive port; 1 FC5 host or drive port;
default: host port default: host port
1. Channel 2 drive ports connect to drive loop A ports on expansion units.
2. Channel 3 drive ports connect to drive loop B ports on expansion units.
3. Only one host port connection per channel is allowed when connecting to a fabric switch.
4.8.1
Drive Port Connectivity in a Dual-Controller Array
Drive channels connect to the internal drives in the array and can also connect to
drives in external expansion units. The key difference between the SANnet II 200 FC
and SATA array drive channels is the assignment of two ports for each channel:
■
The SANnet II 200 FC array has a drive channel assigned to two ports on each
I/O controller module. Each drive channel is a pair of ports on a single I/O
controller module. In a dual-controller configuration, the top controller has two
ports for drive channel 2, and the lower I/O controller module has two ports for
drive channel 3.
■
The SANnet II 200 SATA array has a drive channel assigned to one port on
each I/O controller module in a dual-controller configuration.
Chapter 4 Connecting Your Array 4-17
Note – The SANnet II 200 SATA SE array configuration does not include drive ports.
4.8.1.1
SANnet II 200 FC Array Drive Ports
Configured for redundancy, each controller in a dual-controller RAID array has two
adjacent dedicated drive channels on one loop to load balance I/O operations (see
Figure 4-12). Each drive channel has two SFP ports that can be connected to expansion
units. Drive channels 2 and 3 access all the disk drives and are interconnected to load-
balance I/O operations. Each drive channel has an upper and lower port.
Two ports on channel 3
Two drive ports on channel 2
Figure 4-12 Dedicated Drive Channels 2 on the Upper Controller and 3 on the Lower Controller in
a Dual-Controller SANnet II 200 FC Array
The I/O controller module in slot A (the upper slot) houses drive channel 2, which
connects to the 12 internal disk drives through their A ports. The I/O controller module
in slot B (the lower slot) houses drive channel 3, which connects to the 12 internal disk
drives through their B ports.
4.8.1.2
SANnet II 200 SATA Array Drive Ports
Drive channels 2 and 3 are dedicated drive channels. Configured for redundancy, each
drive channel of the top I/O controller module shares a loop with the matching drive
channel on the bottom I/O controller module. For example, drive channel 2 of the top
I/O controller module shares the same loop as channel 2 on the bottom I/O controller
to expansion units. Drive channels 2 and 3 access all the disk drives using internal FC-
SATA routing technology and are interconnected to load balance I/O operations.
4-18 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Two drive ports on channel 3
Two drive ports on channel 2
An upper port and a lower port are on each drive channel.
Figure 4-13 Dedicated Drive Channels 2 and 3 (on Both Controllers) in a Dual-Controller SANnet
II 200 SATA Array
4.8.2
Host Port Connectivity in a Dual-Controller Array
Host channels connect to host computers either directly or through storage switches or
other devices. In a default dual-controller RAID configuration, each controller has four
host channels, channels 0, 1, 4, and 5. Port bypass circuits connect each pair of host
SFP ports on a host channel; as a result, each host channel accesses both controllers.
The main differences between the SANnet II 200 FC, SATA, and SATA SE arrays are
Table 4-6 Number of Host Ports and Supported Host Port Speeds
Data Transfer
Speed
SANnet II 200 FC Array
SANnet II 200 SATA and SATA SE Array
1 Gbit or 2-Gbit
Maximum of 4 host ports per
I/O controller module
Maximum of 4 host ports (FC 0 and FC 1)
per I/O controller module
2 Gbit only
N/A
Maximum of 2 host ports (FC 4 and FC 5)
per I/O controller module
4.8.2.1
SANnet II 200 FC Array
In a default dual-controller RAID configuration, each controller has four host ports.
four host channels support 1-Gbit or 2-Gbit data transfer speeds. Each host channel has
un upper port and a lower port.
Chapter 4 Connecting Your Array 4-19
Host channel 4
Host channel 1
Host channel 5
Host channel 0
An upper port and a lower port are on each host channel.
Figure 4-14 Host Channels on a Dual-Controller SANnet II 200 FC Array
4.8.2.2
SANnet II 200 SATA and SATA SE Arrays
In a default dual-controller SANnet II 200 SATA and SATA SE RAID configuration,
each controller has six host ports, as shown in Figure 4-15:
■
■
■
■
Two host ports connect to channel 0 (FC 0)
Two host ports connect to channel 1 (FC 1)
One host port connects to channel 4 (FC 4)
One host port connects to channel 5 (FC 5)
Channels 0 and 1 support 1-Gbit or 2-Gbit data transfer speeds. Channels 4 and 5
support 2-Gbit data transfer speeds only.
If a fabric switch is connected to one port of channel 0 or channel 1, no connections
can be made with the other three ports of that channel. If channel 0 (FC 0) is connected
to a fabric switch, for example, the second port for channel 0 on that controller, and
both ports on a redundant controller cannot be used. Similarly, if channel 1 (FC 1) is
connected to a fabric switch, the second port on that controller and the two FC 1 ports
on a redundant controller cannot be used.
Two hosts can be directly connected to either channel 0 (ports FC 0) or channel 1
(ports FC 1), but in that configuration, host filters are required if you want to control
host access to storage. Each host channel has an upper port and a lower port.
4-20 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Host channel 4
Host channel 1
Host channel 5
Host channel 0
An upper port and a lower port are on each host channel.
Figure 4-15 Host Channels on a Dual-Controller SANnet II 200 SATA Array
The following figure shows the host channels for a SANnet II 200 SATA SE array.
Host channel 4
Host channel 1
Host channel 5
Host channel 0
An upper port and a lower port are on each host channel.
Figure 4-16 Host Channels on a Dual-Controller SATA SE Array
4.8.3
Default SFP Placement
Default configurations do not include an SFP connector in every SFP port. You might
want to add or rearrange SFPs, depending on the configuration mode (loop or point-to-
point), the number of planned host connections, the necessary number of redundant
connections to hosts, and the number of expansion units needed.
The supported SFP is a single-port, optical SFP transceiver for multimode (short wave)
or single-mode (long wave) use. It is compatible with the Small Form Factor Pluggable
Multi-Sourcing Agreement (MSA, Sep. 2000), and 1x and 2x Fiber Channel. The
optical connector used is the low-profile LC connector.
SFPs are field-replaceable units (FRUs) and can be ordered from Dot Hill. These SFPs
have been selected and tested to provide the necessary reliability and performance.
SFPs from other vendors are not supported.
Chapter 4 Connecting Your Array 4-21
Array Configuration” on page 5-1. Refer also to the configuration options presented in
the SANnet II 200 FC and SATA Array Best Practices Manual.
In dual-controller arrays, SFPs are initially plugged into one of each pair of host and
drive ports. The default port connections are:
■
The upper I/O controller module has SFPs in the FC0, FC2, and FC4 ports.
The lower I/O controller module has SFPs in the FC1, FC3, and FC5 ports.
■
This configuration provides connections to all six host channels as well as to both
Host port FC0 Drive port FC2
Host port FC4
Host port FC5
Figure 4-17 Default Dual-Controller SANnet II 200 FC Array SFP Placement
Host port FC0
Host port FC1
Drive port FC3
Drive port FC2
Host port FC4
H/D/RCC
H/D/RCC
Host port FC1
Host port FC5
Drive port FC3
Figure 4-18 Default Dual-Controller SANnet II 200 SATA Array SFP Placement
Note – The SANnet II 200 SATA SE array configuration does not include SFPs. SFPs
must be ordered separately.
In the default single-controller array, SFPs are initially plugged into the following
ports:
■
■
■
■
FC0
FC1
FC4
FC5
4-22 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
No SFPs are plugged into the drive channels. This configuration is appropriate for
connecting to up to four hosts or fibre switches, with no connection to expansion units
Host port FC0
Host port FC1
Host port FC5
Host port FC4
Figure 4-19 SANnet II 200 FC Array Default Single Controller SFP Placement
H/D/RCC
Host port FC4
Host port FC5
Host port FC0
Host port FC1
Figure 4-20 SANnet II 200 SATA Array Default Single-Controller SFP Placement
Note – The SANnet II 200 SATA SE array configuration does not include SFPs. SFPs
must be ordered separately.
In a default SANnet II 200 FC expansion unit, SFPs are initially plugged into the left-
most port of the upper I/O expansion module and right-most port of the lower I/O
Note – The SANnet II 200 SATA SE array does not support this configuration.
Chapter 4 Connecting Your Array 4-23
Default SFP Placement
Figure 4-21 SANnet II 200 FC JBOD/Expansion Unit Default SFP Placement
In a default SANnet II 200 SATA expansion unit, SFPs are initially plugged into the
left-most Loop A port in the upper I/O expansion module and in the left-most Loop B
Default SFP Placement
Figure 4-22 SANnet II 200 SATA Expansion Unit Default SFP Placement
4.8.4
Changing Your SFP Configuration
The FC and SATA arrays use SFP connectors to attach to hosts and expansion units.
SATA SE arrays use SFP connectors to attach to hosts. These SFP connectors resemble
port on the array or expansion unit chassis, and a duplex jack into which you insert a
cable to make the connection.
■
To connect to an empty port, first slide the SFP connector into the port so that it
connects firmly with the chassis. Then plug the fiber-optic cable’s SFP connector
into the duplex jack at the end of the SFP.
■
To remove an SFP connector, remove the cable if one is connected to it, and then
slide the SFP out from the port.
4-24 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Figure 4-23 Typical SFP Connector Used to Connect Cables to Chassis SFP Ports
4.9
Establishing Communications With An Array
Before you can configure an array, you must establish one or more communication
links between at least one host and an array. You can use any combination of the
array’s RS-232 COM (serial) port, the Ethernet port, and the in-band data connection
between the host and the array.
■
A direct RS-232 port connection guarantees that a host can communicate with a
RAID array even if the array’s IP address changes or is unknown, or if the TCP/IP
■
SANnet II 200 FC, SATA, and SATA SE arrays ship with the Dynamic Host
Configuration Protocol (DHCP) TCP/IP network support protocol enabled. If your
network uses a DHCP server to dynamically and automatically allocate IP addresses
to attached devices, as soon as the RAID array is powered up an IP address is
assigned to it. You can use this IP address to monitor and manage the array’s
Ethernet” on page 4-28 for information about setting up a telnet session.
■
A fixed IP address enables you to use telnet or other out-of-band management
sessions to manage the array with no risk of a DHCP server changing its IP address.
information.
When the array is first powered up, the default IP address setting uses the IP address
assigned by a DHCP server. If the RAID array is connected to a network with an active
DHCP server, you can determine the IP address assigned to the array in several ways:
■
If you have access to the controller firmware, from the Main Menu choose
Configuration Parameters →Communication Parameters →Internet Protocol
(TCP/IP). If the RAID controller is not on a network connected to an active DHCP
server, “DHCP Client” is displayed rather than a DHCP-assigned IP address. Refer
to the “Configuration Parameters” chapter in the SANnet II Family RAID Firmware
User's Guide for more information.
Chapter 4 Connecting Your Array 4-25
■
Use the show network-parametersCLI command. Refer to the SANscape CLI
User's Guide for more information. If the RAID controller is not on a network
connected to an active DHCP server, an IP address of 0.0.0.0 is displayed. Refer to
the SANscape CLI User's Guide for more information.
■
■
Use the Change Network Settings window in SANscape. Refer to the “Updating the
Configuration” chapter in the SANscape User’s Guide for more information.
Enable the controller firmware to send event messages using SNMP. Event
messages sent as SNMP traps to the email address you specify contain the IP
address of the array from which it is sent. Refer to the “Configuration Parameters”
chapter in the SANnet II Family RAID Firmware User's Guide for more information.
Once you have determined the RAID controller’s IP address using one of these
methods, you can establish a telnet session to that IP address. However, because of the
dynamic nature of DHCP-assigned IP addresses, the RAID array’s IP address might
change in the event of a controller reset, a network outage, or if the DHCP server is
rebooted. If this happens, telnet sessions to the previous IP address can no longer
communicate with the array, and it is necessary to use one of the methods described
above to determine the new IP address.
If you do not have an active DHCP server on the same network as the RAID array, or
4.10
Configuring a Host COM Port to Connect to a
RAID Array
The RS-232 COM (serial) port on either controller module can be used to configure
and monitor the RAID array using the controller firmware. It can be connected to a
VT100 terminal, terminal emulation program, terminal server, or the serial port of a
server.
1. Use a null modem serial cable to connect the COM port of the RAID array to the serial
port on a host workstation.
A null modem serial cable is included in your package.
2. Set the serial port parameters on the workstation as follows:
■
■
■
■
38,400 baud
8 bit
1 stop bit
No parity
to communicate using the COM port.
To see platform-specific details for other operating systems, see the appendix that
describes the operating system your server uses.
4-26 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
4.11
Manually Setting a Static IP Address
You can manually set an array’s IP address using the controller’s firmware by typing
values for the IP address, the subnet mask, and IP address of the gateway. If your
network uses a Reverse Address Resolution Protocol (RARP) server or a Dynamic
Host Configuration Protocol (DHCP) server to automatically configure IP information
for devices on the network, you can specify the appropriate protocol instead of typing
the information manually.
Note – If you assign an IP address to an array to manage it out-of-band, for security
reasons consider using an IP address on a private network rather than a publicly
routable network.
To set the IP address, subnet mask, and gateway address of the RAID controller,
perform the following steps.
1. Access the array through the COM port on the I/O Controller module or through a
telnet session to the existing IP address.
2. From the controller firmware’s Main Menu, choose view and edit Configuration
parameters →Communication Parameters →Internet Protocol (TCP/IP).
3. Select the chip hardware address and MAC address that is displayed.
4. Choose Set IP Address →Address.
5. Type in the desired IP address, subnet mask (if it is not automatically supplied), and
gateway address, choosing each menu option in turn, backspacing over any existing
entries.
If your network sets IP addresses using a RARP server and you prefer using it to using
a fixed IP address, type RARPrather than an IP address, and do not type in a subnet
mask or gateway address. If your network sets IP addresses using a DHCP server and
you prefer using it to using a fixed IP address, type DHCPrather than an IP address,
and do not type a subnet mask or gateway address.
6. Press Esc to continue.
A confirmation prompt is displayed.
Change/Set IP Address ?
7. Choose Yes to continue.
Note – You must reset the controller for the configuration to take effect.
You are prompted to reset the controller.
Chapter 4 Connecting Your Array 4-27
8. Choose Yes to reset the controller.
The controller takes a few minutes to format a small storage sector on each physical
drive before logical drives can be successfully initialized.
4.12
Setting Up Out-of-Band Management Over
Ethernet
The controller Ethernet port offers interactive out-of-band management through the
following interfaces:
■
The SANscape application. Refer to the SANscape User’s Guide for details.
■
The SANscape Command-Line Interface (CLI). Refer to the SANscape CLI User’s
Guide for details.
■
The firmware application you access when you use the telnetcommand to
connect to the IP address of the controller.
Using an Ethernet connection, you can configure and monitor RAID arrays and
expansion units remotely by using the telnetcommand to access the firmware
application on the array and by using the SANscape or SANscape CLI software.
Caution – If you assign an IP address to an array to manage it out-of-band, for
security reasons consider using an IP address on a private network rather than a
publicly routable network. Using the controller firmware to set a password for the
controller limits unauthorized access to the array. Changing the firmware’s Network
Protocol Support settings can provide further security by disabling the ability to
remotely connect to the array using individual protocols such as HTTP, HTTPS, telnet,
FTP, and SSH. Refer to the “Communication Parameters” section of the SANnet II
Family RAID Firmware User’s Guide for more information.
1. To access the RAID array over an Ethernet connection, first connect the RAID array’s
Ethernet port on each controller to the network.
Note – SANnet II family arrays require at least CAT-5 Ethernet cable.
Note – In a dual-controller RAID array, be sure to connect both Ethernet ports to the
network. This provides failover if one controller fails.
3. To use the firmware application program from the host server, connect to the IP
address of the RAID array controller with the following command:
4-28 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
# telnet IP-address
Note – Alternatively, you can use the Solaris operating system tipcommand or a
terminal emulation program to access the firmware application program. See
information.
4. Press Ctrl-L to refresh the screen and view the Main Menu.
Note – If you reset the controller during a telnetsession, you are disconnected from
the RAID array. Use the telnetcommand to login to the array again.
To connect the SANscape program (on a host server) to a RAID array that has an IP
address, refer to the out-of-band management instructions in the SANscape User’s
Guide.
The same document’s “Email and SNMP” appendix provides information about
configuring SANscape software to use Simple Network Management Protocol (SNMP)
traps and Management Information Bases (MIBs) to provide information to other out-
of-band enterprise management software. The “Monitoring the Array” chapter explains
the use of SANscape agents to redirect event messages into host system logs.
You can also enable the controller firmware to send event messages using SNMP.
Refer to the “Configuration Parameters” chapter in the SANnet II Family RAID
Firmware User's Guide for more information.
4.13
Scaling a SANnet II 200 Fibre Channel Array
Into a High-Capacity Configuration
Note – High-capacity SANnet II 200 FC and SATA array configurations are
supported, with certain limitations. A SANnet II 200 FC array with more than two
expansion units is a high-capacity configuration. A SANnet II 200 SATA array with
one expansion unit is a high-capacity configuration.
SANnet II 200 FC arrays typically allow the connection of up to two expansion units
to support a maximum of 36 disks. However, you can create larger configurations that
support as many as eight expansion units and up to 108 disks if you use the guidelines
in this section. You can also create larger configurations of SANnet II 200 SATA
arrays that support from one to five expansion units and up to 72 disks.
Chapter 4 Connecting Your Array 4-29
Carefully consider the following limitations of special high-capacity configurations.
Using multiple SANnet II 200 FC arrays connected to the same SAN normally
provides significantly better performance than one high-capacity configuration.
■
Maximize the size of each logical drive (up to 1908 Gbyte) before creating another
logical drive in order to allow for maximum storage capacity.
■
SANnet II 200 FC arrays can be connected to SANnet II 200 FC expansion units.
They can also be connected to a maximum of five SANnet II 200 SATA expansion
units and SANnet II 200 FC expansion units, in any combination.
■
SANnet II 200 SATA arrays can only be connected with SANnet II 200 SATA
expansion units.
Refer to the SANnet II 200 FC and SATA Array Best Practices Manual for more
information and sample cabling diagrams.
Note – Large configurations might require the use of one or more optional extended-
length cables, part number X9732A. Other items might also be required. Refer to the
SANnet II Family FRU Installation Guide for information about supported cables,
SFPs, and other user-replaceable items.
4.14
Adding an Expansion Unit to an Existing RAID
Array
To install an expansion unit to an existing, configured RAID array, perform the
following steps.
1. Stop I/O and shut down the controller to ensure that all data in the cache is written to
disk.
2. Verify that the loop ID of the expansion unit is set to a different ID than the RAID unit
and any expansion units already attached.
3. Physically cable the new expansion unit to the array using a valid cabling
configuration.
Refer to the SANnet II 200 FC and SATA Array Best Practices Manual for more
information on expansion unit cabling configurations.
4. Power on the expansion units.
5. Power on the RAID array.
4-30 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
6. Verify the SES/PLD (programmable logic device) version of the expansion unit and the
RAID array.
To review the version information, using the SANscape CLI, type show ses. Or,
using SANscape, open the View Enclosure window.
7. If the SES/PLD version is not the same for the RAID array and the expansion unit,
download the latest SES/PLD firmware from the Dot Hill web site:
a. Choose Support →Downloads.
b. Click Firmware Downloads.
c. Enter the required information, and click Submit.
d. Choose and download the appropriate SES/PLD firmware.
4.15
Connecting Ports to Hosts
In a default array configuration, channels 0, 1, 4, and 5 are host channels, so you can
directly connect an array to four host computers. SFP connectors are plugged into
channels 0 and 4 on the upper controller and channels 1 and 5 on the lower controller
for this purpose.
You can connect two additional host computers to channels 0 and 1 of a SANnet II 200
SATA array or SATA SE array. To support six host computers, however, you need to
insert SFPs in the four unpopulated host ports. Except for some clustering
configurations, when you connect two hosts to channel 0 or channel 1 on a SANnet II
200 SATA or SATA SE array, you must use host filtering if you want to control host
access in this configuration. Refer to the user documentation for your clustering
software to determine whether the clustering software can manage host access in this
configuration.
If you want to connect a SANnet II 200 FC array to more than four host computers, or
connect a SATA or SATA SE array to more than six host computers, without changing
the default configuration, you can connect these four host channels to ports on storage
switches in a storage area network (SAN) configuration.
When a fabric switch is connected to one port of channel 0 or channel 1 of a SATA or
SATA SE array, no connections can be made with the other three ports of that channel.
If channel 0 (port FC0) is connected to a fabric switch, for example, the second port of
channel 0 on that controller and the FC0 ports on a redundant controller cannot be
used.
Chapter 4 Connecting Your Array 4-31
Note – The connection of a FC, SATA, or SATA SE array to Fibre Channel HBAs that
use different speeds (1 Gbit and 2 Gbit) on the same channel is not supported. You can,
however, mix 1-Gbit and 2-Gbit Fibre Channel HBAs on different channels. This
limitation is due to the design of SANnet II 200 Fibre Channel array port bypass
circuitry and the inability of Fibre Channel to support auto-negotiation in a multi-drop
loop configuration.
Use fiber-optic cables to connect host channels to Fibre Channel HBAs on your host
computers or to other devices such as storage switches.
1. Connect a fiber-optic cable to an HBA or FC port on each host or storage switch you
want to connect to the array.
2. Connect the SFP connector at the other end of each of these fiber-optic cables to host
channel SFP connectors on the back of the array.
If there is no SFP connector in the port you want to use, first insert an SFP connector
4.16
Power-On Sequence
Power on the equipment in the following order so the host computer discovers all
connected arrays:
1. Expansion units
2. RAID array
3. Host computers
If an array is connected to a host using a serial port connection and powered on, the
host terminal window displays a series of messages, as shown in the following
example.
SANnet II FC Array is installed with 1024MBytes SDRAM
Total channels: 6
Channel: 0 is a host channel, id: 40
Channel: 1 is a host channel, id: 41
Channel: 2 is a drive channel, id: 14, 15
Channel: 3 is a drive channel, id: 14, 15
Channel: 4 is a host channel, id: 70
Channel: 5 is a host channel, id: 71
Scanning channels. Please wait a few moments!
Preparing to restore saved persistent reservations. Type
'skip' to skip:
Do not use the skipoption shown at the bottom of the example. This option is
reserved for support personnel performing testing.
4-32 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
4.17
Powering Off the Array
You might need to power off the array (both power supplies) if you relocate the array
or perform certain maintenance procedures with associated servers. Always shut down
the array’s controller before powering off the array.
Caution – If controllers are not shut down from the firmware application or the
SANscape CLI before an array is powered off, data that is written to cache and that has
not been completely written to the disks will be lost.
To power off an array, perform the following steps.
1. Stop all I/O activity to the array.
2. Shut down the controller with one of the following commands:
■
Firmware application Shutdown Controllercommand (system Functions →
Shutdown controller)
■
SANscape CLI shutdown controllercommand
These commands first halt all I/O activity, and then write the contents of cache to the
drives.
3. Power off both power supply/fan modules.
on.
Chapter 4 Connecting Your Array 4-33
4-34 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
CHAPTER
5
Configuration Overview
This chapter highlights the tools and the important limitations and guidelines which
must be understood prior to configuring your array.
This chapter covers the following topics:
■
■
■
■
■
■
Subsequent chapters in this manual describe further procedures used to complete the
installation and configuration of the arrays. The flexible architecture of the SANnet II
200 FC, SATA, and SATA SE arrays makes many configurations possible.
5.1
Summary of Array Configuration
SANnet II 200 FC, SATA, and SATA SE arrays are preconfigured with a single RAID
0 logical drive mapped to LUN 0, and no spare drives. This is not a usable
configuration, but it enables in-band connections with management software. You must
delete this logical drive and create new logical drives.
All configuration procedures can be performed by using the COM port. You can also
perform all procedures except the assignment of an IP address through an Ethernet port
connection to a management console.
The following steps describe the typical sequence of steps for completing a first-time
configuration of the array.
1. Mount the array on a rack, cabinet, desk, or table.
2. Set up the serial port connection.
5-1
3. Set up an IP address for the controller.
Note – For detailed information in performing steps 4–14, refer to the SANnet II
Family RAID Firmware User’s Guide for optimization mode guidelines.
4. Check the status of the available physical drives.
5. Determine whether sequential or random optimization is more appropriate for your
applications and configure your array accordingly.
6. Confirm or change the Fibre Connection Option (point-to-point or loop).
7. Revise or add host IDs on host channels.
The IDs assigned to controllers take effect only after the controller is reset.
8. Delete default logical drives and create new logical drives.
Note – While the ability to create and manage logical volumes remains a feature of
arrays for legacy reasons, the size and performance of physical and logical drives have
made the use of logical volumes obsolete. Logical volumes are unsuited to some
modern configurations, such as Sun Cluster environments, and do not work in those
configurations. Avoid using logical volumes and use logical drives instead. For more
information about logical drives, refer to the SANnet II Family RAID Firmware User’s
Guide.
9. (Optional) In dual-controller configurations only, assign logical drives to the secondary
controller to load balance the two controllers.
Caution – In single-controller configurations, do not disable the Redundant
Controller setting and do not set the controller as a secondary controller. The primary
controller controls all firmware operations and must be the assignment of the single
controller. If you disable the Redundant Controller Function and reconfigure the
controller with the Autoconfigure option or as a secondary controller, the controller
module becomes inoperable and will need to be replaced.
10. (Optional) Partition the logical drives.
11. Map each logical drive partition to an ID on a host channel, or apply a host LUN filter
to the logical drives.
5-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Note – Each operating system has a method for recognizing storage devices and LUNs
and might require the use of specific commands or the modification of specific files.
Be sure to check the information for your operating system to ensure that you have
performed the necessary procedures.
For information about different operating system procedures, see:
■
■
■
■
■
12. Reset the controller.
Configuration is complete.
Note – Resetting the controller can result in occasional host-side error messages such
as parity error and synchronous error messages. No action is required and the condition
corrects itself as soon as reinitialization of the controller is complete.
13. Save the configuration to a disk.
14. Make sure that the cabling from the RAID array to the hosts is complete.
Note – You can reset the controller after each step or at the end of the configuration
process.
Caution – Avoid using in-band and out-of-band connections at the same time to
manage the array. Otherwise, conflicts between multiple operations can cause
unexpected results.
5.1.1
Point-to-Point Configuration Guidelines
Remember the following guidelines when implementing point-to-point configurations
in your array and connecting to fabric switches:
■
The default mode is “Loop only.” You must change the Fibre Channel Connection
mode to “Point-to-point only” with the firmware application. Refer to the SANnet II
Family RAID Firmware User’s Guide for more information.
Chapter 5 Configuration Overview 5-3
Caution – If you keep the default loop mode and connect to a fabric switch, the array
automatically shifts to public loop mode. As a result, communication between the
array and the switched fabric runs in half duplex (send or receive) instead of providing
the full duplex (send and receive) performance of point-to-point mode.
■
■
■
Check the host IDs on all the channels to ensure that there is only one ID per
channel (on the primary controller or on the secondary controller) for point-to-point
mode. When viewing the host IDs, there should be one primary controller ID (PID)
or one secondary controller ID (SID); the alternate port ID should display N/A.
Proper point-to-point mode allows only one ID per channel.
On the SANnet II 200 SATA or SATA SE array, if one of the dual-ports of channel
0 is connected to a switch (port FC 0), the other FC 0 port on that controller and the
two FC0 ports on a redundant controller cannot be used. Similarly, if one of the
channel 1 ports is connected with a switch (port FC 1), the other FC 1 port on that
controller, and the two FC 1 port on a redundant controller cannot be used.
If you change the mode to Point-to-point only and attempt to add a second ID, the
controller does not allow you to add an ID to the same controller and channel. For
example, if you have ID 40 on CH 0 PID, and N/A on CH 0 SID, the controller does
not allow you to add another PID to CH 0.
The controller displays a warning if the user is in point-to-point mode and tries to
add an ID to the same channel but on the other controller. The warning is displayed
because you have the ability to disable the internal connection between the channels
on the primary and secondary controller using the SANscape CLI set inter-
controller link command and, by doing this, you can have one ID on the
primary and another ID on the secondary as a legal operation.
However, if you ignore this warning and add an ID to the other controller, the RAID
controller does not allow a login as a Fabric Loop (FL) port because this would be
illegal in a point-to-point configuration.
■
The firmware application allows you to add up to eight IDs per channel (four IDs on
each controller), which forces the fabric switch port type to become fabric loop. To
ensure F-port behavior (full fabric/full duplex) when attaching to a switch, only one
ID must be present on each channel and the array port must be set to point-to-point
mode.
■
Do not connect more than one port per channel on an array to a fabric switch.
Caution – In point-to-point mode or in public loop mode, only one switch port is
allowed per channel. Connecting more than one port per channel to a switch can
violate the point-to-point topology of the channel, force two switch ports to “fight”
over an AL_PA (arbitrated loop physical address) value of 0 (which is reserved for
loop-to-fabric attachment), or both.
■
With four host channels and four host IDs, you should load balance the host ID
setup so that half the IDs are on the primary controller and half the IDs are on the
secondary controller. When setting up LUNs, map each LUN to either two PIDs or
two SIDs. The hosts are in turn dual-pathed to the same two switched fabrics. When
5-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
attaching the cables for a LUN-mapped channel pair, make sure that the first
channel is connected to the upper port and the second channel is connected to the
lower port of the second channel.
For example, to provide redundancy, map half of the LUNs across Channel 0 (PID
40) and Channel 4 (PID 42), and then map the other half of your LUNs across
Channel 1 (SID 41) and Channel 5 (SID 43).
■
Point-to-point mode allows a maximum of 128 LUNs per array. In a redundant
configuration, 32 LUNs are dual-mapped across two channels on the primary
controller, and another 32 LUNs are dual-mapped across the secondary controller,
for a total of 64 distinct LUNs.
■
To use more than 64 LUNs, you must change to loop only mode, add host IDs to
one or more channels, and add 32 LUNs for each additional host ID.
Note – When in loop mode and connected to a fabric switch, each host ID is
displayed as a loop device on the switch so that, if all 16 IDs are active on a given
channel, the array looks like a loop with 16 nodes attached to a single switch FL port.
In public loop mode, the array can have a maximum of 1024 LUNs, where 512 LUNs
are dual-mapped across two channels, primary and secondary controller respectively.
5.1.2
A Sample SAN Point-to-Point Configuration
A point-to-point configuration has the following characteristics:
■
In SAN configurations, the switches communicate with the SANnet II 200 Fibre
Channel array host ports using a fabric point-to-point (F_port) mode.
■
When you use fabric point-to-point (F_port) connections between a FC, SATA, or
SATA SE array and fabric switches, the maximum number of LUNs is limited to
128 LUNs for a nonredundant configuration and 64 LUNs for a redundant
configuration.
■
■
Fibre Channel standards allow only one ID per port when operating point-to-point
protocols, resulting in a maximum of four IDs with a maximum of 32 LUNs for
each ID, and a combined maximum of 128 LUNs.
The working maximum number of LUNs is actually 64 LUNs in a configuration
where you configure each LUN on two different channels for redundancy and to
avoid a single point of failure.
In a dual-controller array, one controller automatically takes over all operation of a
second failed controller in all circumstances. However, when an I/O controller module
needs to be replaced and a cable to an I/O port is removed, the I/O path is broken
unless multipathing software has established a separate path from the host to the
operational controller. Supporting hot-swap servicing of a failed controller requires the
use of multipathing software, such as SANpath software, on the connected servers.
Chapter 5 Configuration Overview 5-5
Note – Multipathing for FC, SATA, and SATA SE arrays is provided by SANpath
software.
Remember these important rules:
■
A single logical drive can be mapped to only one controller, either the primary
controller or the secondary controller.
■
In a point-to-point configuration, only one host ID per channel is allowed. The host
ID can be assigned to the primary controller and be a PID, or it can be assigned to
the secondary controller and be a SID.
■
If you have two switches and set up multipathing (to keep all logical drive
connections operational for any switch failure or the removal of any I/O controller
module), ensure that each logical drive is mapped to two ports, one on each I/O
controller module, and on two channels. The cables from the two ports mapped to
Figure 5-2 for examples of this configuration.
and 5) of each host port and the host ID for each channel. N/A means that the port
does not have a second ID assignment. The primary controller is the top I/O controller
module, and the secondary controller is the bottom I/O controller module.
The dashed lines between two ports indicate a port bypass circuit that functions as a
mini-hub. The port bypass circuit on each channel connects the upper and lower ports
on the same channel and provides access to both controllers at the same time. If there
are two host connections to the upper and lower ports on Channel 0, and one host
connection is removed, the other host connection remains operational. Therefore, if
you have a redundant multipathing configuration in which you have two host
connections to each logical drive and one connection fails, the remaining path
maintains a connection to the logical drive.
logical drive remains fully operational when the following conditions occur:
■
One switch fails or is disconnected, and the logical drive is routed to the second
switch. For example, if switch 0 fails, switch 1 automatically accesses logical drive
0 through the cabling to the lower port on PID 41.
■
One I/O controller module fails, and all the host IDs for that controller are
reassigned (moved) to the second 1/O controller module. For example, if the upper
I/O controller module is removed, host IDs 40 and 41 are automatically moved to
the lower module and are managed by the second controller.
■
An I/O controller module fails or one cable is removed from an I/O controller
module, and all I/O traffic to the disconnected channel is rerouted through the
second port/host LUN assigned to the logical drive. For example, if you remove the
cable to channel 4, the data path for logical drive 1 switches to the port on channel
5.
5-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Server 0
Switch 0
Server 1
Switch 1
PID 40
N/A
0
0
PID 43
N/A
1
1
N/A
4
4
N/A
5
5
SID 45
SID 46
Map LG0 to PIDs 40 and 43
Map LG1 to SIDs 45 and 46
: Host port on channel number N
N
PID 40 / PID43 : Host IDs on primary controller
SID 45 / SID46 : Host IDs on secondary controller
N/A : Not applicable (no ID on that controller)
: Port bypass circuit
Figure 5-1 A Point-to-Point Configuration with a Dual-Controller SANnet II 200 FC Array and Two
Switches
Chapter 5 Configuration Overview 5-7
Server 0
Switch 0
Server 1
Switch 1
A
A
PID 40
N/A
PID 43
N/A
C
C
N/A
N/A
G
G
H
H
SID 45
SID 46
Map LG0 to PIDs 40 and 43
Map LG1 to SIDs 45 and 46
: Host port on channel number N
N
PID 40 / PID43 : Host IDs on primary controller
SID 45 / SID46 : Host IDs on secondary controller
N/A : Not applicable (no ID on that controller)
: Port bypass circuit
Figure 5-2 A Point-to-Point Configuration With a Dual-Controller SANnet II 200 SATA Array and
Two Switches
Note – These illustrations show the default controller locations; however, the primary
controller and secondary controller locations can occur in either slot and depend on
controller resets and controller replacement operations.
Table 5-1 summarizes the primary and secondary host IDs assigned to logical drives 0
5-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table 5-1 Example Point-to-Point Configuration With Two Logical Drives in a Dual-
Controller Array
Logical LUN
Channel Primary ID Secondary
Task
Drive
IDs
Number Number
ID Number
Map 32 partitions of LG 0 to
CH 0
LG 0
0-31
0
1
4
5
40
N/A
Duplicate-map 32 partitions of LG 0
LG 0 to CH 1
0-31
0-31
0-31
41
N/A
50
Map 32 partitions of LG 1 to
CH 4
LG 1
N/A
N/A
Duplicate-map 32 partitions of LG 1
LG 1 to CH 5
51
Perform the following steps to set up a typical point-to-point SAN configuration based
1. Check the position of installed SFPs. Move them as necessary to support the
connections needed.
2. Connect expansion units, if needed.
3. Create at least two logical drives (logical drive 0 and logical drive 1) and configure
spare drives.
Leave half of the logical drives assigned to the primary controller (default assignment).
Assign the other half of the logical drives to the secondary controller to load-balance
the I/O.
4. Create up to 32 partitions (LUNs) in each logical drive.
5. Change the Fibre Connection Option to Point to point only (view and edit
Configuration parameters →Host-side SCSI Parameters →Fibre Connections
Option).
6. For ease of use in configuring LUNs, change the host IDs on the four channels to the
following assignments:
Channel 0: PID 40 (assigned to the primary controller)
Channel 1: PID 41 (assigned to the primary controller)
Channel 4: SID 50 (assigned to the secondary controller)
Channel 5: SID 51 (assigned to the secondary controller)
Caution – Do not use the command, Loop preferred, otherwise point to point. This
command is reserved for special use and should be used only if directed by technical
support.
Chapter 5 Configuration Overview 5-9
7. Map logical drive 0 to channels 0 and 1 of the primary controller.
Map LUN numbers 0 through 31 to the single ID on each host channel.
8. Map logical drive 1 to channels 4 and 5 of the secondary controller.
Map LUN numbers 0 through 31 to the single ID on each host channel. Since each set
of LUNs is assigned to two channels for redundancy, the total working maximum
number of LUNs is 64 LUNs.
Note – The LUN ID numbers and the number of LUNs available per logical drive can
vary according to the number of logical drives and the ID assignments you want on
each channel.
9. Connect the first switch to ports 0 and 4 of the upper controller.
10. Connect the second switch to ports 1 and 5 of the lower controller.
11. Connect each server to each switch.
12. Install and enable multipathing software on each connected server.
The multipathing software prevents path failure but does not alter the controller
redundancy through which one controller automatically takes over all functions of a
second failed controller.
5.1.3
A Sample DAS Loop Configuration
Figure 5-4 includes four servers, a dual-controller array, and two expansion units.
Expansion units are optional.
Note – The SATA SE array does not support expansion units.
channels:
Table 5-2 Connection for Four Servers in a DAS Configuration
Server
Number
Upper I/O Controller Module
Lower I/O Controller Module
1
2
3
4
0
4
5
1
5
1
0
4
5-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Server 4
Server 3
Server 1
Server 2
H/D/RCC
H/D/RCC
Figure 5-4 A DAS Configuration With Four Servers, a Dual-Controller SANnet II
200 SATA Array, and Two Expansion Units
Establishing complete redundancy and maintaining high availability requires the use of
multipathing software such as SANpath software. To configure for multipathing:
1. Establish two connections between each server and the array.
2. Install and enable multipathing software on the server.
3. Map the logical drive each server is using to the controller channels that the server
is connected to.
5-12 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
DAS configurations are typically implemented using a fabric loop (FL_port) mode. A
FL_port connections between a FC, SATA, or SATA SE arrays and multiple servers
allow up to 1024 LUNs to be presented to servers. For guidelines on how to create
1024 LUNs, refer to the SANnet II Family RAID Firmware User’s Guide.
Perform the following steps to set up a DAS loop configuration as shown in Figure 5-3
1. Check the location of installed SFPs. Move them as necessary to support the
connections needed.
You must add SFP connectors to support more than four connections between servers
and a FC or SATA array. For example, add two SFP connectors to support six
connections and add four SFP connectors to support eight connections.
2. Connect expansion units, if needed.
3. Create at least one logical drive per server, and configure spare drives as needed.
4. Create one or more logical drive partitions for each server.
5. Confirm that the Fibre Connection Option is set to Loop only.
Caution – Do not use the command, “Loop preferred, otherwise point to point.” This
command is reserved for special use and should be used only if directed by technical
support.
Table 5-3 Example Primary and Secondary ID Numbers in a Loop Configuration
With Two IDs per Channel
Channel
Number
Primary
ID Number
Secondary
ID Number
0
1
4
5
40
43
44
47
41
42
45
46
7. Map logical drive 0 to channels 0 and 5 of the primary controller.
8. Map logical drive 1 to channels 1 and 4 of the secondary controller.
9. Map logical drive 2 to channels 0 and 5 of the primary controller.
10. Map logical drive 3 to channels 1 and 4 of the secondary controller.
Chapter 5 Configuration Overview 5-13
11. Connect the first server to port FC 0 of the upper controller and port FC5 of the lower
controller.
12. Connect the second server to port FC 4 of the upper controller and port FC1 of the
lower controller.
13. Connect the third server to port FC 5 of the upper controller and port FC0 of the lower
controller.
14. Connect the fourth server to port FC 1 of the upper controller and port FC4 of the
lower controller.
15. Install and enable multipathing software on each connected server.
5.1.4
Connecting Two Hosts to One Host Channel
(SATA Only)
Except in some clustering configurations, if you connect more than one host to channel
0 or channel 1 in a DAS loop configuration, you must use host filtering when you want
to control host access to storage. Refer to the SANnet II Family RAID Firmware User’s
Guide for information about host filters. Refer to the user documentation for your
clustering software to determine whether the clustering software can manage host
access in this configuration.
5.2
Larger Configurations
Larger configurations are possible using additional expansion units connected to FC
arrays or SATA arrays:
■
■
■
Up to eight expansion units are supported when connected to a SANnet II 200 FC
array.
Up to five expansion units are supported when connected to a SANnet II 200 SATA
array.
Up to five SANnet II 200 FC expansion units and SANnet II 200 SATA expansion
units can be combined when connected to a SANnet II 200 FC array. This enables
you to use FC drives for primary online applications and SATA drives for secondary
or near-line applications within the same RAID array.
Note – The SANnet II 200 SATA SE array does not support expansion units.
Certain limitations and considerations apply to these mixed configurations:
■
Connect SANnet II 200 SATA expansion units only to host channels (channels 0, 1,
4, or 5) on the SANnet II 200 FC array that have been converted to drive channels.
For information about converting host channels to drive channels, refer to the
SANnet II Family RAID Firmware User’s Guide.
5-14 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
■
■
■
Do not combine SANnet II 200 FC drives and SANnet II 200 SATA drives on the
same Fibre Channel loop. Use them only on separate loops.
Do not connect SANnet II 200 SATA expansion units to SANnet II 200 FC arrays in
single-controller configurations.
Make sure at least one additional logical drive is available before adding a SANnet
II 200 SATA expansion unit. It is preferable to make sure a minimum of one
available logical drive per SANnet II 200 SATA expansion unit is available.
■
Consider managing and monitoring SATA arrays and expansion units out-of-band,
balancing performance requirements against security issues. Because of the slower
performance of SATA drives, managing and monitoring SANnet II 200 SATA arrays
and expansion units using in-band connections might result in contention between
I/O operations and monitoring operations.
about appropriate uses of these products to make sure the solutions you choose suit
your applications and requirements.
For more detailed information, and for suggestions about the most appropriate
configurations for your applications and environment, refer to the SANnet II 200 FC
and SATA Array Best Practices Manual.
Chapter 5 Configuration Overview 5-15
5-16 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
CHAPTER
6
Checking LEDs
This chapter describes the front and back-panel LEDs, which display the operating
status of all drives and modules. Topics covered in this chapter are:
■
■
■
■
■
■
■
■
6.1
LEDs When The Array Is First Powered On
With the array powered up but not connected to a server, you should see the LED
conditions described in Table 6-1.
Table 6-1 Front-Panel LED Status When Array Is First Powered On
Drive LEDs
Blinking green
Solid green
Chassis ear LEDs
Note – Whenever media scan is running on a drive, its front-panel LED flashes green.
It is normal for almost all front-panel drive LEDs to flash green unless media scanning
is terminated. For more information, refer to the SANnet II Family RAID Firmware
User’s Guide.
6-1
6.2
Front-Panel LEDs
The drive LEDs are located between the rows of drives on the front-panel, as shown in
Figure 6-1. The system operation LEDs are located on the right ear of the chassis and
• Power
• Fan
Drive
Drive
LED 3
LED 4
LED 5
LED 0
LED 1
LED 2
• Temp
• Event
• Reset
push button
Disk 3
Disk 4
Disk 5
Disk 6
Disk 7
Disk 8
Disk 9
Disk 0
Disk 1
Disk 2
Disk 10
Disk 11
Figure 6-1 Front-Panel LEDs
Figure 6-2 shows the chassis ear LEDs and reset push button. Use a paper clip to push
on page 8-5 for more information about silencing audible alarms.
Power
Fan
Temp
Event
Reset push button
Figure 6-2 Chassis Ear LEDs and Reset Button on Front Panel
6-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table 6-2 lists the front-panel LEDs and describes LED activity.
Table 6-2 Front-Panel LEDs
LED
LED Color
Description
Drive
Solid green
Blinking green
Solid amber
Solid green
Solid amber
Good: Drive power-up and spin-up OK.
Good: Indicates drive activity.
Failed: Drive failure.
Power (Light bulb icon)
Monitors the DC output voltage
within tolerance specification.
Overcurrent protection shutting
down any voltage output is also
displayed.
Good: Power supply good.
Failed: One or more output voltages out of
range.
Voltage thresholds:
+5 VDC +/–.25 VDC
+12 VDC +/–.6 VDC
Current thresholds:
+5 VDC 35A
+12 VDC 25A
Fan (Fan icon)
Solid green
Solid amber
Solid green
Good: Both fans are rotating at 4000 RPM or
higher.
Monitors the fan speed within
nominal operational RPM
specification of 5000 RPM.
Faulty/Failed: One or both fans is rotating at
less than 4000 RPM.
Temp (Thermometer icon)
Monitors the temperature level
and indicates violations of the
internal temperature threshold
of 131° F (55° C).
Good: Under temperature threshold.
Solid amber
Solid green
Failed: Over temperature threshold.
Normal operation of I/O board.
Failed I/O board.
Event (Caution icon)
Indicates any abnormal or
failure event in the I/O board.
Solid amber
Blinking amber
Indicates that the version of the SES firmware
or associated hardware PLD code on one
controller does not match that on the other
controller.
Chapter 6 Checking LEDs 6-3
Note – To test that the LEDs work, using a paper clip, press and hold the Reset button
for 5 seconds. All the LEDs should change from green to amber when you perform this
test. Any LED that fails to light indicates a problem with the LED. When you release
the Reset button, the LEDs return to their initial state.
6.2.1
Drive LED Status
The drive LED color changes based on array events. For example, when a media scan
is performed, to indicate an event is taking place, the drive LEDs blink green for the
physical drives that compose the logical drive that is being scanned. The following
table lists the events that influence the drive LED status.
Table 6-3 Drive LED Status
LED Status
Event
Description
Solid green
No error
A drive is working as expected.
Blinking green Media scan
A logical drive is created, or the controller is
reset, and the default media scan command,
which automatically starts and runs continuously,
has not been stopped.
Blinking green Drive activity
A drive is processing I/O.
A drive fails.
Amber
Amber
Drive fault
Identify
The SANscape CLI set ledcommand is run,
or the firmware application, “Flash All Drives”
option is used.
Note – The media scan feature sequentially checks each physical drive in a selected
logical drive, block by block, for bad blocks. Whenever media scan is running on a
drive, its front-panel LED flashes green. It is normal for almost all front-panel drive
LEDs to flash green unless media scanning is terminated. For more information about
the media scan feature, refer to the SANnet II Family RAID Firmware User’s Guide.
6.2.2
Correcting SES or PLD Firmware Version Conflicts
When you replace an I/O controller, the new controller might have a version of SES or
PLD firmware different from the other controller in your array. If this mismatch
occurs, when you install a controller you hear an audible alarm and see a blinking
amber event LED, and an SES event message is sent.
6-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
A similar situation occurs when you add an expansion unit or JBOD and there is a
mismatch between the SES or PLD firmware of the RAID array and that of the
expansion unit, or between two expansion units.
upgrading SES and PLD firmware.
6.3
Back-Panel LEDs
The back-panel LED colors indicate the conditions described in the following figures
and tables.
Note – To test that the LEDs work, using a paper clip, press and hold the Reset button
for 5 seconds. All the LEDs should change from green to amber when you perform this
test. Any LED that fails to light indicates a problem with the LED. When you release
the Reset button, the LEDs return to their initial state.
6.3.1
I/O Controller Module LEDs
Figure 6-3 shows the SANnet II 200 FC array I/O controller module and the LEDs on
its back panel.
Ethernet link
Ethernet active
Battery
SFP speed
SFP link status
I/O activity
Cache
RAID controller status
Figure 6-3 SANnet II 200 FC Array I/O Controller Module and Battery Module
LEDs
on its back panel.
Chapter 6 Checking LEDs 6-5
Cache
I/O activity
Ethernet link
Battery
Ethernet active
H/D/RCC
RAID controller status
SFP link status
SFP speed
Figure 6-4 SANnet II 200 SATA Array I/O Controller Module and Battery Module
LEDs
Note – Although an amber light on the back panel often indicates a faulty component,
a steady amber light on the Ethernet link LED indicates normal Ethernet activity. See
Table 6-4 for more information.
modules and the LEDs on its back panel.
I/O activity
Cache
Ethernet active
Ethernet link
Battery
H/D/RCC
RAID controller status
SFP link status SFP speed
Figure 6-5 SANnet II 200 SATA SE Array RAID Controller I/O and Battery Module
LEDs
6-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table 6-4 I/O Controller Module and Battery Module LEDs
LED
Purpose
LED Color Definition
Battery
Status of battery
Solid green – Battery charged
Blinking green – Battery charging
Solid amber – Battery failed
Activity
Cache
I/O activity of host Off – Not busy (no I/O activity)
and disk ports
Blinking green – Busy (active I/O)
Status of memory
cache
Off – Clean cache
Blinking green – Dirty cache; data is in
memory and is not written to disk yet
Ethernet link
(active
controller)
Status of Ethernet
link
Solid amber – Active link
Off – Inactive connection
Ethernet link
(inactive
controller)
Status of Ethernet
link
Off – Active connection on inactive
controller, or inactive connection
Status of Ethernet
activity
Blinking green – Busy
Ethernet active
RAID controller
Status of controller Blinking green – Good (primary controller)
on I/O controller
module
Solid green – Good (secondary controller)
Solid amber – Failed RAID controller or I/O
module
SFP link (L)
SFP link status
Solid green – Active good FC Connection
Off – Empty or failed FC connection
SFP speed (S)
SFP speed status
Solid green – 2 Gbit
Off – 1 Gbit
Chapter 6 Checking LEDs 6-7
Note – Ethernet link LEDs on SANnet II 200 FC, SATA, and SATA SE arrays differ
from the Ethernet link LEDs found on SANnet II 200 SCSI arrays and SANnet II 220
SCSI arrays. On SANnet II 200 FC, SATA, and SATA SE arrays, a connected port’s
Ethernet link LED glows solid amber only on the active controller, because the
Ethernet port on an FC array is considered active only if its controller is active. On an
inactive controller, a port’s Ethernet link LED is off whether the port is connected or
not. The absence of a solid amber light on a connected port’s Ethernet link LED
indicates that this controller is not the active controller.
Note – An SFP link status (L) LED is off if there is no connection or a failed
connection to this SFP. This does not apply to SATA SE arrays because they do not
include SFPs.
6.3.2
I/O Expansion Module LEDs
II 200 FC expansion unit and the SANnet II 200 SATA expansion unit.
Note – This does not apply to the SANnet II 200 SATA SE array.
I/O module status
I/O activity
SFP link status
SFP speed
Figure 6-6 I/O Expansion Module for a SANnet II 200 FC Expansion Unit
SFP link status
I/O activity
I/O module status
SFP speed
Figure 6-7 I/O Expansion Module for a SANnet II 200 SATA Expansion Unit
6-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
The I/O expansion module LEDs and their color definitions are shown in Table 6-5.
Table 6-5 I/O Expansion Module LEDs
LED
Purpose
LED Color Definition
Activity
I/O activity of host Off – Not busy (no I/O activity)
and disk ports
Blinking green – Busy (active I/O)
I/O module
Status of I/O
module
Solid green – Power-up successful and SES
chip has successfully read on-board
temperature and voltage sensors
Amber – Expansion unit powering up, or
failed voltage or temperature sensor
Off - Expansion unit is not powered up
SFP link (L)
SFP link status
Solid green – Active good FC Connection
Off – Empty or failed FC connection
SFP speed (S)
SFP speed status
Solid green – 2 Gbit
Off – 1 Gbit
Note – An SFP link status (L) LED is off if there is no connection or a failed
connection to this SFP.
6.3.3
Power Supply and Fan Module LEDs
Table 6-6 Power Supply LEDs
Purpose
LED
LED Color Definition
Monitors the DC output voltage
within tolerance specification.
Overcurrent protection shutting down
Solid green
Power supply and fans are
good.
any voltage output is also displayed. Solid amber Failed: One or more output
Voltage thresholds:
+5 VDC +/–.25 VDC
+12 VDC +/–.6 VDC
Current thresholds:
+5 VDC 35A
voltages out of range or one
or both fans is rotating at less
than 4000 RPM.
+12 VDC 25A
The following figure shows the AC power supply and fan module.
Chapter 6 Checking LEDs 6-9
CHAPTER
7
Maintaining Your Array
This chapter covers the following maintenance and troubleshooting topics:
■
■
■
■
■
■
■
■
■
■
■
■
■
7.1
Using Software to Monitor and Manage the
Array
This section describes the software management tools available for monitoring and
managing the FC, SATA, or SATA SE array with in-band connections.
Note – The SANscape CLI and the SANscape software can also be accessed through
The following software management tools are provided with your array. The
documentation CD provides the related user guides.
■
SANscape provides centralized storage configuration, maintenance, and monitoring
functions. Refer to the SANscape User’s Guide for in-band setup procedures.
7-1
■
■
SANscape Alert provides event monitoring and notification. Refer to the SANscape
Alert User’s Guide for information.
SANscape Command-Line Interface (CLI) provides script-based management. Refer
to the SANscape CLI User’s Guide for SANscape CLI information.
For details on how to install SANscape, SANscape Alert, or SANscape CLI software,
refer to the SANscape Software Installation Guide.
The documentation CD provides the related user guides, with detailed installation and
configuration procedures for SANscape and SANscape Alert.
7.1.1
Out-of-Band Connections
With the out-of-band serial port connection, you can use a Solaris tipsession or a
Microsoft Windows terminal emulation program to access the firmware application.
With the out-of-band Ethernet port connection, you can use the telnetcommand to
You can also configure an array over the Ethernet connection with the SANscape CLI
and the SANscape software.
Caution – If you assign an IP address to an array to manage it out-of-band, for
security reasons consider using an IP address on a private network rather than a
publicly routable network.
7.1.2
7.1.3
In-Band Connections
With in-band host connections, you can use SANscape software or the SANscape
Command-Line Interface (CLI).
■
■
■
Refer to the SANscape User’s Guide for the in-band setup procedures.
Refer to the SANscape CLI User’s Guide for in-band and out-of-band commands.
Refer to the SANscape Software Installation Guide for all SANnet II 200 installation
instructions for all host-based software.
Other Supported Software
Multipathing for FC, SATA, and SATA SE arrays is provided by SANpath software.
Multipathing software is required when you have multiple connections from a server to
an array (directly or through a switch), want to avoid a single point of failure, and are
7-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
setting up a configuration with redundant pathing. Multipathing software makes
multiple paths between the server and the storage system and provides full services on
each path for path failover.
Refer to the appendix for your host and to the SANnet II 200 FC, SATA, and SATA SE
Array Release Notes for information about which versions of SANpath software are
supported on your platform. Refer to these release notes for information about
additional supported or provided software.
7.1.4
Enabling VERITAS DMP
To enable VERITAS Dynamic Multi-Pathing (DMP) support on VERITAS Volume
Manager in the Solaris operating system, perform the following steps.
Note – To see instructions for enabling VERITAS DMP on other supported platforms,
refer to your VERITAS user documentation.
1. Configure at least two channels as host channels (channels 1 and 3 by default) and add
additional host IDs, if needed.
3. Map each LUN to two host channels to provide dual-pathed LUNs.
4. Add the correct string to vxddladmso VxVM can manage the LUNs as a multipathed
JBOD.
# vxddladm addjbod vid=Dot Hill pid=”SANnet II FC”
# vxddladm listjbod
VID
PID
Opcode Page
Code Page Offset SNO
length
==========================================================
======
SEAGATE ALL
Dot Hill
PIDs
SANnet II FC
18 -1
18
36
12
-1
36
12
5. Reboot the hosts. System reboot is required to implement these changes.
Note – JBOD arrays require a license from VERITAS to enable any of its advanced
features. Refer to VERITAS Volume Manager Release Notes or contact VERITAS
Software Corporation for licensing terms and information.
Chapter 7 Maintaining Your Array 7-3
7.1.5
The VERITAS Volume Manager ASL
VERITAS has provided an Array Software Library (ASL) that must be installed on the
same host system as the Volume Manager 3.2 or 3.5 software to enable the software to
recognize a FC or SATA array.
7.2
Battery Operation
The battery LED (on the far right side of the I/O controller module) is amber if the
battery is bad or missing. The LED blinks green if the battery is charging and is solid
green when the battery is fully charged.
7.2.1
Battery Status
Battery status is displayed at the top of the initial firmware screen. BAT: status
displays somewhere in the range from BAD to ----- (charging) to +++++ (fully
charged).
For maximum life, lithium ion batteries are not recharged until the charge level is very
low, indicated by a status of -----. Automatic recharging at this point takes very little
time.
A battery module whose status shows one or more + signs can support cache memory
for 72 hours. As long as one or more + signs are displayed, your battery is performing
correctly.
Table 7-1 Battery Status Indicators
Battery
Display
Description
-----
Discharged; the battery is automatically recharged when it reaches this
state.
+----
Adequately charged to maintain cache memory for 72 hours or more in
case of power loss. Automatic recharging occurs when the battery
status drops below this level.
++---
90% charged; adequate to maintain cache memory for 72 hours or
more in case of power loss.
+++--
++++-
+++++
92% charged; adequate to maintain cache memory for 72 hours or
more in case of power loss.
95% charged; adequate to maintain cache memory for 72 hours or
more in case of power loss.
Over 97% charged; adequate to maintain cache memory for 72 hours
or more in case of power loss.
7-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Your lithium ion battery should be changed every two years if the unit is continuously
operated at 77° F (25° C). If the unit is continuously operated at 95° F (35° C) or higher,
the battery should be changed every year. The shelf life of your battery is three years.
Note – The RAID controller has a temperature sensor which shuts off battery charging
when the temperature reaches 129° F (54° C). When this happens, the battery status
might be reported as BAD, but no alarm is written to the event log because no actual
battery failure has occurred. This behavior is normal. As soon as the temperature
returns to the normal range, battery charging resumes and the battery status is reported
correctly. It is not necessary to replace or otherwise interfere with the battery in this
situation.
acceptable operating and nonoperating temperature ranges.
For information about the date of manufacture and how to replace the battery module,
refer to the SANnet II Family FRU Installation Guide.
7.3
Viewing Event Logs on the Screen
A controller event log records events and alarms that occur after the system is powered
on. The controller can store up to 1000 event log entries. The event log records
configuration and operation events as well as error messages and alarm events.
Note – The SES logic in each array sends messages to the event log, which report
problems and the status of the fans, temperatures, and voltages.
Caution – Powering off or resetting the controller automatically deletes all recorded
event log entries.
Chapter 7 Maintaining Your Array 7-5
1. From the Main Menu, choose view and edit Event logs to view the event logs.
A log of recent events is displayed.
Note – The controller can store up to 1000 event log entries. The event log records
configuration and operational events as well as error messages and alarm events.
2. Use your arrow keys to move up and down through the list.
3. To clear events from the log after you have read them, use your arrow keys to move
down to the last event you want to clear and press Return.
A Clear Below Event Logs? confirmation message is displayed.
4. Choose Yes to clear the recorded event log entries.
Note – Resetting the controller clears all recorded events. To retain event log entries
after controller resets, you can install and use the SANscape program.
7-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
7.4
Upgrading Firmware
Caution – Be particularly careful about downloading and installing PLD firmware. If
the wrong firmware is installed, or the firmware is installed on the wrong device, your
controller might be rendered inoperable. Always be sure to upgrade your SES
firmware first before trying to determine if you need a PLD upgrade.
7.4.1
Installing Firmware Upgrades
It is important that you run a version of firmware that is supported by your array.
Caution – Before updating your firmware, make sure that the version of firmware you
want to use is supported by your array.
To download new versions of controller firmware, or SES and PLD firmware, use one
of the following tools:
■
■
■
SANscape CLI (with an in-band connection, for Linux and Microsoft Windows
hosts, and for servers running the Solaris operating environment)
SANscape program (with an in-band connection, for Solaris and Microsoft
Windows hosts)
Firmware application (for controller firmware download only from a Microsoft
Windows host with an out-of-band serial port connection)
You should not use both in-band and out-of-band connections at the same time to
manage the array. You might cause conflicts between multiple operations.
7.4.2
Controller Firmware Upgrade Features
The following firmware upgrade features apply to the controller firmware:
■
Redundant Controller Rolling Firmware Upgrade
When downloading is performed on a dual-controller system, firmware is flashed
onto both controllers without interrupting host I/O. When the download process is
complete, the primary controller resets and lets the secondary controller take over
the service temporarily. When the primary controller comes back online, the
secondary controller hands over the workload and then resets itself for the new
firmware to take effect. The rolling upgrade is automatically performed by
controller firmware, and the user’s intervention is not necessary.
■
Automatically Synchronized Controller Firmware Versions
Chapter 7 Maintaining Your Array 7-7
A controller that replaces a failed unit in a dual-controller system often has a newer
release of the firmware installed than the firmware in the controller it replaced. To
maintain compatibility, the surviving primary controller automatically updates the
firmware running on the replacement secondary controller to the firmware version
of the primary controller.
Note – When you upgrade your controller firmware in the Solaris operating system,
the format(1M) command still shows the earlier revision level. To correct this, you
must update the drive label using the autoconfigureoption (option 0) of the
format(1M) command. When you select label, the drive is labelled with the
updated firmware version.
7.4.3
Upgrading SES and PLD Firmware
When you replace an I/O controller, the new controller might have a version of SES or
PLD firmware different from the other controller in your array. If this mismatch
occurs, when you install a controller you hear an audible alarm and see a blinking
amber Event LED.
To synchronize the SES firmware and hardware PLD versions, you must download
new SES firmware through SANscape software or the SANscape Command-Line
Interface (CLI).
If you have not installed this software, you must install it from the software CD that
shipped with your array.
■
■
■
Refer to the SANscape User’s Guide to see instructions for downloading firmware
for devices.
Refer to the SANscape CLI User’s Guide, or the sccli(1M) man page for similar
instructions using the SANscape CLI.
Refer to the SANnet II 200 FC, SATA, and SATA SE Array Release Notes for
instructions about where to obtain the firmware that you need to download.
When you open the SANscape software or the SANscape CLI and connect to the array,
an error message alerts you to the mismatched version problem.
7.5
Replacing the Front Bezel and Ear Caps
Some procedures require that you remove the front bezel and the small vertical plastic
caps on either side of the bezel that cover the rackmount tabs. These rackmount tabs
are referred to as “ears.”
7-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
7.5.1
Removing the Front Bezel and Ear Caps
1. Use the provided key to unlock both bezel locks.
2. Grasp the front bezel cover on both sides and pull it forward and then down.
Note – For many operations, including replacing disk drives, it is not necessary to
further detach the bezel, because dropping it down moves it sufficiently out of the way.
3. Press the right bezel arm (hinge) toward the left side to release it from the chassis hole.
The left hinge also disengages.
4. Note the location of the chassis bezel holes on each ear.
5. Remove the plastic caps from the front left and right ears of the array.
Both plastic caps are removed in the same way.
a. Squeeze both sides of the cap at the top and the bottom.
b. Turn the cap toward the center of the array until it disengages and pull it free.
7.5.2
Placing the Bezel and Ear Caps Back Onto the
Chassis
Each plastic cap is replaced in the same way, but be sure to place the cap with LED
labels on the right ear.
1. Align the inside round notches of the cap with the round cylindrical posts (ball studs)
on the ear.
2. Push the top and bottom of the ear cap onto the ear, pressing in on the top side toward
the center of the array first.
3. Continue pushing the top and bottom of the ear cap onto the ear, pressing on the side
toward the outside of the array.
Do not use force when placing a cap on an ear.
Caution – Be careful to avoid compressing the Reset button under the plastic cap
when you replace the plastic cap on the chassis.
4. Insert the bezel arms into the chassis holes.
5. Lift the bezel into position and press it onto the front of the chassis until it is flush with
the front.
6. Use the key to lock both bezel locks.
Chapter 7 Maintaining Your Array 7-9
7-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
CHAPTER
8
Troubleshooting Your Array
This chapter covers the following maintenance and troubleshooting topics:
■
■
■
■
■
■
■
■
■
■
■
For more troubleshooting tips, refer to the SANnet II 200 FC, SATA, and SATA SE
information. Product documentation can also be found at this Dot Hill web site:
8.1
Sensor Locations
Monitoring conditions at different points within the array enables you to avoid
problems before they occur. Cooling element, temperature, voltage, and power sensors
are located at key points in the enclosure. The SCSI Enclosure Services (SES)
processor monitors the status of these sensors. Refer to the SANnet II Family RAID
Firmware User’s Guide for details.
The following tables describe each element and its sensors.
8-1
8.1.1
Cooling Element Sensors
There are two fans in each power supply module. The normal range for fan speed is
4000 to 6000 RPM. Cooling element failure occurs when a fan’s speed drops below
4000 RPM.
Table 8-1 Cooling Element Sensors for FC, SATA, and SATA SE Arrays
Element
ID
Alarm
Condition
Description
Location
0
1
2
3
Cooling Fan 0 Power Supply 0 < 4000 RPM
Cooling Fan 1 Power Supply 0 < 4000 RPM
Cooling Fan 2 Power Supply 1 < 4000 RPM
Cooling Fan 3 Power Supply 1 < 4000 RPM
FAN 2
FAN 3
PS1
FAN 0
FAN 1
PS0
Figure 8-1 Cooling Fan Locations
8-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
8.1.2
Temperature Sensors
Extreme high and low temperatures can cause significant damage if they go unnoticed.
There are twelve temperature sensors at key points in the enclosure.
Table 8-2 Temperature Sensors for FC, SATA, and SATA SE Arrays
Element
ID
Description
Location
Alarm Condition
0
Temperature Sensor 0
Drive Midplane Left
< 32° F (0° C) or > 131° F
(55° C)
1
Temperature Sensor 1
Temperature Sensor 2
Temperature Sensor 3
Temperature Sensor 4
Temperature Sensor 5
Temperature Sensor 6
Temperature Sensor 7
Temperature Sensor 8
Temperature Sensor 9
Temperature Sensor 10
Temperature Sensor 11
Drive Midplane Left
Drive Midplane Center
Drive Midplane Center
Drive Midplane Right
Drive Midplane Right
Upper I/O Module
Upper I/O Module
Lower I/O Module
Lower I/O Module
Power Supply 0
< 32° F (0° C) or > 131° F
(55° C)
2
< 32° F (0° C) or > 131° F
(55° C)
3
< 32° F (0° C) or > 131° F
(55° C)
4
< 32° F (0° C) or > 131° F
(55° C)
5
< 32° F (0° C) or > 131° F
(55° C)
6
< 32° F (0° C) or > 140° F
(60° C)
7
< 32° F (0° C) or > 140° F
(60° C)
8
< 32° F (0° C) or > 140° F
(60° C)
9
< 32° F (0° C) or > 140° F
(60° C)
10
11
< 32° F (0° C) or > 140° F
(60° C)
Power Supply 1
< 32° F (0° C) or > 140° F
(60° C)
Chapter 8 Troubleshooting Your Array 8-3
8.1.3
Voltage Sensors
Voltage sensors make sure that the array’s voltage is within normal ranges. The voltage
components differ for the SANnet II 200 FC, SATA, and SATA SE arrays. The
following tables describe each voltage sensor.
Table 8-3 Voltage Sensors for FC Arrays
Element
ID
Description
Location
Alarm Condition
0
Voltage Sensor 0 Left Power Supply (5V)
Voltage Sensor 1 Left Power Supply (12V)
< 4.00V or > 6.00V
1
< 11.00V or >
13.00V
2
3
Voltage Sensor 2 Right Power Supply (5V)
Voltage Sensor 3 Right Power Supply (12V)
< 4.00V or > 6.00V
< 11.00V or >
13.00V
4
5
6
Voltage Sensor 4 Upper I/O Module (2.5V Local) < 2.25V or > 2.75V
Voltage Sensor 5 Upper I/O Module (3.3V Local) < 3.00V or > 3.60V
Voltage Sensor 6 Upper I/O Module (Midplane
5V)
< 4.00V or > 6.00V
7
Voltage Sensor 7 Upper I/O Module (Midplane
12V)
< 11.00V or >
13.00V
8
Voltage Sensor 8 Lower I/O Module (2.5V Local) < 2.25V or > 2.75V
Voltage Sensor 9 Lower I/O Module (3.3V Local) < 3.00V or > 3.60V
9
10
Voltage Sensor
10
Lower I/O Module (Midplane
5V)
< 4.00V or > 6.00V
11
Voltage Sensor
11
Lower I/O Module (Midplane
12V)
< 11.00V or >
13.00V
Table 8-4 Voltage Sensors for SATA and SATA SE Arrays
Element
ID
Description
Location
Alarm Condition
0
Voltage Sensor 0
Voltage Sensor 1
Left Power Supply (5V)
Left Power Supply (12V)
< 4.86V or > 6.60V
1
< 11.20V or >
15.07V
2
3
Voltage Sensor 2
Voltage Sensor 3
Right Power Supply (5V)
Right Power Supply (12V)
< 4.86V or > 6.60V
< 11.20V or >
15.07V
8-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table 8-4 Voltage Sensors for SATA and SATA SE Arrays (Continued)
Element
ID
Description
Location
Alarm Condition
4
Voltage Sensor 4
Voltage Sensor 5
Voltage Sensor 6
Voltage Sensor 7
Voltage Sensor 8
Voltage Sensor 9
Upper I/O Module (1.8V)
Upper I/O Module (2.5V)
Upper I/O Module (3.3V)
Upper I/O Module (1.812V)
< 1.71V or > 1.89V
< 2.25V or > 2.75V
< 3.00V or > 3.60V
< 1.71V or > 1.89V
< 4.00V or > 6.00V
5
6
1
7
8
Upper I/O Module (Midplane 5V)
Upper I/O Module (Midplane 12V)
9
< 11.00V or >
13.00V
10
11
12
13
14
15
Voltage Sensor 10
Voltage Sensor 11
Voltage Sensor 12
Voltage Sensor 13
Voltage Sensor 14
Voltage Sensor 15
Lower I/O Module (1.8V)
Lower I/O Module (2.5V)
Lower I/O Module (3.3V)
< 1.71V or > 1.89V
< 2.25V or > 2.75V
< 3.00V or > 3.60V
< 1.71V or > 1.89V
< 4.00V or > 6.00V
Lower I/O Module (1.812V)
Lower I/O Module (Midplane 5V)
Lower I/O Module (Midplane 12V)
< 11.00V or >
13.00V
1. 5V on Rev 28 boards.
8.1.4
Power Supply Sensors
Each SANnet II 200 FC, SATA, and SATA SE array has two fully redundant power
supplies, with load sharing capabilities. The sensors monitor the voltage, temperature,
and fan units in each power supply.
Table 8-5 Power Supply Sensors for FC, SATA, and SATA SE Arrays
Element ID Description
Location
Alarm Condition
0
Left Power Supply 0
Left viewed from
the rear
Voltage, temperature,
or fan fault
1
Right Power Supply 1 Right viewed from
the rear
Voltage, temperature,
or fan fault
8.2
Silencing Audible Alarms
An audible alarm indicates that either a component in the array has failed or a specific
controller event has occurred. Error conditions and controller events are reported by
event messages and event logs. Component failures are also indicated by LED activity
on the array.
Chapter 8 Troubleshooting Your Array 8-5
Note – It is important to know the cause of the error condition because how you
silence the alarm depends on the cause of the alarm.
To silence the alarm, perform the following steps:
1. Check the error messages, event logs, and LED activity to determine the cause of the
alarm.
Component event messages include but are not limited to the following:
■
■
■
■
■
■
■
SES/PLD firmware mismatch
Temperature
Cooling element
Power supply
Battery
Fan
Voltage sensor
Caution – Be particularly careful to observe and rectify a temperature failure alarm. If
you detect this alarm, shut down the controller. Shut down the server as well if it is
actively performing I/O operations to the affected array. Otherwise, system damage
and data loss can occur.
Controller event messages include but are not limited to the following:
■
■
■
■
■
■
Controller
Memory
Parity
Drive SCSI Channel
Logical drive
Loop connection
Refer to the “Event Messages” appendix in the SANnet II Family RAID Firmware
User’s Guide for more information about controller events.
8-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2. Depending on whether the cause of the alarm is a failed component or a controller
event and which application you are using, silence the alarm as specified in the
following table.
Table 8-6 Silencing Alarms
Cause of Alarm
To Silence Alarm
Failed Component
Alarms
Use a paper clip to push the Reset button on the right ear of the array.
Controller Event
Alarms
Using the controller firmware: From the Main Menu, choose system
Functions →Mute beeper. Refer to the SANnet II Family RAID Firmware
User’s Guide fore more information.
Using SANscape: Refer to “Updating the Configuration” in the SANscape
User’s Guide for information about the Mute beeper command.
Using the SANscape CLI: Run mute [controller].
Refer to the SANscape CLI User’s Guide for more information.
Pushing the Reset button has no effect on controller event alarms and muting the
beeper has no effect on failed component alarms.
8.3
RAID LUNs Not Visible to the Host
Caution – When mapping partitions to LUN IDs, there must be a LUN 0. Otherwise,
none of the LUNs will be visible.
By default, all RAID arrays are preconfigured with one or two logical drives. For a
logical drive to be visible to the host server, its partitions must be mapped to host
LUNs. To make the mapped LUNs visible to a specific host, perform any steps
required for your operating system. For host-specific information about different
operating systems, see:
■
■
■
■
■
Appendix E for the Solaris operating system
Appendix F for Windows 200x Server or Windows 200x Advanced Server
Appendix G for a Linux server
Appendix H for an IBM server running the AIX operating system
Appendix I for an HP server running the HP-UX operating system
8.4
Controller Failover
Controller failure symptoms are as follows:
■
■
The surviving controller sounds an audible alarm.
The RAID Controller Status LED on the failed controller is amber.
Chapter 8 Troubleshooting Your Array 8-7
■
The surviving controller sends event messages announcing the controller failure of
the other controller.
A “Redundant Controller Failure Detected” alert message is displayed and written to
the event log.
If one controller in the redundant controller configuration fails, the surviving controller
takes over for the failed controller until it is replaced.
A failed controller is managed by the surviving controller, which disables and
disconnects from its counterpart while gaining access to all the signal paths. The
surviving controller then manages the ensuing event notifications and takes over all
processes. It remains the primary controller regardless of its original status, and any
replacement controller afterward assumes the role of the secondary controller.
The failover and failback processes are completely transparent to the host.
Controllers are hot-swappable if you are using a redundant configuration, and
replacing a failed unit takes only a few minutes. Since the I/O connections are on the
controllers, you might experience some unavailability between the times when the
failed controller is removed and a new one is installed in its place.
To maintain your redundant controller configuration, replace the failed controller as
soon as possible. For details, refer to SANnet II Family FRU Installation Guide.
8.5
Recovering From Fatal Drive Failure
With a redundant RAID array system, your system is protected with the RAID parity
drive and a global spare or spares.
A FATAL FAIL occurs when more drives fail than your RAID redundancy can
accommodate. The redundancy of your RAID array depends on your configuration. In
a RAID 3 or RAID 5 configuration, two or more drives than the number of spares
available must fail for a FATAL FAIL status. In a RAID 1 configuration, you can lose
multiple drives without fatal failure if all the failed drives consist of no more than one
drive from a mirrored pair.
It might be possible to recover the RAID from a FATAL FAIL. However, it might be
impossible to do a full data recovery, depending on the circumstances of the failure. It
is important to check your recovered data using the data application or host-based tools
following a FATAL FAIL recovery.
It is rare for two or more drives to fail at the same time. To minimize the chance of this
happening, regular RAID integrity checks should be performed. For RAID 3 and
RAID 5, this can be done using the firmware application “regenerate Parity” option, or
using the SANscape CLI command-line utility check parity. Refer to the SANnet
II Family RAID Firmware User’s Guide for details on the “regenerate Parity” option.
Refer to the SANscape CLI User’s Guide for details on the check parity
command-line utility.
8-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
If a double drive failure has occurred, it might be possible to recover by performing
the following steps:
1. Discontinue all I/O activity immediately.
2. To cancel the beeping alarm, from the controller firmware’s Main Menu, choose
system Functions →Mute beeper.
audible alarms.
3. Physically check that all the drives are firmly seated in the array and that none have
been partially or completely removed.
4. In the firmware Main Menu, choose view and edit Logical drives, and look for:
Status: FAILED DRV (one failed drive)
Status: FATAL FAIL (two or more failed drives)
5. Highlight the logical drive, press Return, and choose view scsi drives.
If two physical drives have a problem, one drive has a BAD status and one drive has a
MISSING status. The MISSING status is a reminder that one of the drives might be a
“false” failure. The status does not tell you which drive might be a false failure.
Caution – Resetting the controller invalidates the data still in write cache. Since it is
impossible to know whether data is in cache or has been written to disk, you should
not reset the controller. Instead, use the “Shutdown Controller” menu option and
choose Yes when the “Reset Controller?” prompt is displayed.
Note – Shutting down the controller does not guarantee absolute data integrity. It can,
however, restore most of the data, excluding whatever remains in cache when you reset
the controller.
6. From the Main Menu, choose system Functions →Shutdown Controller and then
choose Yes to confirm that you want to shut down the controller.
A status and confirmation message tells you that the controller shutdown is complete
and asks if you want to reset the controller.
7. Choose Yes to reset the controller.
8. Repeat Steps 4 and 5 to check the logical drive and physical drive status.
After resetting the controller, if there is a false bad drive, the array automatically starts
rebuilding the failed logical drive.
If the array does not automatically start rebuilding the logical drive, check the status
under view and edit Logical drives.
■
If the status is “FAILED DRV,” manually rebuild the logical drive. Refer to the
SANnet II Family RAID Firmware User’s Guide for more information.
Chapter 8 Troubleshooting Your Array 8-9
■
If the status is still “FATAL FAIL,” you might have lost all data on the logical drive,
and it might be necessary to re-create the logical drive. Proceed with the following
procedures:
a. Replace the failed drive.
Refer to the SANnet II Family FRU Installation Guide for more information.
b. Delete the logical drive.
Refer to the SANnet II Family RAID Firmware User’s Guide for more information.
c. Create a new logical drive.
Refer to the SANnet II Family RAID Firmware User’s Guide for more information.
Note – As physical drives fail and are replaced, the rebuild process regenerates the
data and parity information that was on the failed drive. However, the NVRAM
configuration file that was present on the drive is not re-created. For details on
restoring the NVRAM configuration file to the drive, refer to the SANnet II Family
RAID Firmware User’s Guide.
Rebuilding the logical drive restores the RAID integrity to a self-consistent state. This
does not guarantee that the data has not been corrupted. All possible application checks
should be performed to ensure that the data is not corrupted before it is used for
business or production purposes.
For additional troubleshooting tips, refer to the SANnet II 200 FC, SATA, and SATA SE
information.
8.6
Using the Reset Push Button
The Reset push button serves several purposes:
■
Tests that LEDs work
To test that the LEDs work, use a paper clip to press and hold the Reset button for
5 seconds. All the LEDs should change from green to amber when you perform this
test. Any LED that fails to light indicates a problem with the LED. When you
release the Reset button, the LEDs return to their initial state. See “Front-Panel
LEDs” on page 6-2 for more information.
■
Silences audible alarms caused by component failures
To silence audible alarms that are caused by component failures, use a paper clip to
information about silencing audible alarms.
■
Resets the array
8-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
8.7
Troubleshooting Flowcharts
This section provides troubleshooting flowcharts to illustrate common troubleshooting
methods.
The flowcharts included in this section are:
■
■
■
■
For information about replacing modules, refer to the SANnet II Family FRU
Installation Guide.
Caution – Whenever you are troubleshooting and replacing components, there is an
increased possibility of data loss. To prevent any possible data loss, it is a good idea to
back up user data to another storage device prior to troubleshooting your array.
8.7.1
Power Supply and Fan Module
The following flowchart provides troubleshooting procedures for the power supply and
fan module.
Chapter 8 Troubleshooting Your Array 8-11
1A
Notes
A fan can continue to spin normally even when a power supply has failed.
Power supply or fan problem
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good FRU from the same array.
Front panel
power LED
amber?
Check power
supply LEDs.
Yes
Replace chassis.
End
No
Is the LED
ribbon cable on the
right ear loose?
Secure the
ribbon cable.
Both green?
No
Yes
Yes
End
Power supply
cord plugged in?
No
Plug it in.
Resolved?
Turn it on.
Yes
No
Yes
End
No
Power supply
swiitch on?
No
Yes
Reseat the power
supply.
No
Resolved?
Yes
End
Replace the
Continue with
1B.
power supply with
known good power
supply.
Resolved?
No
Resolved?
Yes
No
Replace bad
power supply.
Yes
Continue with 1B.
End
End
Figure 8-2 Power Supply or Fan Module Flowchart, 1 of 2
8-12 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
1B
Power supply or fan problem
Power supply
module LED
amber?
Is the power
cord connected?
Yes
No
Plug it in.
Resolved?
No
Yes
End
Yes
Is the
power supply
Reseat the module
and turn on the
switch.
module completely
seated and the power
switch turned on?
No
Resolved?
No
Yes
End
Yes
No
Try a known
good power
supply module
in that slot.
Is the fan
spinning?
No
Resolved?
No
Yes
End
Yes
Replace chassis.
Notes
When a power supply fails the fans will continue to
operate because their power is pulled from a power bus
on the midplane.
Refer to
FRU Installation
Guide for
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
instructions.
Power supply is working
properly (green LED).
--Swap the questionable FRU with a known-good FRU
from the same array.
Figure 8-3 Power Supply or Fan Module Flowchart, 2 of 2
8.7.2
Drive LEDs
Before you perform the drive LED troubleshooting procedures, you might want to use
the firmware application to identify a failed drive. Refer to the SANnet II Family RAID
Firmware User’s Guide for more details.
Chapter 8 Troubleshooting Your Array 8-13
For overview information about drive LEDs and how they work, see “Front-Panel
You can check physical drive parameters using the firmware application. From the
firmware Main Menu, choose view and edit scsi drives. For more information about
the firmware application, refer to the SANnet II Family RAID Firmware User’s Guide.
Caution – When you rotate or replace drives, make sure that:
- All I/O is stopped.
- The “Periodic Drive Check Time” setting in the firmware application is set to
disabled (this is the default setting). This prevents automatic drive rebuild, which is not
recommended for live systems or troubleshooting.
To disable the Periodic Drive Check Time
1. From the Main Menu, choose view and edit Configuration parameters →Drive-side
SCSI Parameters →Periodic Drive Check Time.
A list of Periodic Drive Check Time intervals is displayed.
2. Select Disable.
A confirmation message is displayed.
3. Choose Yes to confirm.
Caution – To prevent any possible data loss, back up user data to another storage
device prior to replacing a disk drive.
The following flowchart provides troubleshooting procedures for the FC drive LEDs.
8-14 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2A
Drive LEDs problem (FC)
Power off.
Move drive to new slot.
Power on.
Check View and
Edit SCSI
drives menu.
Is only
one drive LED
amber?
Is drive
displayed?
Yes
No
Check drive to see if it is
displayed.
No
Yes
All drive
LEDs amber?
Does drive
show bad?
Rotate drive into
another slot.
Yes
Replace chassis.
No
Yes
Does problem
No
follow drive?
Refer to FRU
Installation Guide
for instructions.
No
Yes
No
Replace drive.
LED green?
Notes
Prior to replacing a chassis, try the following:
Yes
Continue with
2B
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good
FRU from the same array.
End
Figure 8-4 Drive LEDs Flowchart, 1 of 2
Chapter 8 Troubleshooting Your Array 8-15
2B
Drive LEDs problem (FC)
Remove the right end cap.
Refer to
FRU Installation
Guide for
Check that the Reset button is
not jammed.
All front panel
LEDs flashing
amber?
LEDs stop
flashing?
Replace chassis.
Yes
No
Check that LED ribbon cable in
right ear is not loose.
instructions
Replace the end cap.
Yes
No
End
Are all the
LEDs off during
operation?
Is the
power cord
well seated?
Is the power
Yes
Is the power
connected?
Yes
Yes
Yes
Resolved?
Yes
End
switch on?
No
No
No
Turn it on.
Connect it.
Seat it.
No
No
Is the LED
ribbon cable on the
right ear loose?
Secure the
ribbon cable.
Yes
No
Notes
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
Replace chassis.
--Swap the questionable FRU with a known-good
FRU from the same array.
End
Figure 8-5 Drive LEDs Flowchart, 2 of 2
For more information about checking and replacing drive modules, refer to the SANnet
II Family FRU Installation Guide.
8.7.3
Front-Panel LEDs
The following flowchart provides troubleshooting procedures for the SANnet II 200
FC, SATA, and SATA SE array front-panel LEDs.
Note – The LED ribbon cable referred to in this flowchart is the white cable that
connects the front-panel LEDs to the midplane. It is located on the right front-panel ear
and is directly attached to the LEDs.
8-16 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
3A
Front panel LEDs problem (FC)
Adjust end cap to ensure
reset button is not depressed.
Remove the right end cap.
All
front panel
LEDs flashing
amber?
Check that the Reset button
is not jammed.
Yes
Check that LED ribbon cable
in right ear is not loose.
Replace the end cap.
Refer to
FRU Installation
Guide for
No
LEDs stop
flashing?
No
Replace chassis.
instructions
Yes
End
Are all the
LEDs off during
operation?
Is the
power cord
well seated?
Is the power
Yes
Is the power
connected?
Yes
Yes
Yes
Resolved?
Yes
End
switch on?
No
No
No
Turn it on.
Connect it.
Seat it.
No
No
Is the LED
ribbon cable on the
right ear loose?
Secure the
ribbon cable.
Yes
No
Notes
Prior to replacing a chassis, try the following:
Continue with
3B.
--Reseat the FRU that is not operating correctly.
Replace chassis.
--Swap the questionable FRU with a known-good
FRU from the same array.
Figure 8-6 Front-Panel LEDs Flowchart, 1 of 4
Chapter 8 Troubleshooting Your Array 8-17
3B
Front panel LEDs problem (FC)
Front
Are both
panel
Are the
power cords
well
Is either
power/cooling
FRU LED
amber?
power
Is the power
connected?
Yes
Yes
Yes
Yes
Yes
power
LED
amber?
Replace FRU.
switches
on?
seated?
No
No
No
Turn them
on.
Connect
them.
End
Seat them.
No
No
Front
Is either
power/cooling
FRU LED
amber?
Is the LED
ribbon cable on the
right ear loose?
panel fan
Yes
Yes
Yes
Replace FRU.
LED
amber?
No
Secure the ribbon
cable.
End
Replace chassis.
No
No
Is the LED
ribbon cable on
the right ear
loose?
Secure the
ribbon cable.
Yes
End
End
No
Replace chassis.
Notes
Prior to replacing a chassis, try the following:
Continue with
3C.
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good
FRU from the same array.
End
End
Figure 8-7 Front-Panel LEDs Flowchart, 2 of 4
8-18 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
3C
Front panel LEDs problem (FC)
Is the
ambient
temp. within
environmental
limits?
Check
Go to 3D.
Is Temp LED
amber?
Is Fan
LED amber also?
temperature
in Event Log
messages.
Yes
No
No
Yes
Yes
Check that LED
ribbon cable in
right ear is not
loose.
Follow procedure
for "Fan LED
amber?" on 9B.
No
No
Resolved?
Resolved?
No
Replace chassis.
Yes
Yes
End
End
Check for any
amber LEDs in
back panel.
Is event LED
amber?
Yes
I/O
Controller
module LED
amber?
Battery module
LED amber?
No
No
Notes
Yes
Yes
55 degrees Celsius equals 131 degrees
Fahrenheit.
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
Go to 4A.
Replace battery
module.
--Swap the questionable FRU with a known-good
FRU from the same array.
End
Figure 8-8 Front-Panel LEDs Flowchart, 3 of 4
Chapter 8 Troubleshooting Your Array 8-19
Notes
3D
55 degrees Celsius equals 131 degrees
Fahrenheit.
Front panel LEDs problem (FC)
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good
FRU from the same array.
Verify the air
conditioning is
working properly.
Fix if needed.
Temp LED
No
Ensure adequate
ventilation.
Resolved?
No
Yes
End
Resolved?
Check that LED
ribbon cable in right
ear is not loose.
Yes
End
Resolved?
No
Yes
Replace controller
that reported over
temperature error.
Resolved?
Yes
End
No
Replace chassis.
End
Figure 8-9 Front-Panel LEDs Flowchart, 4 of 4
8-20 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
8.7.4
I/O Controller Module
The following flowchart provides troubleshooting procedures for the I/O controller
module.
4A
I/O controller module problem (FC)
Replace
SFP with known
good SFP.
Try a
known good
HBA.
SFP Link LED
amber?
Replace
the cable.
Replace I/O
controller module.
Yes
No
No
No
Resolved?
Resolved?
Resolved?
No
Yes
Yes
Yes
End
End
End
Power off.
Check event
messages in
firmware or software
messages.
Replace I/O controller
module.
RAID controller
status amber?2
Place known good I/O
controller module in slot.
Yes
Power on.
No
Yes
Yes
Resolved?
Yes
Resolved?
End
Message
"Controller has
failed" is
displayed?
No
No
Replace chassis.
End
No
Pull battery
module and
reseat it.
Battery LED
solid amber?
Yes
Replace battery.
Notes
Fibre Channel arrays use small form-factor
(SFP) connectors to attach the array to hosts
and expansion units. Each Fibre Channel I/O
controller module has six SFP ports. These
ports are labeled FC0 through FC5.
No
Resolved?
No
Yes
Replace battery module if it is close to the 2
year life limit.
.
Yes
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good
FRU from the same array.
End
End
End
Figure 8-10 I/O Controller Module Flowchart
Chapter 8 Troubleshooting Your Array 8-21
8-22 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
A
APPENDIX
SANnet II 200 FC, SATA, and SATA SE Array
Specifications
This appendix provides the specifications for the SANnet II 200 FC, SATA, and SATA
SE arrays. The topics covered are:
■
■
■
A.1
Physical Specifications
Table A-1 SANnet II 200 FC, SATA, and SATA SE Array Physical Specifications
Description
Height
Desktop
Rackmount
3.64 in. / 9.25 cm
19 in. / 48.26 cm
Main chassis 18 in. / 45.72 cm
2U (3.45 in. / 8.76 cm)
17.56 in. / 44.60 cm (body)
Main chassis 18 in. / 45.72 cm
Width
Depth
To back of power supply:
20 in. / 50.8 cm
To back of power supply:
20 in. / 50.8 cm
To back of power supply handle: 21 To back of power supply handle: 21
in. / 53.34 cm
in. / 53.34 cm
Weight (fully loaded FC
array)
63 lb / 28.6 kg with 36-GB drives
60.3 lb / 27.4 kg with 73-GB drives 64.3 lb / 29.2 kg with 73-GB drives
61.3 lb / 27.8 kg with 146-GB drives 65.3 lb / 29.6 kg with 146-GB drives
67 lb / 30.4 kg with 36-GB drives
A-1
Table A-1 SANnet II 200 FC, SATA, and SATA SE Array Physical Specifications (Continued)
Description
Desktop
Rackmount
Weight (fully loaded FC
expansion unit)
56.6 lb / 25.7 kg with 36-GB drives 60.6 lb / 27.5 kg with 36-GB drives
53.9 lb / 24.4 kg with 73-GB drives 57.9 lb / 26.3 kg with 73-GB drives
54.9 lb / 24.9 kg with 146-GB drives 58.9 lb / 26.7 kg with 146-GB drives
Weight (fully loaded SATA 59 lb / 26.8 kg with 250-GB drives
63 lb / 28.6 kg with 250-GB drives
array) 61.6 lb / 27.9 kg with 400-GB drives 65.6 lb / 29.8 kg with 400-GB drives
Weight (fully loaded SATA 52.6 lb / 23.9 kg with 250-GB drives 56.6 lb / 25.7 kg with 250-GB drives
expansion unit)
55.2 lb / 25 kg with 400-GB drives
59.2 lb / 26.9 kg with 400-GB drives
Note – Add 12.75 lb (5.8 kg) for packaging if you want to know the shipping weight
of an array or expansion unit.
A.2
SANnet II 200 FC, SATA, and SATA SE Array
Highlights
Table A-2 SANnet II 200 FC, SATA, and SATA SE Array Highlights
Feature
Description
General
• Up to 12 hot-pluggable drives in a 2U (3.45 in. / 8.76 cm high) chassis
• Autosensing AC or DC power supplies
• Dual-host access in certain configurations
A-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table A-2 SANnet II 200 FC, SATA, and SATA SE Array Highlights (Continued)
Feature
Description
Density
• Up to 1752 GB in a RAID array (with 146-GB drives)
• Up to 4800 GB in a RAID array (with 400-GB drives)
• 21 in. (53.34 cm) chassis depth
• SANnet II 200 FC RAID supports up to eight expansion units
• SANnet II 200 SATA RAID supports up to five expansion units
• SANnet II 200 SATA SE RAID does not support expansion units
Reliability
• Redundant hot-swappable FRUs
• Single or redundant active/active hot-swappable RAID controllers
• N+1 hot-swappable power and cooling
• NEBS Level 3 and HALT test certified; designed to meet 99.999% reliability
RAID System
• Web-based 10/100BASE-T Ethernet support
Storage Resource • Serial port out-of-band support with modem control
Management
• RAID Levels 0, 1, 1+0, 3, 3+0, 5, and 5+0
• Up to 1024 LUNs
• SNMP traps and MIB in firmware
• 1-GB cache memory standard
• 256-GB cache memory standard for SANnet II 200 SATA SE arrays
• SANnet II 200 FC arrays include four channels that are user configurable as
drive or host channels and two channels are dedicated drive channels
• SANnet II 200 SATA arrays include two channels that are user configurable as
drive or host channels, two channels that are dedicated drive channels, and two
channels that are dedicated host channels
• SANnet II 200 SATA SE arrays include six channels that are dedicated host
channels
• Support for SANscape and Diagnostic Reporter management software
The following topics briefly describe specific hardware and firmware features.
A.2.1
A.2.2
Hardware Loop ID
Each device communicating on an arbitrated loop requires an AL_PA, the Arbitrated
Loop Physical Address. The host Fibre Channel supports a single hard loop ID in the
range from 0 to 125. The drive channel allows up to 125 devices to be connected to a
single loop.
The controller supports automatic loop ID assignment on the drive channel. A hard
loop address ID is assigned to the disk drives by setting the radial switch.
Firmware Host-Side Connection Mode
The controller default is Loop Only in Host-side Parameters.
Appendix A SANnet II 200 FC, SATA, and SATA SE Array Specifications A-3
A.2.3
Firmware LUN Filtering (RAID-Based Mapping)
LUN filtering is a method used for separating and controlling access to data from the
RAID controller. One major benefit of Fibre Channel is the capability to share a
common storage pool with multiple servers or workstations. However, allocation
becomes an issue when every server in a network can access the data in a logical drive.
LUN filtering provides a means for controlling data access if data is not allowed for
every server.
When you map a logical drive to a host LUN through the firmware application, you
can create a mapping according to the worldwide port names (WWPN) that are
specific to each host adapter. A LUN mask can then be created as an access filter for
including or excluding host adapters from addressing specific storage unit. A host map
is composed of an ID range that is configured to include one or more IDs. A host
adapter can be identified by its ID (device-specific port names) as included or
excluded from range. The LUN mask is also defined with a filter type as read only or
read/write.
A.2.4
Firmware Redundant Loops
The selection of “drive-side dual-loop” is fixed. Since two channels are used to
connect a group of physical drives, the two channels automatically assume the same ID
address and operate in duplex mode.
A.2.5
Firmware Dynamic Load Balancing
The controller provides a mechanism to equally distribute I/O loads between channels
in a redundant loop configuration.
A.3
Agency Approvals and Standards
Table A-3 SANnet II 200 FC, SATA, and SATA SE Array Product Safety & Electromagnetic
Standards
Product Safety
Country
Standard
U.S.
UL Listed to UL60950:2000, 3rd Edition
CSA Standard CAN/CSA-C22.2 No. 60950-00 3rd Edition
TÜV
Canada
Germany
European Union
Japan
EN 60950:2000
Part of World-wide CB Scheme
A-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table A-3 SANnet II 200 FC, SATA, and SATA SE Array Product Safety & Electromagnetic
Standards (Continued)
Product Safety
Australia
Argentina
Germany
Russia
Standard
Part of World-wide CB Scheme
Resolution 92-98 (S-Mark)
GS mark (ergonomics) (Rheinland)
Part of World-wide CB Scheme (GOST-R mark)
Hygienic Mark (ergonomics)
Russia
Electromagnetic Compatibility
Standard
Country
U.S.
FCC #47, Part 15, Subpart B, Class B
ICES-003
Canada
Japan
VCCI Class B
European Union
Australia/New Zealand
Taiwan
EN 55022:1998 Class B
AS/NZS 3548:1996
BSMI CNS 13438 Class B
GOST-R mark
Russia
Germany
Same as European Union
S mark
Argentina
Electromagnetic Interference
Test
Standard
Harmonics Emissions
Voltage Flicker
ESD
EN 61000-3-2:2000 (No Limits)
EN 61000-3-3:1995/A1:2001 (No Limits)
EN 55024 (8kV Contact, 15kV Air)
EN 55024 (10V/m)
RF Field
Electrical Fast Transient Burst
Surge
EN 55024 (1kV I/O, 2kV Power)
EN 55024 (1kV I/O, 1kV Power L-L, 2kV Power L-G)
EN 55024 (3V I/O and Power)
EN 55024 (N/A monitors only)
EN 55024 (0V/0.5cycle, 70%V/0.5sec, 0V/5sec)
RF Conducted
Power Frequency Magnetic Field
Voltage Dip and Interruption
Appendix A SANnet II 200 FC, SATA, and SATA SE Array Specifications A-5
A-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
B
Using a Standalone JBOD Array (SANnet II
200 FC Array Only)
A single SANnet II 200 FC JBOD array can be connected directly to certain Solaris
operating system hosts. This appendix describes the use of SANnet II 200 FC JBOD
arrays.
Note – SANnet II 200 SATA and SATA SE configurations do not support the use of
JBOD arrays.
The topics covered in this appendix are:
■
■
■
■
■
■
■
■
■
■
■
■
B.1
Supported Configurations (JBOD Arrays)
A SANnet II 200 FC JBOD array can be attached directly to a single host computer
using either single-port or dual-port configurations. See “Single-Port Connection to a
B-1
B.2
B.3
Supported Operating Systems (JBOD Arrays)
The SANnet II 200 FC JBOD array can be used with currently released versions of the
Solaris 8, Solaris 9, and Solaris 10 operating systems.
Supported Host Platforms and Connection
Methods (JBOD Arrays)
Table B-1 lists the Sun systems that are supported by the JBOD array. The table also
shows the connection methods supported for each of the supported Sun systems.
Supported HBAs include (X)6767A 2-Gbit PCI Single FC HBA and (X)6768A 2-Gbit
PCI Dual FC HBA.
Table B-1 Supported Sun Servers and Connection Methods (JBOD Arrays)
Server
HBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Sun Enterprise™ 220R server
Sun Enterprise 250 server
Sun Enterprise 420R server
Sun Enterprise 450 server
Sun Fire™ V120 server
Sun Fire V280 server
Sun Fire V880 server
B.4
Known Limitations Affecting SANnet II 200 FC
JBOD Arrays
Limitations affecting the FC JBOD array are listed below.
■
■
Booting from a JBOD disk is not supported in this release.
The mpxiofunctionality of Sun StorEdge SAN Foundation Suite 4.2 software is not
supported with FC JBOD arrays.
■
■
■
■
Only Sun hosts running the Solaris operating system are supported in this release.
Sun Cluster software is not supported in this release.
VERITAS Cluster Server (VCS) software is not supported in this release.
Only direct-attached single-host connections to a single JBOD are supported in this
release. There is no multihost support in this release. Fibre Channel switches are not
supported in this release. Daisy-chaining is not supported in this release.
■
The luxadmutility should not be used to diagnose or manage FC JBOD arrays.
B-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
■
SANscape software supports FC JBOD arrays. However, since FC JBOD arrays do
not have a RAID controller to manage the disks, this software support is necessarily
limited. Monitoring functionality that does not require a RAID controller works the
same way it does for RAID arrays. See “Using SANnet II Family Software
specific information.
■
■
Similarly, SANscape Alert support for standalone JBOD arrays is limited to
functionality that can work without a RAID controller.
The SANscape CLI supports SANnet II 200 FC JBOD arrays. However, because
SANnet II 200 FC JBOD arrays do not have a RAID controller to manage the disks,
this support is limited.
Refer to the “Monitoring JBODs” appendix in the SANscape CLI User’s Guide for
more information about using these commands.
B.5
Using SANnet II Family Software Monitoring
and Management Tools with JBOD Arrays
The following software management tools are provided with your array. The
documentation CD provides the related user guides.
■
■
■
SANscape. Provides centralized storage configuration, maintenance, and monitoring
functions. Refer to the SANscape User’s Guide for in-band setup procedures.
SANscape Alert. Provides event monitoring and notification. Refer to the SANscape
Alert User’s Guide for more information.
SANscape Command-Line Interface (CLI). A command-line interface utility that
provides script-based management. Refer to the SANscape CLI User’s Guide for
more information.
For details on how to install SANscape, SANscape Alert, or SANscape CLI software,
refer to the SANscape Software Installation Guide.
B.5.1
SANscape
SANscape supports all SANnet II arrays. It also supports, to a limited degree,
standalone SANnet II 200 FC JBOD arrays. Since standalone JBOD arrays do not have
a RAID controller to manage the disks, this software support for JBODs is limited to
the following functions:
■
■
■
viewing component and alarm characteristics
upgrading firmware on hard drives
upgrading firmware on SAF-TE devices
Refer to the “Monitoring JBODs” appendix in the SANscape User’s Guide for
information about using these functions with JBOD arrays.
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-3
B.5.1.1
Enabling JBOD Support
To monitor peripheral device conditions and events on a SANnet II 200 FC JBOD
array from SANscape, you first need to enable JBOD support. See “Enabling SANnet
II 200 FC JBOD Array Support” on page B-10 for the procedure for enabling JBOD
support.
B.5.2
B.5.3
SANscape Alert
SANscape Alert supports standalone JBOD arrays. However, triggered event
notification is limited to environmental failures and hard drive failures.
SANscape CLI
The SANscape CLI supports JBOD arrays. However, because JBOD arrays do not
have a RAID controller to manage the disks, this support is limited to the following
commands:
■ about
■ download pld-firmware
■ download ses-firmware
■ exit
■ help
■ quit
■ select
■ show access-mode
■ show configuration
■ show enclosure-status
■ show frus
■ show inquiry-data
■ show pld-revision
■ show ses-devices
■ version
Refer to the SANscape CLI User’s Guide for information about using these commands.
B.6
Setting the Loop ID on a SANnet II 200 FC
JBOD Array
When a SANnet II 200 FC JBOD array is directly attached to a host, unique, hard-
assigned loop IDs are assigned to each drive in the JBOD array. A loop ID is the
decimal version of an AL_PA. The lowest number loop ID is the lowest priority
address on the loop.
An ID switch on the left front side of a SANnet II 200 FC JBOD array, underneath the
left chassis ear, is used to set loop IDs for the disk drives to different ranges of values.
B-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Press to change the ID number
Figure B-1 ID Switch
By default, the ID switch on all SANnet II 200 FC JBOD arrays is set to 1 so the range
of IDs is automatically 16 to 31. You can leave the ID switch set to 1, or set it for
whichever range of IDs you prefer.
The ID switch offers eight ID ranges. Each set contains 16 IDs. The last 4 IDs in each
range are ignored. These ranges are shown in Table B-2.
Table B-2 ID Switch Settings for SANnet II 200 FC JBOD Arrays
ID Switch Setting Range of IDs
0
1
2
3
4
5
6
7
0–15
16–31
32–47
48–63
64–79
80–95
96–111
112–125
B.6.1
Changing Your ID Switch Setting
Perform the following steps to change your ID switch setting:
1. Remove the bezel (the front faceplate).
instructions for removing and replacing the front bezel and ear caps.
Caution – The plastic ear covers are snap-on parts that require care when you remove
them. If you remove the right plastic ear cap, take care to avoid breaking the Reset
push button directly below the ear cap.
2. Remove the left plastic ear cap from the front of the chassis.
3. Use the buttons to change the ID number.
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-5
Caution – The loop ID should only be changed while the JBOD array is powered off
or not in use. After changing the loop ID, a power cycle is required to make the ID
switch change take effect. Failure to cycle the power following an ID switch change
can lead to unexpected results.
4. Reattach the plastic ear cap and the bezel on the front of the chassis.
B.7
Connecting SANnet II 200 FC JBOD Arrays
You can connect a SANnet II 200 FC JBOD array directly to a host server. Use your
standard host system disk management utilities for management of disks in a SANnet
II 200 FC JBOD array, such as partitioning and formatting. Refer to your host system
documentation for more information about disk management.
There are two ways to verify that you have a SANnet II 200 FC JBOD array (or
expansion unit) rather than a SANnet II 200 FC RAID array:
■
Check the back panel. The back panel of the SANnet II 200 FC JBOD resembles the
of the SANnet II 200 FC RAID array.
■
Remove the front bezel and look at the labels on the bottom lip of the chassis. If you
have a SANnet II 200 FC JBOD array, one label contains this designation:
3510 AC JBOD (alternating current model) or 3510 DC JBOD (direct current model).
B.7.1
Single-Port Connection to a SANnet II 200 FC
JBOD Array
You can connect a SANnet II 200 FC JBOD array to an FC port, a port on a single-port
II 200 FC JBOD array with 12 drives, connected to a host computer over a single loop
to a single FC port. In this example, the port is one of a pair of ports on a dual-port
HBA.
B-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Host computer
JBOD array
Figure B-2 SANnet II 200 FC JBOD Array Attached to a Single HBA Port
In this example, if the loop ID switch is set to 0, the formatcommand shows 12
drives on this loop, ranging from c1t0d0to c1t11d0.
Table B-3 Example of 12 Drives Shown on a 12-Disk SANnet II 200 FC JBOD
Array Connected to a Host Over a Single FC Loop
Drive Identifier
c1t0d0 c1t3d0 c1t6d0 c1t9d0
c1t1d0 c1t4d0 c1t7d0 c1t10d0
c1t2d0 c1t5d0 c1t8d0 c1t11d0
The drive identifiers are arranged in four columns of three drives each to reflect the
physical location of these drives in the JBOD. They correspond to the locations of
Disk 0 through Disk 11.
B.7.2
Dual-Port Connections to a SANnet II 200 FC
JBOD Array
You can also connect a SANnet II 200 FC JBOD array to both ports on a dual-port
HBA, ports on two single-port HBAs, or a port on a single-port HBA and a single port
on a dual-port HBA.
Use host-based multipathing software such as VERITAS DMP 3.2 or 3.5 software to
manage SANnet II 200 FC JBOD arrays connected to a host over more than one loop.
Multipathing software provides full services on multiple paths between the server and
the storage system.
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-7
Figure B-3 shows an example of a SANnet II 200 FC JBOD array with 12 drives,
connected to a host computer over two loops to two FC ports. In this example, both
ports are on dual-port HBAs.
Host computer
JBOD array
Figure B-3 SANnet II 200 FC JBOD Array Attached to Two HBA Ports
When you connect your SANnet II 200 FC JBOD array to a host over two loops, the
formatcommand shows 24 drives, 12 on each loop, because the host sees a device
entry for each path. If the loop switch ID is set to 0, these drives are identified as
ranging from c1t0d0to c1t11d0and from c2t0d0to c2t11d0,as shown in
Table B-4. However there are, of course, still only 12 physical drives in the JBOD
array. These drives are arranged in four columns of three drives each, as shown in
B-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Table B-4 Example of 24 Drives Shown on a 12-Disk SANnet II 200 FC JBOD
Array Connected to a Host Over Two FC Loops
Drive Identifier (First Loop) Drive Identifier (Second Loop)
c1t0d0
c1t1d0
c1t2d0
c1t3d0
c1t4d0
c1t5d0
c1t6d0
c1t7d0
c1t8d0
c1t9d0
c1t10d0
c1t11d0
c2t0d0
c2t1d0
c2t2d0
c2t3d0
c2t40d0
c2t5d0
c2t6d0
c2t7d0
c2t8d0
c2t9d0
c2t10d0
c2t11d0
Caution – Be careful not to mount the same drive twice if you are not using
multipathing software.
B.7.3
B.7.4
Changing Your SFP Configuration on JBOD Arrays
SANnet II 200 FC JBOD arrays use SFP connectors to attach to Fibre Channel ports
on your host computer. You might need to move or add one or more SFP connectors to
your SANnet II 200 FC JBOD array to connect it to your host computer.
■
To make connections to an empty port, first slide the SFP connector into the port so
that it connects firmly with the chassis. Then plug the fiber-optic cable’s SFP
connector into the duplex jack at the end of the SFP.
■
To remove an SFP connector, make sure no cable is connected to it and then slide it
out from the port.
Connecting the SANnet II 200 FC JBOD Array to a
Host Computer
Use fiber-optic cables to connect one or two HBA ports on the host computer to the
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-9
1. Connect a fiber-optic cable to an HBA.
2. Set your loop IDs using the ID switch on the JBOD array.
Caution – The loop ID should only be changed while the JBOD array is powered off
or not in use. After changing the loop ID, a power cycle is required to make the ID
switch change take effect. Failure to cycle the power following an ID switch change
can lead to unexpected results.
3. Connect the SFP connector at the other end of each of these fiber-optic cables to host
channel SFP connectors on the back of the JBOD array.
4. Power up the equipment in the following order, so that the host computer discovers all
connected arrays:
a. SANnet II 200 FC JBOD array
b. Host computer
5. Use your host system disk management utilities to prepare the disks in the SANnet II
200 FC JBOD array for use.
Refer to your host system documentation for more information about disk management
utilities available to you.
B.8
Enabling SANnet II 200 FC JBOD Array
Support
For SANnet II 200 FC JBOD arrays, configure JBOD support only when you have a
JBOD array connected directly to a host. This enables you to monitor peripheral device
conditions and events. If you have an expansion unit connected to a RAID array, the
RAID controllers monitor the expansion unit’s conditions and events for you.
Note – Enabling JBOD support can impact I/O performance.
To monitor peripheral device conditions and events on a SANnet II 200 FC JBOD
array from the SANscape console, you first must enable JBOD support.
1. Choose View →Agent Options Management.
The Agent Options Management window is displayed.
2. Select the Enable JBOD Support checkbox.
3. To immediately display the JBOD array in the main window, choose View →View
Server and click Probe to probe for new inventory.
B-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
4. Click OK.
The JBOD array is displayed in the main window.
In a single-bus configuration, both ports of the JBOD array are connected to one HBA
on the server, as shown in the following example:.
In a split-bus configuration, each port is connected to its own HBA, as shown in the
following example:
B.9
Downloading Firmware to Disk Drives in a
JBOD
For instructions on how to download firmware to disk drives in a JBOD directly
attached to a host, refer to the README file in the patch that contains the firmware.
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-11
B.10
Resizing LUNs Greater Than 1 Tbyte
When a LUN is created larger than 1 Tbyte, the Solaris operating system identifies the
LUN as an EFI drive. If the LUN is later rebuilt to less than 1 Tbyte, it retains the EFI
label. If you want the LUN to revert back to SMI labeling, the format -e |
labelcommand is required.
To relabel a LUN to less than 1 Tbyte, perform these steps:
Note – In this example, the LUN being relabeled is c1t2d3.
1. Type the formatcommand in a terminal window:.
# format -e devicename
2. At the format> prompt, type label.
# format -e c1t2d3
format> label
Two menu items are displayed and you are prompted to choose between them:
# format -e c1t2d3
format> label
[0] SMI Label
[1] EFI Label
Specify Label type[0]:
3. Select option 0 (SMI).
Specify Label type[0]: 0
4. Respond to the on-screen prompts to relabel the device.
B.11
Troubleshooting SANnet II 200 FC JBOD
Arrays
This section describes troubleshooting procedures and error messages you can use to
isolate configuration and hardware problems. For additional troubleshooting
B-12 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
B.11.1
B.11.2
Troubleshooting Configuration Issues
Follow this sequence of general steps to isolate software and configuration issues.
1. Look for storage-related messages in /var/adm/messagesand identify any suspect
SANnet II 200 FC JBOD arrays and fibre loops.
2. Check your SANscape console for alerts or messages.
3. Check revisions of software package, patches, and hardware.
4. Verify correct device file paths.
Troubleshooting Hardware Issues
When a problem is not otherwise reproducible, suspect hardware might need to be
replaced. Always make only one change at a time and carefully monitor results. When
possible, it is best to restore the original hardware before replacing another part to
eliminate the introduction of additional unknown problem sources.
After hardware replacement, a problem can usually be considered solved if it does not
resurface during a period equal to twice its original frequency of occurrence. For
example, if a problem was occurring once a week on average before a potential fix was
made, running two weeks without seeing the problem again suggests a successful fix
took place.
Troubleshooting hardware problems is usually accomplished by an FRU isolation
sequence that uses the process of elimination. Set up a minimal configuration that
shows the problem and then replace elements in this order, testing after each
replacement until the problem is solved:
1. Replace the cables.
2. Replace the SFPs.
3. Replace the drives.
4. Replace the HBAs.
Often you can also find out what does cause a hardware problem by determining the
elements that do not cause it. Start out by testing the smallest configuration that does
work, and then keep adding components until a failure is detected.
To view error messages reported by JBODs or expansion units, use any of the
following:
■
Message log in the operating system
■
■
■
For Solaris, var/adm/messages
For Linux, var/log/messages
For Microsoft Windows, use the event viewer
■
SANscape event log
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-13
■
■
SANscape CLI event log
For expansion units, the RAID firmware event log
For more information about replacing the chassis, I/O module, or controller, refer to
the SANnet II Family FRU Installation Guide.
Caution – When you rotate or replace drives, make sure that:
- All I/O is stopped.
- The Periodic Drive Check Time setting in the firmware application is set to disabled
(this is the default setting). This prevents automatic drive rebuild, which is not
recommended for live systems or troubleshooting.
To disable the Periodic Drive Check Time:
1. From the Main Menu, choose view and edit Configuration parameters →Drive-side
SCSI Parameters →Periodic Drive Check Time.
A list of Periodic Drive Check Time intervals is displayed.
2. Select Disable.
A confirmation message is displayed.
3. Select Yes to confirm.
Caution – Whenever you are troubleshooting your array or replacing components,
there is an increased possibility of data loss. To prevent any possible data loss, back up
user data to another storage device prior to replacing a disk drive or any other
component.
Before you begin troubleshooting a JBOD or expansion unit, check the cables that
connect the host to the JBOD or expansion unit. Look for bent pins, loose wires, loose
cable shields, loose cable casing, and any FC cables with 90 degree or more bends in
them. If you find any of these conditions, replace the cable.
The Figure B-4 flowchart provides troubleshooting procedures specifically for JBODs
and expansion units. For additional troubleshooting flowcharts, see “Power Supply and
B-14 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
5A
JBOD or expansion unit problem (FC)
Switch drive with
known
drive from another
slot.
Is the
drive light
green in new
slot?
Replace
drive with known-
good drive.
Drive light
amber?
Replace drive
again.
Yes
Resolved?
No
No
Yes
Yes
No
End
Is the
drive light
green in the
original slot?
Yes
End
Check event
messages in
firmware or software.
Go to 11B
I/O expansion
module LED
amber
Yes
No
Replace chassis.
End
No
Check for
proper
cabling.
Replace SFP
with
known good one.
Yes
SFP link status
amber?2
Replace
cable.
1
No
No
Connect
to known
Resolved?
Resolved?
No
Resolved?
good HBA.
Yes
Yes
Yes
No
Replace I/O
expansion
module.
End
End
End
Resolved?
No
Notes
To check cabling, look for bent pins, loose wires,
loose cable shielding, or loose cable casing.
Yes
Fibre Channel arrays use SFP connectors to
attach the array to hosts and expansion units.
Each Fibre Channel I/O expansion module has
two SFP ports. These ports are labeled Loop A or
Loop B.
End
End
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good
FRU from the same array.
Figure B-4 JBOD or Expansion Unit Troubleshooting Flowchart, 1 of 2
Appendix B Using a Standalone JBOD Array (SANnet II 200 FC Array Only) B-15
5B
JBOD or expansion unit problem (FC)
Has a
controller failure
occurred?
Replace
I/O expansion
module.
Possible midplane
failure.
Replace chassis.
Yes
Resolved?
No
Yes
No
End
End
Has a
data error
occurred?
Yes
Correct data error.
End
No
Switch controller with
know good controller.
Resolved?
Yes
End
No
Replace chassis.
Notes
Prior to replacing a chassis, try the following:
--Reseat the FRU that is not operating correctly.
--Swap the questionable FRU with a known-good
FRU from the same array.
End
Figure B-5 JBOD or Expansion Unit Troubleshooting Flowchart, 2 of 2
B.12
Converting a JBOD to a RAID array
You can convert an FC JBOD (or expansion unit) into a single-controller or dual-
controller FC RAID array. For instructions on how to do this, refer to the SANnet II
Family FRU Installation Guide.
B-16 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
C
Failed Component Alarm Codes
This appendix describes failed component alarm codes.
Failed component alarm codes use Morse code dot and dash characters. The dot “.” is
a short tone sounding for one unit of time. The dash “-” is a long tone sounding for
three units of time.
Alarms, also referred to as beep codes, are presented in a sequence, starting with the
critical component failure alarm, which alerts you to a component problem or failure
or a firmware mismatch. This alarm is then followed by alarms for whichever
components or assemblies have failed. Once the beep code sequence is complete, it
repeats. To understand the beep codes, listen to the sequence of codes until you can
break down the sequence into its separate alarms. You can also check your software or
firmware for alarms, error messages, or logs to isolate and understand the cause. For
example, in the case of a fan failure in a power supply, you might first hear the critical
component failure alarm, followed by a power supply failure alarm from power supply
0 or power supply 1, followed by a fan failure event alarm. This sequence continues to
repeat.
Table C-1 Failed Component Alarm Codes
Morse Code Sound
Failure
Morse Code Letter
Pattern
Critical component
failure or mismatch
8 dashes
--------
Power supply 0 failure
Power supply 1 failure
Event alarm
P0
P1
E
. -- . -----
. -- . . ----
.
Fan failure
F
. . - .
. . . -
-
Voltage failure
V
T
Temperature failure
SES/PLD firmware
mismatch
R
. - .
C-1
firmware mismatch mentioned in Table C-1.
Caution – Be particularly careful to observe and rectify a temperature failure alarm. If
you detect this alarm, shut down the controller and the server as well if it is actively
performing I/O operations to the affected array. Otherwise, system damage and data
loss can occur.
C-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
D
Cable Pinouts
This appendix identifies the pinouts for each connector used in the SANnet II 200 FC,
SATA, and SATA SE arrays. Topics covered are:
■
■
D.1
RJ-45 Connector
Figure D-1 Ethernet RJ-45 Socket 10/100BASE-T
Table D-1 Ethernet RJ-45 Pin Description
Pin No.
Description
TX +
Color
1
2
3
4
White with orange
Orange
TX –
RX +
White with green
Blue
Not
connected
5
Not
White with blue
connected
D-1
Table D-1 Ethernet RJ-45 Pin Description (Continued)
Pin No.
Description
Color
6
7
RX –
Green
Not
White with brown
connected
8
Not
Brown
connected
D.2
DB9 COM Port
The COM port is a female DB9 connector that requires a male DB9 null modem cable.
Figure D-2 RS-232 DB9 (EIA/TIA 574) View of the Male End
Table D-2 Pin Names
Pin No.
Name
DCD
RD
Notes/Description
Data Carrier Detect
Receive Data (also called RxD, Rx)
Transmit Data (also called TxD, Tx)
Data Terminal Ready
Ground
1
2
3
4
5
6
7
8
9
TD
DTR
GND
DSR
RTS
CTS
RI
Data Set Ready
Request To Send
Clear To Send
Ring Indicator
D-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
E
Configuring a Sun Server Running the
Solaris Operating System
This appendix provides access information and LUN setup information needed when
you connect a FC or SATA array to a server running the Solaris operating system. For
a list of supported adapters, refer to the SANnet II 200 FC, SATA, and SATA SE Array
Release Notes.
This information supplements the configuration steps presented in this manual and
covers the following topics:
■
■
■
E.1
Setting Up the Serial Port Connection
The RAID controller can be configured by means of a Solaris workstation running a
VT100 terminal emulation program, or by a Microsoft Windows terminal emulation
program such as HyperTerminal.
Note – You can also monitor and configure a RAID array over an IP network with the
SANscape program once you have assigned an IP address to the array. For details, see
to the SANscape User’s Guide.
1. Use a null modem serial cable to connect the COM port of the RAID array to an
unused serial port on a Solaris workstation.
A DB9-to-DB25 serial cable adapter is included in your package contents for
connecting the serial cable to a DB25 serial port on a workstation.
E-1
COM port
COM port
Figure E-1 RAID Array COM Port Connected Locally to the Serial Port of a
Workstation
2. Power up the array.
It can take two or three minutes for both controllers to be initialized before
communication is possible over the connection.
3. Set the serial port parameters on the workstation.
parameters to use.
E.2
Using the tipCommand for Local Access to
the Array
You can access the RAID COM port (DB9 connector on the controller module) locally
with the following steps.
1. Connect the RAID array COM port to the serial port of a Solaris workstation, as shown
# tip -38400 /dev/ttyn
where n is the COM port identifier. For instance, if you have connected the array to the
COM port identified as ttyb, use this command:
# tip -38400 /dev/ttyb
2. Refresh your screen by holding down the Control key on your keyboard and pressing
the letter L key on your keyboard.
E-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
E.3
Determining the WWN in the Solaris Operating
System
Perform the following steps to determine the world wide name (WWN) of a newly
installed HBA device.
1. Reboot the computer.
2. Type the following the command:
# luxadm probe
3. Scroll down the listing to see the Fibre Channel devices and the related WWNs.
Figure E-2 Worldwide Name Information Displayed by the luxadmcommand.
Appendix E Configuring a Sun Server Running the Solaris Operating System E-3
E-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
F
Configuring a Microsoft Windows Server
This appendix provides platform-specific host installation and configuration
information to use when you connect a FC, SATA, or SATA SE array to a host running
the Windows 2000 Server, Windows 2000 Advanced Server, Windows 2003 Server, or
Windows 2003 Advanced Server operating system. For convenience, these platforms
will be referred to collectively in this document as “Windows Windows Server.”
The information in this appendix covers the following steps:
■
■
■
■
F.1
Setting Up the Serial Port Connection
The RAID controller can be configured by means of a host system running a VT100
terminal emulation program such as HyperTerminal in Microsoft Windows.
Note – You can also monitor and configure a RAID array over an IP network using the
RAID firmware or SANscape software after you assign an IP address to the array. For
refer to the SANscape User’s Guide.
1. Use a null modem serial cable to connect the COM port of the RAID array to an
unused serial port on your host system.
A null modem cable has serial signals swapped for connecting to a standard serial
interface.
F-1
Note – A DB9-to-DB25 serial cable adapter is included in your package contents for
connecting the serial cable to a DB25 serial port on your host if you do not have a DB9
serial port.
2. Power up the array.
3. On the server, choose Start →Programs →Accessories →Communications →
HyperTerminal.
4. Type a name and choose an icon for the connection.
5. In the Connect To window, select the COM port from the Connect using: drop-down
menu for that array.
6. Click OK.
7. In the Properties window, set the serial port parameters using the drop-down menus.
Set serial port parameters to:
■
38,400 baud
8 data bits
■
F-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
■
■
1 stop bit
No parity
8. To save the connection and its settings, choose File →Save.
The connection file name is connection-name where connection-name is the name you
gave this HyperTerminal connection in Step 4.
9. To make a connection shortcut on your desktop:
a. Choose Start →Find →For Files or Folders.
b. Enter connection-name and click the Search Now button.
c. Highlight and right-click on the file name in the Search Results window.
d. Choose Create Shortcut and click Yes.
You are now ready to configure your array.
Appendix F Configuring a Microsoft Windows Server F-3
F.2
F.3
Accessing the Firmware Application From a
Microsoft Windows Server
To access the array from a Microsoft Windows Server through a serial port, use the
HyperTerminal connection you configured in “Setting Up the Serial Port Connection”
on page F-1 or install a VT100 terminal emulation program and use the parameters
described there.
To access the array through an Ethernet connection, follow the procedures in “Setting
Up Out-of-Band Management Over Ethernet” on page 4-28. To access the command
prompt described there from a Microsoft Windows Server, perform this step:
● Choose Programs →Accessories →Command Prompt.
Enabling a Microsoft Windows Server to
Recognize New Devices and LUNs
Before beginning this procedure, make sure that you are using a supported FC host bus
adapter (HBA) such as a QLogic QLA2310 or QLogic QLA2342. Refer to the SANnet
II 200 FC, SATA, and SATA SE Array Release Notes for current information about
which HBAs are supported.
Also make sure that you are using a supported driver for your HBA. For the QLA2310
or QLA2342, use driver version 8.1.5.13 or later.
Note – When the Microsoft Windows operating system recognizes the array’s SCSI
Enclosure Services (SES) processor and identifies it as a FC or SATA Enclosure, it
might prompt you to supply a driver. This is standard plug-and-play behavior when
unknown devices are encountered, but no device driver is necessary. If you see this
prompt, simply click Cancel. If you have multiple arrays, you might see this prompt
more than once. Each time you see this prompt, click Cancel.
1. Boot your system and verify that the HBA basic input/output system (BIOS)
recognizes your new FC device.
Note – While your system is starting up, you should see your new Fibre Channel
devices.
2. If a Found New Hardware Wizard is displayed, click Cancel.
You are now ready to partition and format your new devices.
3. Open the Disk Management folder.
a. Right-click on the My Computer icon to display a pop-up menu.
b. Choose Manage.
F-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
c. Select the Disk Management folder.
d. If a Write Signature and Upgrade Disk Wizard is displayed, click Cancel.
A “Connecting to Logical Disk Manager Server” status message is displayed.
4. Select your new device when it is displayed.
5. Right-click in the Unallocated partition of your device to display a pop-up menu.
6. Choose Create Partition from the pop-up menu.
The Create Partition wizard is displayed.
7. Select Primary partition and click Next.
Appendix F Configuring a Microsoft Windows Server F-5
8. Specify the amount of disk space to use or accept the default value, and click Next.
9. Assign a drive letter, if desired, and click Next.
10. Select Format this partition with the following settings.
a. Specify NTFS as the “File system to use.”
b. Make sure the Perform a Quick Format checkbox is selected.
F-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
F.4
Determining the Worldwide Name for Microsoft
Windows Servers
Before you can create host filters, you need to know the worldwide name (WWN) for
the FC HBA that connects your host to your FC array.
1. Boot a specific host system and note the BIOS version and HBA card models
connected to your host.
2. Access the HBA card’s BIOS with the appropriate command (alt-qor control-a
are commonly used).
If the host has multiple HBA cards, select the card that is connected to the storage.
3. Scan the card to look for devices attached to it (usually with the Scan Fibre Devices or
the Fibre Disk Utility).
The node name (or similar label) is the WWN. The following example shows the node
name for a Qlogic card.
ID
Vendor
Product
Rev Node Name
Port ID
0
Qlogic QLA22xx Adapter
B
210000E08B02DE2F 0000EF
Refer to the SANnet II Family RAID Firmware User’s Guide for more information
about creating host filters.
F-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
G
Configuring a Linux Server
This appendix provides access information and LUN setup information needed when
you connect a FC, SATA, or SATA SE array to a server running the Linux operating
system. For a list of supported adapters, refer to the SANnet II 200 FC, SATA, and
SATA SE Array Release Notes.
This information supplements the configuration steps presented in this manual and
covers the following topics:
■
■
■
■
■
■
■
■
■
G.1
Setting Up the Serial Port Connection
The RAID controller can be configured by means of a host system running a VT100
terminal emulation program or running a terminal emulation program such as
Minicom.
Note – You can also monitor and configure a RAID array over an IP network with the
SANscape program after you assign an IP address to the array. For details, see “Setting
User’s Guide.
To access the controller firmware through the serial port, perform the following steps:
G-1
1. Use a null modem cable to communicate via the serial port of the array.
Connect the serial null modem cable to the array and to ttyS0 (COM1), ttyS1 (COM2),
ttyS2 (COM3), or ttyS3 (COM4).
Note – A DB9-to-DB25 serial cable adapter is included in your package contents for
connecting the serial cable to a DB25 serial port on your host if you do not have a DB9
serial port.
2. Power on the array.
3. After the array is powered up, power on the Linux server and log in as root(or
become superuserif you logged in as a user).
4. Open a terminal session and type:
minicom -s
Press Return. The setup menu is displayed, where you define which serial ports to
use, baud rate, hand shake settings, and flow control.
5. Set serial port parameters on the server.
Set serial port parameters to:
■
■
■
■
38,400 baud
8 bit
1 stop bit
No parity
a. At the configuration screen, use the arrow keys to highlight Serial Port Settings and
press Return.
b. If A is not correct, press the letter Aand the cursor goes to line A.
c. Backspace and edit to select the correct serial port:
/dev/ttyS(x)
where x is the proper serial port connecting the server to the array.
After you edit the line, press Return and the cursor goes back to the line Change
which Settings?
G-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
d. If E is not correct, press the letter Eand the cursor goes to line E. Backspace and
change the line to:
38400 8N1
After you edit the line, press Return and the cursor goes back to the line Change
which Settings?
e. Set F to no. When pressing F, toggle from yes to no.
f. Set G to no. When pressing G, toggle from yes to no.
g. Press the Escape key to return to the configuration screen.
h. In the configuration menu, use the arrow keys to highlight Save setup as dfl and
press Return.
A “configuration saved” confirmation message is displayed.
i. Highlight Exit from Minicom in the configuration menu, and press Return.
G.2
Accessing the Firmware Application From a
Linux Server
After you have set the Minicom serial port parameters, use the Minicom utility to
access the controller firmware with the following steps:
1. To start the Minicom program from the terminal window, type:
minicom
A pop-up window stating “Initializing Modem” is displayed. When initialization is
complete, the following banner is displayed:
Welcome to Minicom 2.00.0
Options: History Buffer, F-Key Macros, Search History
Buffer, I18n
Compiled on Jun 23 2002, 16:14:20
Press “CTRL-A” Z for help on special keys.
2. Press Ctrl-l to connect to the array and access the firmware application.
3. In the main screen, choose Terminal (VT100 Mode) and view the Main Menu
commands used to configure the array.
Appendix G Configuring a Linux Server G-3
G.3
Checking the Adapter BIOS
When booting the server, watch for the HBA card BIOS message line to be displayed.
Then press the proper sequence of keys to get into the HBA BIOS (<Alt-Q> for FC
Qlogic HBAs).
The keystrokes are listed on the screen when the adapter is initializing. If your HBA
has multiple interfaces on it, they will all show up in the main screen of the BIOS
software. You must make the same changes on every interface unless one of the
interfaces is going to be bootable.
After you enter the Qlogic HBA BIOS, perform the following steps.
1. If you have more than one interface, highlight the top interface listed under Adapter
Type and press Return.
2. If you only have one interface, it is already highlighted; press Return.
3. Highlight Configuration Setting and press Return.
4. Highlight Host Adapter Settings and press Return.
5. Move down to Host Adapter BIOS and make sure it is enabled; if not, press the
Return key and it toggles from disabled to enabled.
The setting should be enabled.
6. Press Escape and go back to Configuration Settings. Highlight Selectable Boot
Settings and press Return.
This is where you can make the interface bootable or not bootable.
7. Highlight Select Boot Device. Press the Return key to toggle from disabled to
enabled.
■
Select Disabled if this is not going to be a bootable device.
■
Select Enabled if this is going to be bootable device.
8. Press Escape until you get back to Configuration Settings.
9. Highlight Extended Firmware Settings and press Return.
10. On the Extended Firmware Settings menu, highlight Connection Option and press
Return.
A screen lists three types of connection:
■
■
■
0 – Loop only - - - - for connecting to loop type devices
1 – Point to point only - - - - for connecting to fabric switches
2 – Loop preferred, otherwise point to point
11. Select a connection type.
■
If you are connecting to a loop device, select 0and press Return.
■
If you are connecting to a fabric device or switch, select 1and press Return.
Do not select 2.
G-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
12. Press Escape until a screen is displayed that says “Configuration setting modified.”
Highlight Save changes and press Return.
13. Return to the Fast!UTIL Options. Highlight Scan Fibre Devices and press Return.
This menu option scans all 126 channels to see if there are any devices attached; the
devices are displayed after the scan. If there are no devices attached, it takes some time
to scan. If there are devices attached, the scan usually finds them right away.
14. If you are satisfied with the configuration, press Escape until you get to
Configuration Settings.
15. Highlight Exit Fast!UTIL and press Return.
A screen is displayed that says Exit Fast!UTIL.
16. Highlight Reboot System and press Return.
The server reboots.
G.4
Multiple LUN Linux Configuration
By default, the Linux kernel does not support multiple LUNs. To support multiple
LUNs, modify the kernel with the following steps:
1. Log in as root, or become a superuserif you are logged in as a user.
2. Add this line to the end of the /etc/modules.conffile and save the file:
options scsi_mod max_scsi_luns=255
3. At the system prompt, enter this command and press Return:
mkinitrd -f /boot/initrd-2.4.9-e.3.img 2.4.9-e.3
The 2.4.9-e.3 entries refer to the current kernel. To find out your current kernel, type
uname -r and substitute your kernel information in place of the 2.4.9-e.3 entries.
4. Reboot the server.
■
To halt the server completely, use shutdown -h now.
■
To reboot automatically after the shutdown is complete, use shutdown -r now.
G.5
Making an ext3 File System for Linux
The following procedure for labeling and partitioning drives using fdiskapplies to an
ext3 file system. To discover which disk you want to label, you need to determine what
device it is.
Appendix G Configuring a Linux Server G-5
1. To list all devices and their paths, start a terminal session and type:
fdisk -l
Record the device names and paths that you plan to use.
2. Type:
fdisk /dev/sd(x) x= a,b,c,...
A banner is displayed for the specified array device. The last statement displays a
prompt.
3. Type mto display the menu.
4. On the displayed menu, select “n” for the command action and press Return.
Two choices are displayed:
e extended
p primary partition (1-4)
Note – Only four primary partitions are allowed per array. All additional partitions
must be added as extended LUNs under one primary partition. Only one primary
partition is allowed to have extended LUNs.
5. For the first partition, select p.
When several options appear, keep the defaults. You can reconfigure this after you
understand the process and see what it looks like. Add additional primary partitions
and extended partitions as needed.
6. After you have completed accepting the defaults and are back at the “Command (m or
help):” screen, press W to save the configuration and exit fdisk.
Your partition is ready for a file system now.
G.6
Creating a File System
1. Log in as root, or become superuserif you are logged in as a user.
G-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2. Take the device that you ran fdiskon and run the following command to create an
ext3 file system:
mkfs -t ext3 /dev/sdb(x)
where x is the partition on which you are creating a file system. Replace x with 1
because there is only one partition.
G.7
Creating a Mount Point and Mounting the File
System Manually
1. Go to the directory where you want to create a directory that will be the mount point.
Then type the following command:
mkdir name
where name is the name of the new directory.
2. To mount your file system, type the following:
mount /dev/sdb(x) / directory-path
where x is 1 for this partition and the directory-path is the directory that was created
and its location.
G.8
Mounting the File System Automatically
You can label the partition so that it can be entered in the fstabfile for mounting the
partition automatically at bootup. The use of the label and fstabfile is a faster
operation than mounting the file system manually with a device path.
1. Type the following command to add a label to the partition:
e2label /dev/sdb(x) / directory-path
where x is 1 for this partition and directory-path is the directory that was created and
its location.
2. Edit the /etc/fstabfile and add the following line:
LABEL=/mount/point /mount/point ext3 1 2
Appendix G Configuring a Linux Server G-7
3. Save the file.
4. To verify that fstabwas set up correctly, type:
mount -a
If the mount point and the fstabfile are correctly set up, no errors are displayed.
5. To verify that the file system is mounted and list all mounted file systems, type:
df -k
6. To unmount the file system, type:
umount /filesystem-name
G.9
Determining the Worldwide Name for Linux
Hosts
Before you can create host filters, you need to know the worldwide name (WWN) for
the FC HBA that connects your host to your FC array.
1. Boot a specific host system and note the BIOS version and HBA card models
connected to your host.
2. Access the HBA card’s BIOS with the appropriate command (Alt-Q or Control-A are
commonly used).
If the host has multiple HBA cards, select the card that is connected to the array.
3. Scan the card to look for devices attached to it (usually with the Scan Fibre Devices or
the Fibre Disk Utility).
The node name (or similar label) is the WWN. The following example shows the node
name for a Qlogic card.
ID
Vendor
Product
Rev Node Name
Port ID
0
Qlogic QLA22xx Adapter
B
210000E08B02DE2F 0000EF
Refer to the SANnet II Family RAID Firmware User’s Guide for more information
about creating host filters.
G-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
H
Configuring an IBM Server Running the AIX
Operating System
This appendix provides platform-specific host installation and configuration
information to use when you connect an FC or SATA array to an IBM server running
the AIX operating system.
The SANnet II 200 FC, SATA, and SATA SE arrays support versions 4.3.3 and 5.1L of
the IBM AIX operating system in dual-path configurations using SANpath failover
drivers for IBM AIX.
The information in this appendix covers the following steps:
■
■
■
■
■
■
■
■
■
■
H.1
Setting Up a Serial Port Connection
The RAID controller can be configured by means of a host system running a VT100
terminal emulation program or by a Microsoft Windows terminal emulation program
such as HyperTerminal.
H-1
If you are planning to access your array over an IP network or through a terminal
server and only want to connect through a serial port for the initial configuration of the
array, it is not necessary to configure a serial port connection from your IBM host. For
convenience, installers frequently perform the initial array configuration using a serial
port on a portable computer.
If you want to use a Microsoft Windows portable computer for this initial array
2000 systems.
If you prefer to connect through a serial port on your IBM server, consult the hardware
information for your IBM host system to locate a serial port you can use for
configuring the array. The system documentation also tells you what device file to use
to access that port. Then set the serial port parameters on the server. See “Configuring
a Host COM Port to Connect to a RAID Array” on page 4-26 for the parameters to use.
Note – The next section also shows how to use the Kermit utility to set these
parameters.
H.2
Accessing the Firmware Application From an
IBM Server Running AIX
The RAID controller can be configured from the host system by means of terminal
emulators such as Kermit.
Note – You can also monitor and configure a RAID array over an IP network with the
SANscape program after you assign an IP address to the array. For details, see “Setting
User’s Guide.
To access the controller firmware through the serial port, perform the following steps:
1. Connect the serial null modem cable to the disk array and to the serial port on the IBM
server.
Note – A DB9-to-DB25 serial cable adapter is shipped with the disk array for
connecting the serial cable to a DB25 serial port on your host if you do not have a DB9
serial port.
H-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
COM port
COM port
Figure H-1 RAID Array COM Port Connected Locally to the Serial Port of a Host
System
2. Power on the array.
3. After the array is powered up, power on the IBM server and log in as root, or become
superuserif you are currently logged in as a user.
4. Start the Kermit program and set the parameters as shown.
Use the device-specific name for the serial port you are using. In the example, the
serial port being configured is /dev/tty0p1.
# kermit
Executing /usr/share/lib/kermit/ckermit.ini for UNIX...
Good Morning!
C-Kermit 7.0.197, 8 Feb 2000, for HP-UX 11.00
Copyright (C) 1985, 2000,
Trustees of Columbia University in the City of New York.
Type ? or HELP for help.
(/) C-Kermit>set line /dev/tty0p1
(/) C-Kermit>set baud 38400
/dev/tty0p1, 38400 bps
(/) C-Kermit>set term byte 8
(/) C-Kermit>set carrier-watch off
(/) C-Kermit>C
Connecting to /dev/tty0p1, speed 38400.
The escape character is Ctrl-\ (ASCII 28, FS)
Type the escape character followed by C to get back,
or followed by ? to see other options.
----------------------------------------------------
Note – To return to the Kermit prompt type Ctrl \ and then C. To exit Kermit, first
return to the Kermit prompt and then type exit.
Appendix H Configuring an IBM Server Running the AIX Operating System H-3
H.3
Identifying the Device on Which You Will
Create a Logical Volume
1. Display all the defined disk devices on your system.
# lsdev -Cc disk
A list of defined disk devices is displayed along with information about those devices.
2. Identify the name of the device on which you want to create a logical volume, for
example, hdisk7.
3. Verify that the disk you’ve identified is the one you want.
# lscfg -v -l device-name
Detailed information about the device you specified is displayed.
4. Examine the manufacturer information and model information to make sure you have
specified the device you want.
H.4
Using SMIT to Enable an AIX Host to
Recognize New LUNs
The simplest way to configure your IBM AIX host to use your array is to use the
System Management Interface Tool (SMIT). SMIT can be used with a graphical user
interface (GUI) if your host is configured with a graphics card or if you want to export
your display to an X-Windows terminal. SMIT can also be used with an ASCII
interface that can be accessed through an ASCII terminal or console window on
another system on the network. Because the ASCII interface is available on all
systems, it is used as an example in the remainder of this appendix, but either interface
can be used to perform the procedures described here. In addition, the same operations
can be performed directly from the command line using standard AIX system
administration commands.
Note – Use the Enter key when you have finished filling out a screen to advance to the
next screen. Use the keystroke combinations shown on the screen to move back to
previous screens.
1. Start SMIT using the ASCII interface to display the System Management screen.
# smit -a
H-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2. Choose System Storage Management (Physical and Logical Storage) from the
System Management menu.
3. Choose Logical Volume Manager from the System Storage Management menu.
The Logical Volume Manager menu is displayed on the Logical Volume Manager
screen. You will be using menu options from this menu to create a volume group and
then a logical volume within this volume group.
Logical Volume
Manager
Volume Groups
Logical Volumes
Physical Volumes
Paging Space
Volume groups are a way of dividing and allocating disk storage capacity. Volume
groups can be used to subdivide a large partition of storage into smaller units of usable
space called logical volumes.
Each volume group is divided into logical volumes, which are seen by applications as
individual disks. Logical volumes can contain their own file systems.
The underlying physical storage in a volume group consists of one or more physical
volumes. A physical volume can be a single physical disk or a partition of a disk array.
In this appendix, the physical volume is the disk device you identified in “Identifying
H.5
Creating a Volume Group
1. Choose Volume Group from the Logical Volume Manager menu.
2. Choose Add a Volume Group from the Volume Groups menu.
3. Type the name you want to give the volume group next to VOLUME GROUP name.
4. Next to PHYSICAL VOLUME name, type the name of the disk device you identified
An “ARE YOU SURE” confirmation screen is displayed.
5. Confirm this message to display a status screen.
When the volume group is created, a status screen displays “Command: OK.”
6. Return to the Volume Groups screen to activate the new volume group.
Appendix H Configuring an IBM Server Running the AIX Operating System H-5
7. Choose Activate a Volume Group from the Volume Groups menu.
8. Next to VOLUME GROUP name, type the name you gave the volume group.
When the volume group is activated, a status screen displays “Command: OK.”
H.6
Creating a Logical Volume
1. Return to the Logical Volume Manager screen.
2. Choose Logical Volumes from the Logical Volume Manager menu to display the
Logical Volumes screen.
3. Choose Add a Logical Volume from the Logical Volumes menu to display the Add a
Logical Volume screen.
4. Type the name you gave the volume group next to VOLUME GROUP name.
The Add a Logical Volume screen is displayed.
5. Type the name you want to give the new logical volume next to LOGICAL VOLUME
(new).
6. Type the number of partitions you want to create on the new logical volume next to
Number of LOGICAL PARTITIONS.
7. Type the values you want to use for the other parameters on the Add a Logical Volume
screen or accept the default values.
When the logical volume is created, a status screen displays “Command: OK” and
displays the name of the new logical volume.
H.7
Creating a File System
The following steps create a file system on the new logical volume.
1. Return to the System Storage Management (Physical and Logical Storage) screen.
The System Storage Management screen is displayed.
2. Choose File Systems from the System Storage Management menu to display the File
Systems screen.
3. Choose Add →Change →Show →Delete File Systems from the File Systems menu.
4. Choose Journaled File System to display the Journaled File System screen.
5. Choose Add a Journaled File System from the Journaled File System menu.
6. Choose Add a Standard Journaled File System to display the Volume Group Name
screen.
The Volume Group Name screen displays the names of available volume groups.
H-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
The Add a Standard Journaled File System screen is displayed.
8. Specify the size of the file system you want to create by typing the number of blocks
you want next to SIZE of file system (in 512-byte blocks).
9. Next to MOUNT POINT, type the directory name (and path, if desired) on which you
want to mount the new file system.
Note – If the mount point directory does not exist, it is created.
When the file system is created, a status screen displays “Command: OK,” the
Journaled File System, the mount point, and the size of the file system.
H.8
Mounting the New File System
1. Return to the File Systems screen.
2. Choose List All File Systems from the File Systems menu to see the names of all file
systems.
3. Identify the name of the file system you created in the Name column, for example,
ldev/lv00.
4. Choose Mount a File Systemfrom the File Systems menu to display the Mount a
File System screen.
6. Type the name of the mount point you specified next to DIRECTORY over which to
mount.
When the file system is mounted, a status screen displays “Command: OK.”
7. Exit SMIT.
H.9
Verifying That the New File System Is Mounted
1. Use the mount command to verify that the logical volume is mounted correctly.
# mount
The mounted file systems and directories are displayed.
2. Examine the list to make sure your new file system is mounted at the mount point you
specified.
Appendix H Configuring an IBM Server Running the AIX Operating System H-7
3. Display the attributes of the new file system.
# df -k mount-point
H.10
Determining the Worldwide Name for IBM
Servers Running AIX
Before you can create host filters, you need to know the worldwide name (WWN) for
the FC HBA that connects your host to your FC array.
For supported IBM HBAs, perform these steps:
1. Determine the device name by typing the command:
# lscfg | grep fc
2. Type the following command:
# lscfg -vl device-name
Output similar to the following is displayed. The network address is the WWN.
Figure H-2 Network Address Corresponding to WWN
H-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
APPENDIX
I
Configuring an HP Server Running the
HP-UX Operating System
This appendix provides platform-specific host installation and configuration
information to use when you connect a FC or SATA array to an HP server running the
HP-UX operating system.
The FC, SATA, and SATA SE arrays support the HP-UX operating system Level 11.0
and Level 11.i in dual-path configurations using multipath failover drivers for the HP-
UX operating system.
The information in this appendix covers the following steps:
■
■
■
■
■
■
■
■
■
■
■
■
I.1
Setting Up a Serial Port Connection
The RAID controller can be configured by means of a host system running a VT100
terminal emulation program or by a Microsoft Windows terminal emulation program
such as Hyperterminal.
I-1
If you are planning to access your array over an IP network or through a terminal
server and only want to connect through a serial port for the initial configuration of the
array, it is not necessary to configure a serial port connection from your HP host. For
convenience, installers frequently perform the initial array configuration using a serial
port on a portable computer.
If you want to use a Microsoft Windows portable computer for this initial array
2000 systems.
If you prefer to connect through a serial port on your HP server, consult the hardware
information for your HP host system to locate a serial port you can use for configuring
the disk array. The system documentation also tells you what device file to use to
access that port. Then set the serial port parameters on the server. See “Configuring a
Host COM Port to Connect to a RAID Array” on page 4-26 for the parameters to use.
Note – The next section also shows how to use the Kermit utility to set these
parameters.
Once you have configured your serial port, follow the instructions in the next section.
I.2
Accessing the Firmware Application From an
HP Server Running HP-UX
The RAID controller can be configured from the host system by means of terminal
emulators such as cuor Kermit. These instructions show the use of Kermit. For
information about cu, refer to cu(1).
Note – You can also monitor and configure a RAID array over an IP network with the
SANscape program after you assign an IP address to the array. For details, see “Setting
User’s Guide.
To access the controller firmware through the serial port, perform the following steps:
1. Use a null modem serial cable to connect the COM port of the RAID array to an
unused serial port on your host system.
A null modem cable has serial signals swapped for connecting to a standard serial
interface.
Note – A DB9-to-DB25 serial cable adapter is included in your package contents for
connecting the serial cable to a DB25 serial port on your host if you do not have a DB9
serial port.
I-2 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
COM port
COM port
FIGURE I-1 RAID Array COM Port Connected Locally to the Serial Port of a Host System
2. Power on the array.
3. After the array is powered up, power on the HP server and log in as root, or become
superuserif you are logged in as a user.
4. Start the Kermit program and set the parameters as shown.
Use the device-specific name for the serial port you are using. In the example, the
serial port being configured is /dev/tty0p1.
# kermit
Executing /usr/share/lib/kermit/ckermit.ini for UNIX...
Good Morning!
C-Kermit 7.0.197, 8 Feb 2000, for HP-UX 11.00
Copyright (C) 1985, 2000,
Trustees of Columbia University in the City of New York.
Type ? or HELP for help.
(/) C-Kermit>set line /dev/tty0p1
(/) C-Kermit>set baud 38400
/dev/tty0p1, 38400 bps
(/) C-Kermit>set term byte 8
(/) C-Kermit>set carrier-watch off
(/) C-Kermit>C
Connecting to /dev/tty0p1, speed 38400.
The escape character is Ctrl-\ (ASCII 28, FS)
Type the escape character followed by C to get back,
or followed by ? to see other options.
Note – To return to the Kermit prompt, type Ctrl \ and then C. To exit Kermit, first
return to the Kermit prompt and then type exit.
Appendix I Configuring an HP Server Running the HP-UX Operating System I-3
I.3
Attaching the Disk Array
The simplest way to configure a disk array is to use System Administration Manager
(SAM), HP-UX’s system administration tool. If SAM is not installed on your system,
or if you prefer to use the command-line interface, the following procedures guide you
through the task. For more information, consult the HP document, Configuring HP-UX
for Peripherals:
1. Use the ioscancommand to determine what addresses are available on the HBA to
which you will be attaching the array.
2. Access the firmware application on the array and set the SCSI IDs of the host channels
you will be using.
3. Map the partitions containing storage that you want to use to the appropriate host
channels.
Partitions must be assigned to LUNs in sequential order, beginning at LUN 0.
4. Halt the operating system using the shutdowncommand.
5. Turn off all power to peripheral devices and then to the server.
6. Attach one or more host channels of the FC or SATA array to the SCSI interface cards
in the host using the supplied SCSI cables.
7. Turn on the power to the FC or SATA array and all other peripheral devices. After they
are initialized, power on the server and boot HP-UX. During the boot process, the
operating system recognizes the new disk devices and builds device files for them.
8. Verify that you can see the new storage resources by running the ioscancommand.
You are now ready to use the storage.
Note – If you create and map new partitions to the array, you can have them
recognized by the operating system without rebooting. Run the ioscanand the insf
commands to discover the resources and to create their device files.
I.4
Logical Volume Manager
The Logical Volume Manager (LVM) is a disk management system provided by HP in
all versions of HP-UX 11. The LVM allows you to manage storage as logical volumes.
This section describes some concepts used by the LVM and explains how to create
logical volumes on your SANnet II 200 Fibre Channel Array. For more detailed
information about the LVM, consult lvm(7) and the HP publication Managing Systems
and Workgroups: Guide for HP-UX System Administration (HP part number B2355-
90742).
I-4 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
As with many system administration tasks, you can use SAM to create and maintain
logical volumes. However, some functions can only be performed with HP-UX
commands. The procedures in this appendix are performed using the command-line
interface rather than SAM.
I.5
Definitions of Common Terms
Volume groups are HP-UX’s method for dividing and allocating disk storage capacity.
Volume groups can be used to subdivide a large partition of storage into smaller units
of usable space called logical volumes.
Each volume group is divided into logical volumes, which are seen by the applications
as individual disks. They can be accessed as either character or block devices and can
contain their own file systems.
The underlying physical storage in a volume group consists of one or more physical
volumes. A physical volume can be a single physical disk or a partition of a disk array.
Each physical volume is divided into units called physical extents. The default size of
these units is 4 Mbyte, but can range in size from 1 Mbyte to 256 Mbyte. The
maximum number of physical extents that a volume group can contain is 65,535. With
the default size of 4 Mbyte, this limits the size of the volume group to 255 Gbyte.
To create a volume group larger than 255 Gbyte, you must increase the size of the
physical extents when creating the volume group. Refer to vgcreate(1m) for further
information.
I.6
Creating a Physical Volume
To use a storage resource in the LVM, it must first be initialized into a physical volume
(also called an LVM disk).
1. Log in as root, or become superuserif you are not logged in with root user
privileges.
2. Select one or more partitions on the array that you want to use. The output of
ioscan(1M) shows the disks attached to the system and their device names:
# ioscan -fnC disk
Class I H/W Path
Driver S/W State H/W Type Description
disk 1 0/12/0/0.6.0 sdisk CLAIMED
/dev/dsk/c12t6d2 /dev/rdsk/c12t6d2
DEVICE
SANnet II 200F R
Appendix I Configuring an HP Server Running the HP-UX Operating System I-5
3. Initialize each partition as an LVM disk with the pvcreatecommand. For example,
type:
# pvcreate /dev/rdsk/c12t6d2
Caution – This process results in the loss of any data that resides on the partition.
I.7
Creating a Volume Group
The volume group contains the physical resources that you can use to create usable
storage resources for your applications.
1. Create a directory for the volume group and a device file for the group in that
directory:
# mkdir /dev/vgmynewvg
# mknod /dev/vgmynewvg/group c 64 0x060000
The name of the directory is the name of the volume group. By default, HP-UX uses
names of the format vgNN,but you can choose any name that is unique within the list
of volume groups.
In the preceding example, the mknodcommand has the following arguments:
■
■
■
■
The fully qualified path name of the new device file group
The letter c indicating a character device file
The major number 64 (used for all volume groups)
A minor number of the form 0xNN0000, where NN is the two-digit hexadecimal
representation of the volume group number (06 in the example)
To associate the physical volume with a volume group, use the vgcreatecommand:
# vgcreate /dev/vgmynewvg /dev/dsk/c12t6d2
To verify the creation and view the volume group properties, use the vgdisplay
command:
# vgdisplay vg02
--- Volumegroups -
--
VG Name
/dev/vg02
I-6 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
VG Write Access
VG Status
Max LV
read/write
available
255
Cur LV
0
Open LV
0
Max PV
16
Cur PV
1
Act PV
1
Max PE per PV
VGDA
2167
2
PE Size (Mbytes)
Total PE
Alloc PE
Free PE
4
2167
0
2167
0
Total PVG
In the output of vgdisplay, the Total PE field displays the number of physical
extents in the volume group.
The size of each physical extent is displayed in the PE Size field (the default is 4
Mbyte), so the total capacity of this volume group is 2167 x 4 Mbyte = 8668 Mbyte.
The Alloc PE field shows the number of physical extents allocated to logical volumes.
At this point, the Alloc PE field is zero because we have not assigned any of this
volume group’s capacity to logical volumes.
I.8
Creating a Logical Volume
To create a logical volume within the volume group, use the lvcreatecommand with
the -L option to specify the size of the logical volume in megabytes. The logical
volume size should be a multiple of the physical extent size. In this example, a logical
volume of 4092 Mbyte is created:
# lvcreate -L 4092 /dev/vg02
Appendix I Configuring an HP Server Running the HP-UX Operating System I-7
Both character and block device files for the new logical volume are created in the
volume group directory:
# ls /dev/vg02
group lvol1 rlvol1
Applications should use these names to access the logical volumes. Unless you specify
otherwise, HP-UX creates names in the form shown in the example. To specify custom
names for logical volumes refer to vgcreate(1M).
I.9
Creating an HP-UX File System
The following command creates a file system on the logical volume created in the
previous steps.
# /sbin/newfs -F vxfs /dev/vgmynewvg/rlvol1
I.10
Mounting the File System Manually
The process of incorporating a file system into the existing directory structure is
known as “mounting the file system.” The files, although present on the disk, are not
accessible to users until they are mounted.
1. Create a directory to be the mount point for your new file system:
# mkdir /usr/local/myfs
2. To mount your file system, type the following:
# mount /dev/vgmynewvg/lvol1 /usr/local/myfs
I.11
Mounting the File System Automatically
By placing information about your file system in the fstab file, you can have HP-
UX mount the file system automatically during bootup. You can also use the name of
the mount point in mount commands that you issue from the console.
1. Make a copy of the existing fstab file:
# cp /etc/fstab /etc/fstab.orig
I-8 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
2. To include the file system created in the example, add the following line to the file
/etc/fstab:
/dev/vg0mynewvg/lvol1 /usr/local/myfs vxfs delaylog 0 2
Refer to the entry for fstab(4) for details about creating /etc/fstab entries.
3. To check to see if fstab was set up correctly, type:
# mount -a
If the mount point and the fstab file are correctly set up, no errors are displayed.
4. To verify that the file system is mounted and list all mounted file systems, type:
# bdf
5. To unmount the file system, type:
# umount /usr/local/myfs
I.12
Determining the Worldwide Name for HP-UX
Hosts
Before you can create host filters, you need to know the worldwide name (WWN) for
the FC HBA that connects your host to your FC array.
For supported HP-UX host HBAs, follow these steps:
1. Determine the device name by typing the command:
# ioscan -fnC fc
Appendix I Configuring an HP Server Running the HP-UX Operating System I-9
2. Type:
# fcmsutil/device-name/
Output similar to the following is displayed:
The Node worldwide name shown is the WWN you use when configuring the RAID
controller.
I-10 SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
Index
standard package 3–3
cabling
A
address
cables supplied 3–2
Ethernet connection 4–28
procedures 4–2
IP 4–25
agent
Agent Options Management window B–10
alarms
RS-232 connection 4–26
to expansion units B–6
CD supplied 1–15
channels
failed component description C–1
silencing 8–6
amber blinking on Event LED 6–4
arbitrated loop physical address A–3
array
drive 4–16
host 4–16
checking
connecting 4–1
package contents 3–2
clearances to allow 2–4
CLI
mounting 3–3
show network-parameters 4–26
client
B
battery 7–4
DHCP 4–25
date code 7–4
description 1–10
shelf life 7–4
when to change 7–4
battery operation 7–4
baud rate 4–26
beep codes
COM port 4–25
connecting to 4–26
COM port connection I–2
communication parameters 4–26
communications link
establishing 4–25
muting 8–6
bus adapter
connecting to 4–31
configuration
key steps 5–1
overview 5–1
Configuring
Sun server running the Solaris operating system
configuring
C
cable pinouts
pinouts
cable D–1
cables
Linux server G–1
out-of-band management 4–28
customer-provided 3–3
1
Solaris E–1
cabling to B–6
Windows F–1
Windows 2000 server or Windows 2000
Advanced server F–1
connecting
F
Failed C–1
failover
controller 8–7
fan LED 6–3
fatal drive failure
recovering from 8–8
FC array
an expansion unit B–6
chassis to an AC power outlet 4–7
chassis to DC power outlets 4–9
fibre channel array 4–1
ports to hosts 4–31
SFPs to SFP Ports 4–24
SFPs to SFP ports B–9
features 1–3
connection
in-band 7–2
controller
failover 8–7
failure 8–8
customer obligations 2–1
customer-provided cables 3–3
FC Protocols 1–12
FC Topologies 1–12
Fibre Channel
loop architecture 1–14
protocols 1–12
technology overview 1–11
topologies 1–12
fibre channel array
configuration options 1–7
identification on chassis 1–7
scaling 4–29
D
DB9 COM port D–2
fibre hubs 1–12
DHCP client 4–25
disks not visible 8–7
drive
fibre switches 1–12
Field-Replaceable Units 1–8
field-replaceable units
SANnet II 200 FC Array 3–3
firmware
upgrading 7–7
view event logs 7–5
flowcharts
description 1–9
drive channels 4–16
SANnet II 200 FC Array 4–18
drive failure
recovering from a fatal 8–8
drive ports
SANnet II 200 FC Array 4–18
drive LEDs 8–13
front panel LEDs 8–16
I/O controller module 8–21
Front-Panel LEDs 6–2
FRUs 1–8
E
H
electromagnetic compatibility (EMC) 2–3
environmental range 2–3
Environmental Requirements 2–3
Ethernet connection 4–28
event LED 6–3
hardware PLD code version conflict 6–4
hardware specifications A–2
Host and Drive Channels 4–16
host bus adapter
connecting to 4–31
Event Logs 7–5
host channel
expansion unit
expansion units
connecting two host to one channel 5–14
limitations 5–14
SANnet II 200 FC Array 4–19
2
SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
host channels 4–16
data transfer speed
limitations
host channels 4–20
SANnet II 200 FC Array 4–19
SANnet II 200 SATA Array 4–20
limitations 4–20
load balancing A–4
loop id
LUN filtering A–4
LUN mask A–4
LUNs
host configuration
Linux G–1
Solaris E–1
Solaris operating system E–1
Windows F–1
resizing B–12
Windows 2000 F–1
host connections 4–31
host LUNs
not visible 8–7
host port
M
map
layout 2–4
logical drive A–4
muting
SANnet II 200 FC Array 4–19
humidity 2–3
alarms 8–6
beeper 8–6
I
I/O controller module 1–8
IP address 4–25
N
null modem cable 4–26
null modem serial cable 4–26
IP address, setting 4–28
J
O
JBOD
operating systems supported 1–11
out-of-band
connection 7–2
out-of-band management 4–28
single-bus configuration B–11
split-bus configuration B–11
JBOD arrays
connecting B–6
connection methods B–2
enabling support B–10
known limitations B–2
monitoring and management tools B–3
supported configurations B–1
supported host platforms B–2
supported operating systems B–2
troubleshooting B–12
P
package contents 3–2
checking 3–2
parameters
serial port 4–26
physical specifications A–1
planning site 2–1
ports
COM 4–25
connecting (see cabling) 4–2
serial 4–25
L
layout map 2–4
LEDs
power LED 6–3
power outlets
drives 6–2
front panel 6–2, 6–3
rear panel 6–5
connecting to AC 4–7
connecting to DC 4–9
Index
3
powering up an array 4–16
Powering Up and Checking LEDs 4–16
power-off procedure 4–33
power-on sequence 4–32
preinstallation worksheet 2–6
Product and Architecture Overview 1–1
protocols
SES version conflict 6–4
SFP connectors 4–31
show network-parameters CLI command 4–26
silencing alarms 8–6
Simple Network Management Protocol 4–26
site planning 2–1
Fibre Channel 1–12
console requirement 2–5
customer obligations 2–1
EMC 2–3
environmental 2–3
layout 2–4
R
rack-mounting an array
cabinet-mounting an array 3–3
RARP 4–27
physical 2–4
safety precautions 2–2
site preparation survey 2–6
SNMP 4–26
software tools 1–15
specifications
clearances 2–4
physical (array) 2–4
specifications (product) A–2
switch
Rear-Panel LEDs 6–5
Recovering From Fatal Drive Failure 8–8
redundant controller
explained 8–8
redundant loops A–4
release notes 1–15
requirements
environmental 2–3
Reset button 8–7
reset button
pressing 8–10
silencing failed component alarms 8–6
RJ-45 connector D–1
RS-232
T
temp LED 6–3
RS-232 port 4–25
temperature
environmental range 2–3
temperature LED 6–3
topologies
Fibre Channel 1–12
troubleshooting 8–1
disks not visible 8–7
flowcharts 8–11
LUNs not visible 8–7
S
safety precautions 2–2
SATA array
features 1–4
sensor locations 8–1
sensors
cooling element 8–2
U
power supply 8–5
temperature 8–3
upgrading firmware 7–7
voltage 8–4
serial cable
null modem 4–26
serial port
V
VT100 terminal connection 4–26
parameters 4–26
4
SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
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SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005
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