SentinelRAID 170
320MB/sec SCSI-to-SCSI RAID Controller
Installation and Hardware
Reference Manual
Version 1.1 (04, 2004)
Printed in Taiwan
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Copyright 2004
This Edition First Published 2004
All rights reserved. This publication may not be reproduced, transmitted, transcribed,
stored in a retrieval system, or translated into any language or computer language, in any
form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the prior written consent of Infortrend Technology, Inc.
Disclaimer
Infortrend Technology makes no representations or warranties with respect to the
contents hereof and specifically disclaims any implied warranties of merchantability or
fitness for any particular purpose. Furthermore, Infortrend Technology reserves the right
to revise this publication and to make changes from time to time in the content hereof
without obligation to notify any person of such revisions or changes. Product
specifications are also subject to change without prior notice.
Trademarks
Infortrend
and
the
Infortrend
logo
are
registered
trademarks
of
Infortrend Technology, Inc. SentinelRAID and other names prefixed with “IFT” and
“SR” are trademarks of Infortrend Technology, Inc.
PowerPC® is a trademark of International Business Machines Corporation and Motorola
Inc.
Solaris and Java are trademarks of Sun Microsystems, Inc.
All other names, brands, products or services are trademarks or registered trademarks of
their respective owners.
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Warnings and Certifications
FCC
(applies in the U.S. and Canada)
This device complies with Part 15 of FCC Rules. Operation of this device is subject to
the following two conditions: 1) this device may not cause harmful interference, and 2)
this device must accept any interference received, including interference that may cause
undesired operation.
Warning:
Use only shielded cables to connect I/O devices to this equipment.
You are cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the equipment.
This device is in conformity with the EMC
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Table of Contents
CHAPTER 1: INTRODUCTION ............................................................................................................ 1-1
1.1.
1.1.1
1.1.2
1.2.
1.2.1
1.2.2
1.2.3
PRODUCT OVERVIEW ................................................................................................................... 1-1
Product Introduction ........................................................................................................... 1-1
Enclosure............................................................................................................................. 1-2
SR COMPONENTS......................................................................................................................... 1-3
LCD Panel........................................................................................................................... 1-3
Controller Board ................................................................................................................. 1-3
Interfaces............................................................................................................................. 1-5
SR ACCESSORY ITEMS ................................................................................................................. 1-7
Serial Cable......................................................................................................................... 1-7
Null Modem......................................................................................................................... 1-7
Ethernet Cable..................................................................................................................... 1-7
Bezel Key............................................................................................................................. 1-7
SEPARATELY PURCHASED ACCESSORY ITEMS ............................................................................. 1-7
DIMM Modules ................................................................................................................... 1-7
SCSI Cables......................................................................................................................... 1-8
Power Cords........................................................................................................................ 1-8
1.3.
1.3.1
1.3.2
1.3.3
1.3.4
1.4.
1.4.1
1.4.2
1.4.3
2
1.4.4
I C Signal Compatible Cables ............................................................................................ 1-8
1.5.
1.5.1
1.5.2
1.6.
1.6.1
1.6.2
OPTIONAL ITEMS.......................................................................................................................... 1-8
Battery Backup Unit (BBU)................................................................................................. 1-8
Daughter Board Expansion................................................................................................. 1-9
ENVIRONMENTAL REQUIREMENTS............................................................................................... 1-9
Power Supply Requirements................................................................................................ 1-9
Cooling Requirements ....................................................................................................... 1-10
SR CONTROLLER MONITORING ................................................................................................. 1-10
1.7.
2
1.7.1
1.7.2
1.7.3
1.7.4
I C Bus.............................................................................................................................. 1-10
LED Indicators.................................................................................................................. 1-10
Firmware (FW) and RAIDWatch GUI .............................................................................. 1-10
Audible Alarms.................................................................................................................. 1-11
CHAPTER 2: INSTALLATION.............................................................................................................. 2-1
2.1.
2.2.
2.3.
2.3.1
2.3.2
2.4.
2.4.1
2.4.2
2.4.3
2.5.
2.6.
2.6.1
2.6.2
2.7.
2.7.1
2.7.2
2.8.
2.8.1
2.8.2
2.9.
INSTALLATION OVERVIEW ........................................................................................................... 2-1
INSTALLATION PREREQUISITES .................................................................................................... 2-1
SAFETY PRECAUTIONS ................................................................................................................. 2-1
General Considerations....................................................................................................... 2-1
Static-free Installation......................................................................................................... 2-2
HARDWARE INSTALLATION PREPARATION................................................................................... 2-2
Tools or Equipment Needed for Installing the Subsystem ................................................... 2-2
Planning Before Installation ............................................................................................... 2-2
General Installation Procedure........................................................................................... 2-3
UNPACKING THE CONTROLLER .................................................................................................... 2-3
ACCESSING THE CONTROLLER BOARD......................................................................................... 2-4
Overview.............................................................................................................................. 2-4
Removing and Replacing the Chassis Top Cover................................................................ 2-4
MEMORY MODULE INSTALLATION............................................................................................... 2-5
Selecting the DIMMs........................................................................................................... 2-5
DIMM Module Installation Procedure................................................................................ 2-5
BATTERY BACKUP UNIT (BBU) INSTALLATION........................................................................... 2-6
About the First BBU Installation......................................................................................... 2-6
BBU Installation Procedure................................................................................................ 2-7
DAUGHTER BOARD INSTALLATION .............................................................................................. 2-9
About Daughter Board Installation..................................................................................... 2-9
Daughter Board Installation Procedure.............................................................................. 2-9
2.9.1
2.9.2
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CHAPTER 3: CONTROLLER MONITORING ................................................................................... 3-1
3.1.
3.2.
3.3.
CONTROLLER MONITORING OVERVIEW ....................................................................................... 3-1
STATUS-INDICATING LEDS .......................................................................................................... 3-2
AUDIBLE ALARM ......................................................................................................................... 3-3
Default Threshold Values.................................................................................................... 3-3
3.3.1
2
3.4.
I C PORT (ENCLOSURE MONITORING)......................................................................................... 3-3
CHAPTER 4: CONTROLLER CONNECTIONS AND OPERATION............................................... 4-1
4.1.
4.1.1
SENTINELRAID CONNECTION ..................................................................................................... 4-1
I/O Channel Configuration.................................................................................................. 4-1
SCSI Cables......................................................................................................................... 4-1
Host Connection.................................................................................................................. 4-1
Drive Connection................................................................................................................. 4-2
SCSI Termination ................................................................................................................ 4-2
Unique IDs .......................................................................................................................... 4-2
SR 170 TOPOLOGIES.................................................................................................................... 4-2
Single Host Computer.......................................................................................................... 4-2
Dual Host Connection ......................................................................................................... 4-4
Expansion............................................................................................................................ 4-5
CONTROLLER INTEGRATION......................................................................................................... 4-5
OTHER CONNECTIONS.................................................................................................................. 4-6
Power Connection ............................................................................................................... 4-6
Connecting RS-232C Terminal Emulation .......................................................................... 4-6
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.2.
4.2.1
4.2.2
4.2.3
4.3.
4.4.
4.4.1
4.4.2
4.5. POWER ON ................................................................................................................................... 4-7
4.5.1
4.5.2
4.5.3
Check List............................................................................................................................ 4-7
Power On Sequence............................................................................................................. 4-8
LCD Screen ......................................................................................................................... 4-8
POWER OFF PROCEDURE.............................................................................................................. 4-9
4.6.
CHAPTER 5: CONTROLLER MAINTENANCE ................................................................................ 5-1
5.1.
5.1.1
5.1.2
5.1.3
5.2.
5.2.1
5.2.2
CONTROLLER MAINTENANCE OVERVIEW .................................................................................... 5-1
About Controller Maintenance............................................................................................ 5-1
User Serviceable Components............................................................................................. 5-1
Controller Maintenance Considerations............................................................................. 5-1
REPLACING A FAILED DIMM MODULE........................................................................................ 5-2
When should a DIMM module be replaced? ....................................................................... 5-2
DIMM Module Replacement Procedure.............................................................................. 5-2
REPLACING A FAILED OPTIONAL BBU MODULE ......................................................................... 5-4
About BBU Maintenance..................................................................................................... 5-4
BBU Battery Pack Replacement.......................................................................................... 5-4
BBU Charger Board Replacement ...................................................................................... 5-6
DAUGHTER BOARD MAINTENANCE.............................................................................................. 5-6
About Daughter Board Maintenance................................................................................... 5-6
Replacing a Daughter Board............................................................................................... 5-6
5.3.
5.3.1
5.3.2
5.3.3
5.4.
5.4.1
5.4.2
APPENDIX A: SENTINELRAID FEATURES..................................................................................... A-1
A.1. OVERVIEW .................................................................................................................................. A-1
A.2. CONTROLLER FEATURES ............................................................................................................. A-1
A.2.1
A.2.2
A.2.3
A.2.4
A.2.5
SCSI-320 I/O Channels .......................................................................................................A-1
Flexible Configuration ........................................................................................................A-1
Expansion............................................................................................................................A-1
User-friendly Configuration Utilities ..................................................................................A-1
Controller Architecture .......................................................................................................A-2
A.3. FAULT TOLERANCE..................................................................................................................... A-2
A.3.1
A.3.2
A.3.3
A.3.4
Global and Local Spares.....................................................................................................A-2
Hot-swapping of Drives.......................................................................................................A-2
S.M.A.R.T. Support..............................................................................................................A-2
Other Fault Tolerant Features ............................................................................................A-2
A.4. FUNCTIONAL FEATURES.............................................................................................................. A-3
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A.4.1
A.4.2
RAID Levels Supported .......................................................................................................A-3
Controller Chassis...............................................................................................................A-3
APPENDIX B: HARDWARE SPECIFICATIONS ...............................................................................B-1
B.1. CONFIGURATION ..........................................................................................................................B-1
B.2. CONTROLLER ARCHITECTURE......................................................................................................B-2
B.3. RAID MANAGEMENT ..................................................................................................................B-2
B.4. FAULT TOLERANCE......................................................................................................................B-3
B.5. SOFTWARE ...................................................................................................................................B-4
B.6. TECHNICAL SPECIFICATIONS........................................................................................................B-4
B.6.1
B.6.2
B.6.3
Physical Dimensions ...........................................................................................................B-4
Environmental Specifications..............................................................................................B-4
Controller Specifications.....................................................................................................B-5
APPENDIX C: HARDWARE TROUBLESHOOTING....................................................................... C-1
C.1. PROBLEM ........................................................................................................................................C-1
APPENDIX D SPARE PARTS AND ACCESSORIES......................................................................... D-1
D.1. SPARE PARTS .............................................................................................................................. D-1
D.2. ACCESSORIES .............................................................................................................................. D-1
APPENDIX E: CONNECTORS AND JUMPER IDENTIFICATION ................................................E-1
E.1. CONTROLLER MAIN BOARD INTERFACES .........................................................................................E-1
E.2. CONTROLLER MAIN BOARD INTERFACE DESCRIPTIONS ...................................................................E-2
E.3. LED JUMPER PIN OUTS ....................................................................................................................E-3
E.3.1
E.3.2
E.3.3
JP 2 LED .............................................................................................................................E-3
JP 3 LED .............................................................................................................................E-3
JP 4 LED .............................................................................................................................E-3
E.4. COM PORT PIN OUTS.......................................................................................................................E-3
E.4.1
E.4.2
JP 16 RS-232C Port ............................................................................................................E-3
JP 17 RS-232C Port ............................................................................................................E-4
E.5. J3 I2C PORT......................................................................................................................................E-4
E.5.1
E.5.2
I2C Port Pin Outs.................................................................................................................E-4
I2C Connector Pin Name Descriptions................................................................................E-4
E.6. J1 BATTERY CONNECTOR.................................................................................................................E-5
E.7. TTL DEVICE PARAMETERS...............................................................................................................E-5
E.8. IFT- 9011 NULL MODEM .................................................................................................................E-6
E.9. IFT-9012 RS-232C EXTENSION CABLE ...........................................................................................E-6
(NOT INCLUDED IN KIT)............................................................................................................................E-6
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Safety Precautions
Precautions and Instructions
•
•
•
•
•
Prior to powering on the controller, ensure that the correct power range is being
used.
Ensure there is a sufficient cooling airflow to maintain the temperature of the
controller board. If the controller board overheats it may be permanently damaged.
Be sure that the rack cabinet into which the controller will be installed provides
sufficient ventilation channels and airflow circulation around the controller.
Handle controller carefully and gently. Avoid touching PCB boards and connector
pins.
To comply with safety, emission, or thermal requirements, none of the covers or
replaceable modules should be removed. Make sure that during operation, all covers
are securely in place.
•
Provide a soft, clean surface to place your controller on before working on it.
Servicing on a rough surface may damage the exterior of the chassis.
ESD Precautions
Observe all conventional anti-ESD methods while handling system modules. The use of
a grounded wrist strap and an anti-static work pad are recommended. Avoid dust or
debris in your work area.
About This Manual
This manual:
•
•
•
Introduces the SentinelRAID 170 controller.
Describes all the SentinelRAID 170 active components.
Provides recommendations and details about the controller hardware installation
process.
•
•
Briefly describes how to monitor the controller.
Describes how to maintain the controller.
This manual does not:
•
•
Describe components that are not user-serviceable.
Describe the configuration options of firmware, using terminal emulation programs,
or the RAIDWatch GUI that came with your subsystem.
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Who should read this manual?
This manual assumes that its readers are experienced with computer hardware installation
and are familiar with RAID controllers.
Related Documentation
•
Generic Operation Manual
RAIDWatch User’s Manual
These two documents can be found in the CD included with your subsystem package.
•
Conventions
Naming
From this point on and throughout the rest of this manual, the SentinelRAID series is
referred to as simply the “controller” and SentinelRAID is frequently abbreviated as
“SR.”
Warnings
Warnings appear where overlooked details may cause damage to the equipment or result
in personal injury. Warnings should be taken seriously. Warnings are easy to recognize.
The word “warning” is written as “WARNING,” both capitalized and bold and is
followed by text in italics. The italicized text is the warning message.
Cautions
Cautionary messages should also be heeded to help you reduce the chance of losing data
or damaging the system. Cautions are easy to recognize. The word “caution” is written
as “CAUTION,” both capitalized and bold and is followed by text in italics. The
italicized text is the cautionary message.
Notes
Lists
These messages inform the reader of essential but non-critical information. These
messages should be read carefully as any directions or instructions contained therein can
help you avoid making mistakes. Notes are easy to recognize. The word “note” is written
as “NOTE,” both capitalized and bold and is followed by text in italics. The italicized
text is the cautionary message.
Bulleted Lists: Bulleted lists are statements of non-sequential facts. They can be read in
any order. Each statement is preceded by a round black dot “•.”
Numbered Lists: Numbered lists are used to describe sequential steps you should follow
in order.
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Software and Firmware Updates
Please contact your system vendor or visit Infortrend’s FTP site (ftp.infortrend.com.tw)
for the latest software or firmware updates. NOTE that the firmware version installed on
your system should provide the complete functionality listed in the specification
sheet/user’s manual. We provide special revisions for various application purposes.
Therefore, DO NOT upgrade your firmware unless you fully understand what a firmware
revision will do.
Problems that occur during the updating process may cause unrecoverable errors and
system down time. Always consult technical personnel before proceeding with any
firmware upgrade.
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Chapter 1: Introduction
Chapter 1
Introduction
1.1. Product Overview
1.1.1 Product Introduction
This hardware manual briefly introduces the SentinelRAID 170 (SR 170) 320MB/second
SCSI (SCSI-320) -to-SCSI RAID controller shown in Figure 1-1.
Figure 1-1: SentinelRAID SCSI-to-SCSI RAID Controller
The SR 170 controller is designed to meet the high availability, high performance, and
extreme fault tolerant demands placed on RAID controllers operating in today’s most
extreme storage environments. The controller uses RAID technology to endow a host
system with high-speed, fault-tolerant disk storage operation. The SR 170 controller is an
ideal solution for weaving multiple hard drives into one or more contiguous volumes as
well as enhancing storage availability, integrity, and performance.
With high-speed SDRAM modules and firmware in flash memory, a PowerPC® RISC
CPU performs all RAID functions on the SR 170 controller, which supports RAID 0, 1
(0+1), 3, 5, 10, 30, 50, or JBOD RAID storage to any host system equipped with a SCSI-
320 interface. The controller’s operation is completely independent of the host operating
system.
Four VHDCI SCSI connectors at the back of the controller board facilitate the connection
of the four SCSI-320 I/O channels to external hosts and drives. All the I/O channels can
be configured either as host or drive. Other external interfaces include two COM ports
and an RJ-45 Ethernet connector. The COM 1 port is used for serial communications and
Product Overview
1-1
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SentinelRAID 170 Installation and Hardware Reference Manual
connects to a PC hyper-terminal that is used to configure the controller and the subsystem
in which it is embedded. The LAN port enables the controller to connect to the web-
based RAIDWatch™ management program that enables you to manage your controller
from anywhere in the world. Two power supply unit (PSU) connectors ensure the
controller can be connected to dual-redundant power supplies.
An LCD panel is conveniently attached to the front of the controller box and can also be
used for controller configuration and troubleshooting. The LCD panel has three
navigation buttons and three status-indicating LEDs.
1.1.2 Enclosure
The SR controller enclosure is divided into a front and rear section.
1.1.2.1 Controller Box
The controller box contains both the controller board and the separately purchased,
independently installed DIMM modules. Two optional items, the daughter board and the
battery backup unit (BBU) module, are also installed in the controller box. To access the
controller board it is necessary to remove the top cover of the controller box. The top
cover is secured to the controller box with four retention screws, two on each side.
WARNING:
Although the controller board can be accessed by removing the enclosure top cover, it
should always be remembered that the controller board is a very sensitive component
and can be easily damaged. When accessing the controller board it is imperative that
all safety precautions stipulated in Chapter 2 are strictly adhered to.
1.1.2.2 Front Side
The LCD panel located on the front panel is used to configure and manage the controller
and storage devices to which it is attached. It is connected to the controller board with a
ribbon cable.
1.1.2.3 Rear Side
The rear side of the SR controller chassis provides access to the SCSI-320 connectors,
power cord sockets, RS-232C serial port, I2C connector and battery connector.
1.1.2.4 Mounting Holes
The controller can be installed into an industrial standard 5.25-inch half-height canister.
To secure the controller within an enclosure chassis, screws must be inserted through the
enclosure’s mounting rails, into the four mounting holes on the sides of the controller.
1-2
Product Overview
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Chapter 1: Introduction
Figure 1-2: SR Enclosure Canister Mounting Holes
1.2. SR Components
1.2.1 LCD Panel
Figure 1-3: LCD Panel
The LCD panel shown in Figure 1-3 consists of a 16x2 character LCD screen with two
navigation buttons (labeled as W V in Figure 1-3), three status-indicating LEDs
(POWER, BUSY and ATTEN), an enter button (labeled ENT) and an escape button
(labeled ESC). The LCD front panel provides full access to all RAID configurations and
monitoring. After powering up the controller, the initial screen will show the controller
model name. A different name may be assigned for the system or different arrays. This
will enable easier identification in a topology with numerous arrays.
1.2.2 Controller Board
WARNING:
The controller board is a very sensitive component that can be easily damaged. When
working with the controller board make sure all safety precautions are strictly
adhered to. Failure to adhere to these safety instructions can result in severe damage
to the controller board.
The heart of the SR 170 controller is the SCSI-to-SCSI controller board (see Figure1-4).
The controller board has four SCSI-320 I/O channels (CH0, CH1, CH2 and CH3). Two
SR Components
1-3
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SentinelRAID 170 Installation and Hardware Reference Manual
upgrade sockets allow for the installation of a daughter board that facilitates the addition
of four SCSI-320 I/O channels. All I/O channels (both base channels and expansion
channels) can be configured as either host or drive channels.
The controller board also comes with a 68-pin SDRAM DIMM socket that facilitates the
installation of a 64MB to 1GB SDRAM DIMM module. A variety of other onboard
connectors and jumpers facilitate the connection of a variety of accessory components
like battery module charger boards. These jumpers and connectors are listed in Table 1-1.
Connector Type Label
Description
Daughter Board
Connectors
JP1 and JP13
These two connectors are used if an
expansion daughter board is being installed
on the controller module.
Battery Charger
Board Connector
JP6 and JP11
These connectors are used to mount the
optional battery charger board onto the
controller board.
LED Connectors
JP2, JP3, and JP4
Partner Failed! (JP2), Not Ready (JP3) and
Ready (JP4)
Not Mask Interrupted
(NMI)
JP5
JP7
Only used by Infortrend for debugging.
Reset
Used to reset the controller
LCD Type Selection
LCD Connector
JP10
JP14
Only used by Infortrend for testing.
This jumper is used to connect the LCD
screen to the controller board with a ribbon
cable.
Restore Firmware
Default
JP19
JP22
This jumper is used to restore the firmware
default settings.
Front Panel Fan
Status Detect
Helps to determine the operational status of
the fans at the back of the front panel.
Table 1-1: Controller Jumpers and Connectors
The jumpers listed in Table 1-1 above are all located at the front of the controller board.
(See Figure1-4)
1-4
SR Components
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Chapter 1: Introduction
Figure1-4: Controller Board (Front)
1.2.3 Interfaces
The external interfaces (see Figure1-5) are all located at the back of the controller board
and are easily accessible at the rear of the controller enclosure. These interfaces include
the SCSI-320 I/O channel connectors, power cord sockets, RS-232C serial port
connector, I2C connector and battery connector. The backplane interfaces are fully
described in Table 1-2. Their locations are shown in Figure1-5.
SR Components
1-5
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SentinelRAID 170 Installation and Hardware Reference Manual
Connector Type
Label
Description
SCSI-320 Connectors
CH0, CH1, CH2 and CH3 68-pin VHDCI connectors that facilitate the
connection of the SCSI-320 I/O channels to
external devices.
I2C Connector
J3
I2C supports the monitoring of remote
enclosure devices.
Battery Connector
J1
Allows an optional battery backup unit (BBU)
to be connected to the system.
COM1 and COM2
Connector
JP16 and JP17
These connectors are used for serial port
communications. One COM port (COM1) can
be used for terminal emulation.
SCSI Terminators
JP20
JP23
This 8-pin jumper is used to terminate the
different I/O channels.
RJ-45 Ethernet
Connector
This connector provides users with access to
LAN and web-based management of the
controller.
Table 1-2: Controller Board Interfaces
Figure1-5: Controller Board (Rear)
1-6
SR Components
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Chapter 1: Introduction
1.3. SR Accessory Items
The following items are not installed on the controller but come in the accessory box and
can be used with the SR controller.
1.3.1 Serial Cable
The IFT-9512 RS-232C serial cable allows the serial RS-232C serial communications
connector at the rear of the board (J2) to be connected to a PC hyper-terminal, which
enables a RAID array manager to easily manage and configure the storage array to which
the controller is connected.
1.3.2 Null Modem
The null model is a signal converter; please refer to Appendix D for more details.
1.3.3 Ethernet Cable
The receptacle side is shaped like a DB-9 connector and can be attached to the back panel
of the enclosure using the mounting positions of a serial port header to connect to the
outside of the enclosure.
1.3.4 Bezel Key
The IFT-9531 is used to remove the LCD front panel from the controller canister. The
only time the LCD front panel needs to be removed is when the controller board needs to
be accessed.
1.4. Separately Purchased Accessory Items
The following items are required to run the SR controller. You must purchase them
separately and install them yourself.
1.4.1 DIMM Modules
The SR controllers support PC-133 SDRAM DIMM modules with ECC support and
capacities between 128MB and 1GB. DIMM modules must be separately purchased and
installed by the end user. The SDRAM DIMM module socket is located on the controller
board and can only be accessed by removing the top cover of the controller enclosure.
NOTE:
Although the hardware is able to support a minimum SDRAM DIMM module size of
128MB, it is recommended that DIMM modules with a minimum capacity of 256MB
are used.
SR Accessory Items
1-7
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SentinelRAID 170 Installation and Hardware Reference Manual
1.4.2 SCSI Cables
SCSI cables are required to connect the 68-pin connectors on the backplane to the SCSI-
320 drives and SCSI-320 hosts. When purchasing SCSI-320 cables, select cables of the
highest quality that are produced by a reputable manufacturer. To ensure optimum SR
controller performance it is necessary to use proper, high quality, durable SCSI-320
cables. Failure to do so will result in downgraded performance. Please contact the SR
controller vendor for a list of compatible cables.
1.4.3 Power Connector
Two four-pin power cord connectors are located on the right and left sides at the back of
the controller board. These connectors facilitate the power supply connection.
1.4.4 I2C Signal Compatible Cables
These cables are required for enclosure device monitoring.
1.5. Optional Items
1.5.1 Battery Backup Unit (BBU)
The controller operates using cache memory. However, if the controller operates with
write-back caching and a power failure occurs, the cache memory may contain buffered
data that has not been made permanent on hard disks.
The buffered data is not retrievable when power returns unless backup power has been
provided. The combination of the optional, separately purchased IFT-9070D battery
charger board (Figure 1-7) and IFT-9010D BBU module (Figure 1-6) allows two battery
packs to be daisy-chained for longer backup time and each BBU can sustain the cache
memory for 72 hours. The IFT-9519D extension cable can be used to cascade multiple
cell packs or to extend the connection between the controller and cell pack.
Each battery in the cell pack has a storage capacity of 3A/H when fully charged, and
three cells are used for a total of 3.6V source. The charger circuit on the IFT-9070D
provides a 160mA charge until either a ninety-minute time limit has been surpassed or
the temperature limit of 65ºC is reached. After fast charging, the charger will shift to a
trickle stage until the charge is full.
1-8
Optional Items
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Chapter 1: Introduction
Figure 1-6: IFT-9010D BBU Module
Figure 1-7: IFT-9070D Battery Charger Board
1.5.2 Daughter Board Expansion
The installation of an optional daughter board makes four additional SCSI-320 I/O
channels available.
1.6. Environmental Requirements
When installing and running an SR controller, the following environmental
considerations must be taken into account.
1.6.1 Power Supply Requirements
Two power cord connectors facilitate the connection of two redundant power supply units
(PSUs). If redundant PSUs are used and one PSU fails, the second PSU continues to
supply power to the SR controller. The SR power requirements are listed below:
Input Voltage
+5VDC, +12VDC
Power Consumption (5V)
ƒ
ƒ
ƒ
Full Loading:
Idle:
Power-up:
5.5A
3.5A
4A
When purchasing a PSU, the power requirements listed above must be taken into
consideration. Please contact the SR controller vendor for a list of compatible PSUs.
Environmental Requirements
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1.6.2 Cooling Requirements
Proper SR controller cooling is required to ensure that the temperature of the critical
controller board components does not exceed the operational temperature range. The
main components on the controller board that can overheat are:
ASIC 133
CPU
SCSI Chip(s)
The temperature of these items cannot exceed 80°C. Of the three items listed, the CPU
will heat up the most. To pre-empt overheating of the CPU, a heat sink has been mounted
on top of the CPU. The heat sink is separated from the CPU with thermal grease.
Prior to installing and powering on the SR controller, it is imperative that you ensure that
there is sufficient cooling of the controller.
1.7. SR Controller Monitoring
The SR controller comes with a number of different monitoring methods that enable you
to constantly be updated on the status of the controller and the storage array to which it is
connected.
1.7.1 I2C Bus
The I2C bus allows for the status monitoring of a number of different devices like power
supplies and cooling fans.
1.7.2 LED Indicators
The LCD front panel has three LED status indicators that show that the power is on,
when there is activity on the I/O channels, and when an error message appears on the
LCD screen itself.
1.7.3 Firmware (FW) and RAIDWatch GUI
Firmware: The firmware is pre-installed software used to configure the controller. The
FW can be accessed through either the front panel LCD module or a terminal emulation
program that is installed on an external computer connected to the host.
RAIDWatch: RAIDWatch is a premier web-based graphics user interface (GUI) that can
be installed on a remote computer and accessed via the web.
1-10
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Chapter 1: Introduction
1.7.4 Audible Alarms
The SR controllers come with audible alarms that will be triggered when certain active
components fail or when certain thresholds are exceeded. If you hear an audible alarm
being emitted from the SR controller it is imperative that you determine and rectify the
problem immediately.
WARNING:
Failing to respond when an audible alarm is heard can lead to permanent damage of
the SR controller. If an audible alarm is heard, rectify the problem as soon as possible.
SR Controller Monitoring
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1-12
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Chapter 2: Installation
Chapter 2
Installation
2.1. Installation Overview
CAUTION:
Please note that the installation instructions described in this manual should be
carefully followed. Failure do to so may result in damage to the system.
2.2. Installation Prerequisites
1. Static- free installation environment: The SR controller must be installed in a static
free environment to minimize the possibility of electrostatic discharge (ESD)
damage. (See Section 2.3.2).
2. Component check: Before the SR controller is installed, you should confirm that you
have received all the components on the Unpacking List during the unpacking
process. (See Section 2.5 )
3. Memory modules: Modules must be separately purchased and installed. (See Section
2.7)
4. Hard drives: SCSI-320 hard drives must be purchased separately prior to installation
of the SR controller.
5. Cabling: All the SCSI cables that are used to connect the SR controller to the host
and drives must be purchased separately. (See Section 4.2.1)
2.3. Safety Precautions
2.3.1 General Considerations
♦
♦
♦
Power source: Make sure the power source is within the correct power range prior to
powering on.
Earth: Always make sure the controller has a safe electrical earth connection via the
power cords or chassis ground on the rack/cabinet.
Ventilation: Be sure that the rack cabinet provides sufficient ventilation channels
and airflow circulation throughout the enclosure in which the SR controller is
installed.
Installation Overview
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♦
Working surface: Provide a soft, clean surface on which to place your controller
before working on it. Servicing on a rough surface may damage or scratch the
enclosure.
2.3.2 Static-free Installation
Static electricity can damage the electronic components of the system. Most of the
controllers that are returned for repair are the result of improper installation and ESD
damage. To prevent ESD damage, follow these precautions before touching or handling
any of the components:
♦
When installing the SR 170, you should wear an anti-static wrist band or touch a
grounded metal surface to discharge any static electricity form your body.
♦
♦
Avoid carpets, plastic, vinyl, or styrofoam in the work area.
Handle any components by holding its edges or metal frame. Avoid touching PCB
boards or connector pins.
2.4. Hardware Installation Preparation
2.4.1 Tools or Equipment Needed for Installing the Subsystem
The only tools necessary are #2 cross-head Phillips and 3/16-inch slotted screwdrivers.
2.4.2 Planning Before Installation
♦
Module locations: Make sure you are aware of the related positions of each plug-in
module and interface.
♦
I/O path configurations: The SR controllers have four SCSI-320 I/O channels
interfaced through four SCSI ports. The installation of an optional daughter board
increases the available SCSI-320 I/O channels by four. All I/O channels can be
configured as either host or drive channels.
♦
♦
I/O port cabling: All series models are equipped with 0.8mm VHDCI SCSI
connectors. Please contact Infortrend technical support for an updated list of host
adapters that have been tested and proved compatible with the SR controller series.
Power supplies: Two power cord connectors ensure that redundant power supplies
can be connected to the SR controller so that in the event that one power supply fails,
the second power supply will continue to supply sufficient power to run the SR
controller.
2-2
Hardware Installation Preparation
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Chapter 2: Installation
2.4.3 General Installation Procedure
If the steps listed below are followed, the installation of the SR controller should be
smooth and efficient. Detailed, illustrated instructions for each step are given in the
following sections.
CAUTION:
To ensure that the system is correctly installed, please follow the steps outlined below.
If these steps are not followed, the hardware may accidentally be installed incorrectly.
Step 1.
Step 2.
Unpack. Unpack the SR controller and make sure that all the components
that are meant to come with the subsystem have indeed arrived. (See
Section 2.5)
Install the DIMM module. The SR controller does not come with pre-
installed DIMM modules. Separately purchased DIMM modules need to
be installed. (See Section 2.7)
Step 3.
Step 4.
Install the optional BBU. Install the optional BBU prior to operating the
SR controller. (See Section Error! Reference source not found.)
Install the optional daughter board. If you require more than two SCSI-
320 I/O channels, the optional daughter board with the appropriate
expansion channels must be installed. (See Section 2.9)
Step 5.
Step 6.
Step 7.
Rack/Cabinet installation. Install the SR controller into an appropriate
cabinet or rack.
Connect the host. Connect the user-configured host channels to the host
computer.
Connect the drives. Connect the user-configured drive channels to the
hard drives.
2.5. Unpacking the Controller
NOTE:
A detailed packing list is located in Appendix D of this manual.
When unpacking the controller, please ensure that all of the items listed on the unpacking
list that came with the controller are present. If any of the listed items are missing, please
contact the controller vendor immediately. A complete unpacking list is given in
Appendix D.
Unpacking the Controller
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2.6. Accessing the Controller Board
2.6.1 Overview
WARNING:
The controller board is a very sensitive component and must therefore be handled with
extreme care. Before accessing the controller board, please ensure that all anti-static
precautions previously stipulated are strictly adhered to.
The controller board is located in the controller box and should only be removed from the
controller box if the controller board fails. However, it is necessary to access the
controller board in order to install the DIMM module, optional BBU module and the
optional daughter board. To access the controller board, remove the top cover of the
controller box. Replace the cover after the different components have been correctly
installed.
2.6.2 Removing and Replacing the Chassis Top Cover
♦
Removing the top cover: The chassis top cover is secured to the chassis with four
retention screws (two on each side). To remove the top cover, remove these four
retention screws (see Figure 2-1). Once they have been removed, gently lift the top
cover up to expose the controller board.
Figure 2-1: Remove the top cover
♦
Replacing the top cover: After the controller board components have been installed,
the chassis top cover must be replaced. To do this, make sure the front panel LCD
screen is properly positioned. Next, ensure the top cover is correctly oriented. Notice
that the two rectangular holes in the top cover are located at the front and must be
installed in this way. Once correctly oriented, gently place the top cover on the
chassis and re-insert the four previously removed retention screws (two on each
side).
2-4
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Chapter 2: Installation
2.7. Memory Module Installation
The SR controller comes without a DIMM memory module. It is therefore necessary for
a separately purchased DIMM module to be installed.
2.7.1 Selecting the DIMMs
When purchasing the DIMM modules, the following factors must be considered:
♦
♦
Supported SDRAM DIMM modules: The SR controllers support SDRAM DIMMs
with memory capacities between 128MB and 1GB with ECC support.
Installation considerations: When installing the SDRAM DIMM module, it is
necessary to handle the controller board. The controller board is susceptible to
damage and must therefore be handled with extreme care. ALL anti-static
precautions specified in Section 2.3.2 must be strictly adhered to.
♦
♦
Secure installation: When installing the DIMM module, make sure that the DIMM
module is firmly in place prior to installing the controller. If the DIMM module is
not firmly in place, the controller will not be able to run and will need to be removed
and the DIMM module correctly installed.
Purchasing considerations: When purchasing an SDRAM DIMM to install on the
controller board, contact the SR controller vendor.
2.7.2 DIMM Module Installation Procedure
To install a DIMM module into the SR controller, please follow these steps:
Step 1.
Step 2.
Remove the chassis top cover. Before installing the DIMM module,
remove the chassis top cover. For further instructions on how to remove
the top cover, please refer to Section 2.6.2.
Insert the DIMM module. Once the chassis top cover has been removed,
install the DIMM module. To do this, first push the white clips on either
side of the DIMM module in an outward direction. Next, align the
DIMM module with the DIMM slot. Then, gently push the DIMM
module into the slot. The white clips should automatically close and
secure the DIMM module into the DIMM slot. (See Figure 2-2)
Memory Module Installation
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Figure 2-2: Install the DIMM Module
Step 3.
Replace the chassis top cover. Once the DIMM module has been
installed and if no other items (e.g., BBU module or expansion daughter
board) are being installed on the controller board, reinstalled the chassis
top cover. For further instructions on how to reinstall the chassis top
cover, please refer to Section 2.6.2.
2.8. Battery Backup Unit (BBU) Installation
2.8.1 About the First BBU Installation
♦
It is possible that the linking cable connecting the IFT-9070D charger board and IFT-
9010D cell pack has contact with the components on the surface of the controller
main board. While routing this cable from one side to the other, please note that
some chip surfaces must be avoided. The surface temperature on chips such as SCSI
processors may reach high temperatures and damage the plastic shielding on a
linking cable.
♦
A battery has a tendency to "remember" its capacity. In order to make full use of the
capacity of your battery cells, allow the battery cell pack to become fully charged
when installed for the first time. It will take 24 hours for the battery to become
completely charged for the first time. Once the battery module is installed and the
controller is powered on, the battery will automatically start charging. Do not power
down the controller during the first 24 hours after the BBU has been installed. If the
controller power is turned off and there is unwritten data in the cache memory, the
battery will start discharging.
♦
♦
Inspect the BBU regularly and replace it every TWO years; use an official battery
pack replacement and only use them with specified RAID controllers.
When replacing the controller’s DIMM module, be sure to disconnect the BBU.
Battery Backup Unit (BBU) Installation
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Chapter 2: Installation
♦
♦
During normal use, an empty cell pack takes about 20 hours to recharge.
Disconnect the BBU if there is a long storage period before deployment. Extreme
storage conditions should be avoided (i.e., temperatures <-20ºC or >65ºC, relative
humidity >65%±10%).
2.8.2 BBU Installation Procedure
Step 1.
Step 2.
Remove the chassis top cover. Before installing the BBU module,
remove the chassis top cover. For further instructions on how to remove
the top cover, please refer to Section 2.6.2.
Remove the battery connector cap. The connector that connects the BBU
is covered with a cap that must be removed. Remove this cap by gently
pulling it up. Put the cap in a safe place in case it needs to be replaced at
a future time. (See Figure 2-3)
WARNING
The battery cap must be put in a safe place. If the BBU module is removed from the
controller board, the controller will not operate unless the BBU cap is reinstalled
on the board-to-board connector from which it was removed.
Figure 2-3: Remove the Battery Connector Cap
Step 3.
Install the battery charger board. The battery charger board comes with
two board-to-board connectors. Align the appropriate connectors with
jumper 7 (JP7) and jumper 2 (JP2) on the controller board. Once these
connectors are aligned with the jumpers, gently insert them into the
jumpers. (See Figure 2-4)
Battery Backup Unit (BBU) Installation
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Figure 2-4: Install the Battery Charger Board
Step 4.
Connect the BBU cable. The BBU cable can be connected to a white, 4-
pin header on either the BBU charger board (see Figure 2-5) or at the
back of the controller board (labeled J4) (see Figure 2-6). If the BBU
cable is going to be connected to the charger board, the connections
should be made now. If the BBU is going to be connected to the
connector at the back of the board, the connection can be made now or
after the chassis top cover has been replaced.
Figure 2-5: Connect the BBU to the BBU Charger Board
2-8
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Chapter 2: Installation
Figure 2-6: Connect the BBU to the Connector at the Back of the Controller Board
Step 5.
Replace the chassis top cover. Once the battery charger board has been
installed on the controller board, the chassis top cover must be
reinstalled. For further instructions on how to reinstall the chassis top
cover, please refer to Section 2.6.2.
Step 6.
Attach the BBU to the enclosure. Integrators can use the four, pre-
drilled mounting holes on the BBU to attach the BBU to a custom
designed enclosure.
2.9. Daughter Board Installation
2.9.1 About Daughter Board Installation
♦
♦
The optional, separately purchased daughter board allows you to add an additional
four SCSI-320 I/O channels to the SR controller.
The daughter board, like the controller board, is a very sensitive component and must
be treated carefully. All anti-static precautions must be strictly adhered to and all the
controller safety precautions observed.
2.9.2 Daughter Board Installation Procedure
Step 1.
Remove the chassis top cover. Before installing the daughter board,
remove the chassis top cover. For further instructions on how to remove
the top cover, please refer to Section 2.6.2.
Step 2.
Install the daughter board. The daughter board is mounted on four pre-
installed spacers located in the middle of the controller board, just in
front of the SCSI connectors. Place the daughter board onto the docking
connectors so that the retention screw holes on the daughter board are
clearly aligned with the spacers.
Daughter Board Installation
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Figure 2-7: Install the Daughter Board
Step 3.
Insert the retention screws. Once the daughter board has been mounted
on the board-to-board connectors, insert the retention screws that came
with the daughter board. (See Figure 2-8)
Figure 2-8: Install the Daughter Board Retention Screws
Step 4.
Replace the chassis top cover. Once the daughter board has been
installed on the controller board, reinstall the chassis top cover. For
further instructions on how to reinstall the chassis top cover, please refer
to Section 2.6.2.
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Chapter 3: Controller Monitoring
Chapter 3
Controller Monitoring
3.1. Controller Monitoring Overview
The SR controller is equipped with a variety of self-monitoring features that help keep
controller managers informed of the controller’s operational status. These monitoring
features provide vital feedback that helps you maintain the operational integrity of your
controller. Prompt response to warnings and failure notifications will improve the overall
operation and help ensure the longevity of the SR controller.
Self-monitoring features include:
♦
Management firmware (FW): The SR controller comes with pre-installed FW
(version 3.31 or above). Device status information can be obtained from the FW.
This FW can be accessed using either the LCD panel or a PC hyper-terminal. The
FW is fully described in the Generic User's Manual that came with the subsystem.
Please refer to this manual for further details.
♦
RAIDWatch: RAIDWatch is a fully integrated Java-based Graphics User Interface
(GUI) that came with the controller and can be used to monitor the controller
remotely. You can use the powerful Notification Process Center (NPC) sub-
module to keep you informed over a variety of communication devices such as fax,
pager, e-mail, etc. The installation and operation of RAIDWatch is fully described
in the RAIDWatch User’s Manual. Please refer to this manual for further details.
♦
♦
LEDs: Device status indicating LEDs are placed on the front panel of the SR
controller. These LEDs inform you of the integrity and status of different controller
items. You should become familiar with these LEDs and be aware of their
functions.
Audible alarm: An audible alarm is present on the controller board and will be
triggered if any of a number of threatening events occur. These events usually
jeopardize the functional and operational integrity of the controller board and must
be heeded at all times. Events such as a breach of the temperature threshold will
trigger the alarm and if an onsite controller manager is present, the manager should
use either the LCD panel or the PC hyper-terminal to determine the cause of the
alarm and take the appropriate corrective measures.
♦
I2C: The I2C bus monitors the operational integrity of a variety of components.
Controller Monitoring Overview
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Controller monitoring is a necessary part of controller management. If failure events or
other disruptive events are detected and reported, controller managers must take the
appropriate action to rectify the problem. Failure to act in a properly specified manner to
a system event (like overheating) can cause severe and permanent damage to the
controller.
3.2. Status-indicating LEDs
The front panel LCD panel comes with three status-indicating LEDs. The LEDs on the
front panel are marked, from top to bottom, PWR, BUSY and ATTEN, as shown in
Figure 3-1 below. The definitions of these LEDs are shown in Table 3-1.
Figure 3-1: LCD Panel LEDs
LED Name Color
Status
ON indicates that power is being supplied to the controller.
PWR
Blue
White
Red
OFF indicates that no power is being supplied to the
controller.
ON indicates that there is activity on the host/drive channels.
BUSY
ATTEN
OFF indicates that there is no activity on the host/drive
channels.
ON indicates that a component failure/status event has
occurred.
OFF indicates that the controller and all its components are
operating correctly.
Table 3-1: LCD Panel LED Definitions
3-2
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Chapter 3: Controller Monitoring
3.3. Audible Alarm
Different controller environmental and operational parameters (i.e., temperature, etc.)
have been assigned a range of values within which they can fluctuate. If either the upper
or lower thresholds are exceeded, an audible alarm will automatically be triggered. The
alarm will also be triggered when an active component of the SR 170 controller fails. If
the SR 170 controller manager is onsite and is alerted by the alarm, the manager needs to
read the message on the LCD screen or on the PC terminal to determine what has
triggered the alarm. After determining what has occurred, the SR 170 controller manager
must take appropriate actions to rectify the problem.
WARNING:
Whenever an alarm is triggered, you must determine the problem. If the audible alarm
is ignored or not taken seriously and the problem is not rectified, permanent damage
to the controller can result.
3.3.1 Default Threshold Values
Table 3-2 shows the default threshold values for the SR controller. If any of these values
are surpassed the alarm will sound:
Parameter
+3.3V
Upper Threshold Lower Threshold
+3.6V
+5.5V
+13.2V
90ºC
+2.9V
+4.5V
+10.8V
0ºC
+5V
+12V
CPU Temperature
Board Temperature
90ºC
0ºC
Table 3-2: Default Threshold Values
The thresholds in Table 3-2 are the default threshold values and can be changed. For
instructions on how to change these values, please refer to the Generic Operation
Manual that came with your system.
2
3.4. I C Port (Enclosure Monitoring)
The I2C interface is designed for Infortrend Simple Enclosure Management Service
(ISEMS). FW supports monitoring of remote enclosure devices (power, fan rotation
speed, temperature, etc.) through SAF-TE, S.E.S, or I2C interface. Via the I2C interface,
the controller collects signals from remote sensors and notifies the system administrator if
the signals exceed any critical thresholds.
Audible Alarm
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Chapter 4: Controller Connections and Operation
Chapter 4
Controller Connections and
Operation
4.1. SentinelRAID Connection
4.1.1 I/O Channel Configuration
All of the I/O channels can be configured as either host channels or drive channels. Note
that at least one I/O channel on the SR 170 controller must be configured as a host
channel and the other channels can all be configured as drive channels.
4.1.2 SCSI Cables
Separately purchased SCSI-320 compatible cables, not longer than 12 meters, must be
used for host and drive connection. Purchase SCSI-320 cables of the highest quality
produced by a reputable manufacture. It is necessary to use proper, high quality, durable
SCSI-320 cables in order to ensure optimum SR controller performance. Failure to do so
will result in downgraded performance.
SCSI cables that are used to connect the SR 170 controller to external SCSI-320 devices
should be in compliance with the specifications shown in Table 4-1.
Electrical
Impedance
120ΩΚ10%
Capacitance
15.9 pf / ft @ 1MHz
1.59ns / ft nom
Propagation Delay
DC Resistance
Delay Skew
95Ω / 1000 ft @ 20°C
0.035ns / ft (max.)
Table 4-1: SCSI-320 Cable Electrical Specifications
4.1.3 Host Connection
I/O channels configured as host channels can be connected to a SCSI-320 host computer
using an industry-standard SCSI-320 cable.
SentinelRAID Connection
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4.1.4 Drive Connection
Each drive channel can be connected to up to fifteen SCSI-320 hard drives. The
maximum number of drives that can be connected to each controller is shown in Table
4-2 below:
Model
Host Channels
Drive Channels
Maximum Number of Drives
SR 170
1
1
3
7
45
SR 170
9284U4
+
IFT-
105
Table 4-2: Maximum Number of Drives
4.1.5 SCSI Termination
It is important that both the host and drive SCSI cables are properly terminated. If these
cables are not properly terminated, then signals being transmitted along the SCSI bus
may become corrupted. When multiple drives are connected together (as shown in the
topologies below) the SCSI terminators on the individual drives must be disabled.
4.1.6 Unique IDs
SCSI devices connected on the same channel have their own unique ID number. This
number allows these individual devices to be recognized by the controller when
executing I/O commands from the host computer.
4.2. SR 170 Topologies
4.2.1 Single Host Computer
Connection to a single host is shown in Figure 4-1. The single host computer manages all
of the logical drives (LDs). In the topology shown in Figure 4-1 the channels are
configured as shown in Table 4-3.
Channel
CH0
Configured as…
Host Channel
Drive Channel
Drive Channel
Drive Channel
CH1
CH2
CH3
Table 4-3: SR 170 Single Host Channel Configurations
4-2
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Chapter 4: Controller Connections and Operation
Figure 4-1: Single Host Connection
SR 170 Topologies
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4.2.2 Dual Host Connection
In Figure 4-2 two channels (CH0 and CH1) are configured as host channels and two
channels (CH2 and CH3) are configured as drive channels. The firmware (FW) can be
used to create LDs. These LDs must in turn be mapped to the host channels.
Figure 4-2: Dual Host Connection
♦
Creating redundant host paths: If access to data is a critical requirement,
redundant data paths to different LDs or logical volumes (LVs) can be created. To
do this, logical units (LDs or LVs) are mapped to both the host channels (CH0 and
CH1 in Figure 4-2). This will ensure that if one host computer fails, the second
host computer will be able to access the logical units on that host computer.
NOTE: To create dual-redundant data paths on the host side, it is necessary for
third-party failover software to be installed on the host computer(s).
♦
Physically isolating one OS system from another: The multiple-host configuration
can also be applied when the array is shared by two or more systems. Using each
host channel for a host adapter on different host computers can physically isolate
one OS system from another.
This configuration is applied when two systems cannot share the same SCSI bus as
the access route to storage. Unless some file system "lock manager" is available,
physical drives should be configured into different logical drives or logical
volumes, and each logical unit should be mapped to IDs/LUNs on each host
channel. In this way, each host computer will be accessing separate logical units.
4-4
SR 170 Topologies
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Chapter 4: Controller Connections and Operation
4.2.3 Expansion
The installation of an optional daughter board can expand the number of available SCSI-
320 I/O channels by four. With the addition of the daughter board, the SR 170 will then
have eight SCSI-320 channels available. These expansion channels are connected in the
same way as described above. They can all be configured as either host or drive channels.
4.3. Controller Integration
Figure 4-3: Drive Channel and Host Channel Connection
Figure 4-3 above is an example of connecting the RAID controller to the drives and the
host computer. Since all channels can be configured as host or drive channels, a variety
of host and drive configurations are available. The on-board terminator has been enabled
on the controller side of the I/O channels. On the other end of the SCSI cable, an external
terminator is applied. Termination on all SCSI drives should be disabled.
Integrators may choose a different interface for the enclosure device management.
Connect remote devices (sensors for fan rotation, power supply, temperature, etc.,
connected through a chip) on a SCSI bus (SAF-TE) or via the I2C interface as displayed
in Figure 4-3. Controller firmware has embedded utilities to help configure these
devices.
Controller Integration
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NOTE:
It is recommended to use the embedded terminators on host or drive channels by
setting DIP switches, and then installing an external terminator on the other end of
your SCSI cable. If a drive fails, data traffic will remain unaffected. Please note of the
following:
1. Refer to the installation documents that came with your drives for information on
jumper settings.
2. Set a unique SCSI ID address on each drive. Avoid ID 7 – this is a default
reservation for the controller. In redundant controller mode, each of the two
controllers takes an ID on each SCSI bus. The combination can be ID 6 and ID 7
or ID 8 and ID 9.
4.4. Other Connections
4.4.1 Power Connection
The power input and connection of the controller is exactly the same as those for hard
disk drives. Be sure to connect both connectors. The power connection is shown in
Figure 4-4 below.
Figure 4-4: PSU Connection
4.4.2 Connecting RS-232C Terminal Emulation
The controller can be configured via a PC running a VT-100 terminal emulation program
or a VT-100-compatible terminal. The provided combo cable (IFT-9512) converts the
RS-232 signals from the 20-pin header into the two 9-pin D-Sub male connectors. The
pin layout of the 9-pin connectors is similar to that of a PC’s serial port and is set as a
DTE device. Proper cable connection is displayed in the following diagram. The DB-9
connectors of the IFT-9512 cable are marked as “COM 1” and “COM 2.” Please use the
connector marked as “COM 1” for terminal emulation.
Connect COM 1 to the included null modem (IFT-9011) and connect the other end of the
null modem to the outside of your enclosure or to an external RS-232 cable. COM ports
can also connect to a modem for remote configuration. COM 2 cannot be used to
download firmware.
4-6
Other Connections
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Chapter 4: Controller Connections and Operation
Host Computer
Connect to the RS-232C
port of the host computer
IFT-9512 cable
1
Controller
IFT-9011 Null Modem
2
RS-232 Cable
Customer
Provided
(Red stripe)
1
IFT-9512 cable
2
1
2
3
4
9
5
1
2
3
4
9
5
6
7
8
6
7
8
COM 1
COM 2
Figure 4-5: RS-232C Connection
2
Two SCSI ports on the six channel models (ES U16UG4010-62-0030 and ES U16UG4010-65-0030) can be used for capacity expansion to cascade
a
RAID system with
a
JBOD. Connect the SCSI ports on the controller box’s face plate (marked as CH4 and CH5) to ports on
a
JBOD. No termination setting is necessary, and there is no limitation as to which expansion port should be connected with which port on
a
JBOD. To be able to monitor the status of different JBOD components it is necessary to use
a
JBOD that can be connected to the
I
C
port on the ES U16U subsystem. See Error! Reference source not found..
4.5. Power On
Once all the components have been installed in the SR controller, the host channels have
been connected to the host and the drive channels have been connected to the SCSI-320
drives, the controller can be powered on.
4.5.1 Check List
BEFORE powering on the SR controller, please check the following:
ꢀ
ꢀ
Memory module: Make sure that a memory module has been correctly installed
on the controller board.
BBU modules: If installed, make sure the BBU charger board and the BBU
battery pack have been installed correctly.
ꢀ
ꢀ
ꢀ
Host computers: Host I/O channels have been connected to the host computers
Hard drives: Hard drives have been connected to the drive I/O channels.
Power module connection: The PSU connectors at the back of the controller
board have been connected to an appropriate PSU.
Power On
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ꢀ
Ambient temperature: All the controller components have been acclimated to
the surrounding temperature.
4.5.2 Power On Sequence
When powering on the SR 170 controller, please follow these steps.
1. Power on the hard drives
The SCSI-320 hard drives that have been connected to the SR controller should be
powered up first. For the hard drive power on procedure, please refer to the
documentation that came with the hard drives.
2. Power on the SR controller
Once the hard drives have been powered on, power on the controller. To do this, turn
on the power supplies that have been connected to the PSU connectors at the back of
the controller board.
3. Power on the host computers
The host computers should be the last devices that are turned on. Please refer to the
manual that came with your host computers to see their own power on procedures.
4.5.3 LCD Screen
When powering on the controller, the following messages should appear on the front
panel LCD screen. Wait for the front panel LCD to show READY or No Host LUN
before the host boots up. Refer to Figure 4- 1 on how to read the screens.
Indicates Firmware version
Model Name
SR 170
Ready
V3.31F
Status/Data Transfer Indicator
Figure 4- 1: The LCD Startup Screen
The LCD screen startup sequence is shown and described in the sequence below.
This screen appears when the PSUs are turned on.
Initializing….
Please Wait...
4-8
Power On
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Chapter 4: Controller Connections and Operation
This screen appears after the initialization process. It
clearly shows the model name.
SR 170
Modem Not Config
v3.31F
SR 170
v3.31F
256MB RAM, Wait…
System is ready. You can now start to configure the
controller.
SR 170
No Host LUN
v3.31F
4.6. Power Off Procedure
If you wish to power down the SR controller, please follow these steps:
NOTE:
If you wish to power down the SR controller, please ensure that no time-
consuming processes, like a “logical drive parity” check or a
“background scrub,” are running.
1. Stop I/O access to the system
Use the software provided on the host computer to stop all I/O access to the SR
controller. Please refer to the user manual that came with your host computer.
2. Disconnect the host
The host must be disconnected from the controller. To do this, disconnect the cables
from both the host and the SR controller.
3. Flush the cache
Use the “Shutdown Controller” function to flush all cached data. This prepares the
controller to be powered down.
4. Turn off the power
Turn off the PSUs that supply power to the SR controller. Once the RAID controller
has been powered down, other devices that are connected to the controller may be
powered down.
Power Off Procedure
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Chapter 5: Controller Maintenance
Chapter 5
Controller Maintenance
5.1. Controller Maintenance Overview
5.1.1 About Controller Maintenance
Constant monitoring and maintenance of your SR 170 controller will minimize downtime
and preserve the working integrity of the controller for a longer period of time. If any of
the controller components fail, they must be replaced as soon as possible.
5.1.2 User Serviceable Components
Most of the controller components are user serviceable, i.e., replaceable. The following
components can be replaced in case of failure:
♦
♦
♦
♦
Daughter board
DIMM module
BBU module
BBU charger board
The LCD panel and the controller board very seldom fail and it is therefore not necessary
to replace them. If either of these items fails, the whole controller box needs to be
replaced.
5.1.3 Controller Maintenance Considerations
♦
Qualified engineers who are familiar with the SR controller should be the only ones
who perform maintenance operations on the controller. If you are not familiar with
the SR controller or with RAID appliance maintenance in general, it is strongly
advised that you refer SR controller maintenance to a suitably qualified
maintenance engineer.
♦
When performing maintenance procedures on the controller, all safety regulations
described in Chapter 2 must be strictly adhered to. Failure to adhere to these
regulations may cause permanent, irreparable damage to the controller. It should
especially be remembered that the controller board and the daughter board are very
sensitive components that can be easily damaged.
Controller Maintenance Overview
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♦
When replacing any of the controller components, it is necessary to access the
controller board in controller canister. It is recommended that all power to the
controller canister is turned off when maintenance procedures are being carried out.
♦
♦
If the DIMM module, controller board or daughter board fail, the maintenance
operations must be completed as soon as possible.
If either the BBU module or the BBU charger board fail, it is not necessary to
perform maintenance operations immediately. Because all I/O access to the
controller will be shut off for the duration of the maintenance procedure, it is
recommended that you carefully select the time when maintenance operations will
be carried out.
5.2. Replacing a failed DIMM Module
5.2.1 When should a DIMM module be replaced?
There are two instances when a DIMM module should be replaced:
♦
Case 1: DIMM module fails
If a DIMM module fails it must be replaced immediately. The controller cannot
function without a DIMM module and is therefore rendered inoperable. In this
instance, DIMM module replacement becomes a priority and must be replaced as
soon as possible.
♦
Case 2: DIMM module with larger capacity required
If the capacity of the currently installed DIMM module is not sufficient, it can be
replaced with a larger capacity DIMM module. In this instance, it is best to replace
the DIMM module during the least busy time as the controller will have to be
powered down and removed.
5.2.2 DIMM Module Replacement Procedure
Step 1. Power off the controller. Prior to removing the controller module, it is
necessary to power off the controller.
Step 2. Access the controller module. The DIMM module is located on the controller
board. To replace the DIMM module, remove the chassis top cover and open
the chassis. The complete removal procedure is described in Chapter 2,
Section 2.6.2.
Step 3. Remove the optional daughter board. If an optional daughter board has been
installed, it must be removed. The DIMM module is located beneath the
daughter board. See Section 5.4.2 below.
5-2
Replacing a failed DIMM Module
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Step 4. Remove the optional BBU charger board. The BBU charger board obstructs
the DIMM module and must therefore be removed. See Section 5.3.3 below.
Step 5. Insert the new DIMM module. To install the replacement DIMM module,
align it with the DIMM slot. Next, gently push the new module into the DIMM
socket. The white clips on either side of the DIMM socket will automatically
close and lock the new DIMM module into place. (See Figure 5-1)
Figure 5-1: Remove the DIMM Module
Step 6. Insert the new DIMM module. Once the old DIMM module has been
removed the replacement DIMM module can be installed. To install the
replacement DIMM module align it with the DIMM slot. Next, gently push the
new DIMM module into the DIMM socket. The white clips on either side of
the DIMM socket will automatically close and lock the new DIMM module
into place. (See Figure 5-2)
Figure 5-2: Install a DIMM Module
Replacing a failed DIMM Module
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Step 7. Reinstall the optional BBU charger board. Once the new DIMM module is
installed, if an optional BBU charger board was previously removed it can
now be reinstalled onto the controller board. See Section 5.3.3 below.
Step 8. Reinstall the optional daughter board. Once the optional BBU charger board
has been reinstalled, if an optional daughter board was previously installed on
the controller board, it too can be reinstalled. See Section 5.4.2 below.
Step 9. Replace the chassis top cover. Once the DIMM module, optional BBU
charger board and optional daughter board have all been reinstalled, the
chassis top cover must be reinstalled. For detailed instructions on how to
reinstall the chassis top cover, please refer to Section 2.6.2.
5.3. Replacing a Failed Optional BBU Module
5.3.1 About BBU Maintenance
Maintaining the BBU requires that two items be maintained:
♦
♦
BBU battery pack: The BBU battery pack contains the cells that provide power to
the memory cache during a power outage. The battery pack is connected to the
battery charger board or the connector at the back of the controller board. It is
important that the BBU battery pack is replaced every two years.
BBU charger board: The BBU charger board is installed on the controller board.
The charger board keeps the battery pack charged so that the BBU can support the
cache memory during a power outage.
If either of these components fails, it will have to be replaced.
5.3.2 BBU Battery Pack Replacement
5.3.2.1 Case 1: BBU Battery Pack Connected to the Controller
Board Backplane Connector
If the BBU battery pack is attached to the connector on the rear of the controller board,
the cable attached to this connector must be removed and the connector on the
replacement battery pack connected. (See Figure 5-3)
5-4
Replacing a Failed Optional BBU Module
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Chapter 5: Controller Maintenance
Figure 5-3: Disconnect the BBU Connector from the Connector at the Back of the Controller
Board.
5.3.2.2 Case 2: BBU Battery Pack Connected to the Charger
Board Connector on the Controller Board
If the BBU battery pack is attached to the connector on the BBU charger board, please
follow these instructions:
Step 1. Access the controller module. The BBU charger board is located on the
controller board. To disconnect the BBU battery pack from the charger board,
remove the chassis top cover and open the chassis. The complete removal
procedure is described in Chapter 2, Section 2.6.2.
Step 2. Disconnect the BBU battery pack connector. Once the controller board has
been removed, disconnect the failed BBU pack from the charger board
connector. (See Figure 5-4)
Figure 5-4: Disconnect the BBU Connector from the Charger Board
Step 3. Connect the new BBU battery pack. Connect the replacement BBU battery pack
to the BBU charger board.
Replacing a Failed Optional BBU Module
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Step 4. Replace the chassis top cover. Once the new BBU battery pack has been
connected to the BBU charger board, the chassis top cover must be reinstalled.
For further instructions on how to reinstall the chassis top cover, please refer to
Section 2.6.2.
5.3.3 BBU Charger Board Replacement
To replace the BBU charger board, please follow these instructions:
Step 1. Access the controller module. The BBU charger board is located on the
controller board. To replace the BBU charger board, remove the chassis top
cover and open the chassis. The complete removal procedure is described in
Chapter 2, Section 2.6.2.
Step 2. Disconnect the BBU battery pack. If the BBU battery pack has been
connected to the battery charger board, it should be disconnected. See Section
5.3.2.2 above.
Step 3. Remove the BBU charger board. Locate the BBU charger board and gently
pull it up to remove.
Step 4. Install the new charger board on the controller board. Complete installation
instructions are described in Chapter 2, Section 2.8.
Step 5. Connect the BBU pack. Connect the BBU battery pack to the charger board
onboard connector. See Section 5.3.2.2 above.
Step 6. Replace the chassis top cover. Once the BBU charger board has been installed
and connected to the BBU battery pack, reinstall the chassis top cover. For
further instructions on how to reinstall the chassis top cover, please refer to
Section 2.6.2.
5.4. Daughter Board Maintenance
5.4.1 About Daughter Board Maintenance
The daughter board is an optional item installed on the controller board that is used to
expand the number of available SCSI-320 I/O channels. A daughter board can be
damaged by over heating and static electricity, among other things.
5.4.2 Replacing a Daughter Board
To replace a daughter board, please follow these steps:
Step 1. Access the controller module. The daughter board is located on the controller
board. To replace the daughter board, remove the chassis top cover and open
5-6
Daughter Board Maintenance
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Chapter 5: Controller Maintenance
the chassis. The complete removal procedure is described in Chapter 2,
Section 2.6.2.
Step 2. Remove the retention screws. The daughter board is secured to the controller
board with three retention screws that pass through spacers mounted on the
controller board. Remove these three retention screws. (See Figure 5-5)
Figure 5-5: Remove the Daughter Board Retention Screws
Step 3. Remove the daughter board. The daughter board is connected to the controller
board through two board-to-board connectors. To disconnect the failed
daughter board from the controller board, gently lift it up.
Step 4. Install the new daughter board. Correctly align the board-to-board
connectors on the daughter board with those on the controller. Place the
daughter board onto the controller board and push down gently, ensuring that
the board-to-board connectors are properly connected. Use the previously
removed retention screws to secure the daughter board to the controller board.
Step 5. Replace the chassis top cover. Once the new daughter board has been properly
installed, reinstall the chassis top cover. For further instructions on how to
reinstall the chassis top cover, please refer to Section 2.6.2.
Daughter Board Maintenance
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5-8
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Appendix A: SentinelRAID Features
Appendix A
SentinelRAID Features
A.1. Overview
The SR controller comes with many different features. Some of these features enhance
the performance of the controller or add configuration flexibility while other features
simplify the installation, maintenance procedures of the controller. This section
highlights some of the features of the SR controller.
A.2. Controller Features
A.2.1 SCSI-320 I/O Channels
All of the I/O channels on both the controller board and the daughter board are SCSI-320
compatible. These channels can be connected to SCSI-320 host computers and SCSI-320
drives with data transmission rates of up to 320MB/second.
A.2.2 Flexible Configuration
All of the SCSI-320 I/O channels can be configured as host or drive channels. Eight
logical drives can be created from physical drives and eight logical volumes can be
created from one or several logical drives. You may then divide storage capacity by
partitioning each of the logical units into eight portions for a total of 64 partitions.
Various RAID levels can be applied to different logical units with the support of
dedicated or global spare drives.
A.2.3 Expansion
Channel expansion: With the installation of an optional daughter board, the SR 170
controller can support up to eight SCSI-320 channels.
Capacity expansion: Logical drive capacity can be expanded either by adding a new
drive or copying and then replacing the original members with drives of larger capacity.
A.2.4 User-friendly Configuration Utilities
There are multiple choices of interfaces or management programs for configuring the
RAID system. Administrators may choose one or more from the LCD front panel,
firmware-embedded configuration utility, and the Java-based GUI RAIDWatch Manager
for local or remote management.
Overview
A-1
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A.2.5 Controller Architecture
The controller is developed from Infortrend's PowerPC-500133 ASIC architecture, a
third-generation, 64-bit controller design that efficiently eliminates internal bottlenecks.
®
The controller's high performance derives from a state-of-the–art PowerPC 750CXe
RISC microprocessor, which provides a 64-bit 133MHz path to SDRAM. The 500133
integrates SDRAM control, CPU peripheral, dual 64-bit PCI buses, and hardware XOR
functions. The ASIC provides 133MHz operating frequency for CPU and DRAM
interfaces, and 66MHz for PCI interfaces. Two 64-bit 66MHz PCI buses can operate
independently to maximize the performance.
A.3. Fault Tolerance
A.3.1 Global and Local Spares
Both global and local (dedicated) spares are supported. The controller(s) will
automatically disconnect from a failed drive and start to rebuild data on the spare drive.
The spare drive will then replace the failed drive.
A.3.2 Hot-swapping of Drives
A failed drive can be exchanged without turning off the system or interrupting its smooth
operation. Once the failed drive is replaced, the data will be rebuilt in the background.
Hot-swapping is supported through the automatic disconnection from a failed drive and
the detection of a reserve drive. All of these failure recovery procedures are completely
transparent to the host.
A.3.3 S.M.A.R.T. Support
S.M.A.R.T (Self Monitoring Analysis and Reporting Technology) is supported with
configurable reaction schemes. You may select different reaction schemes for immediate
prevention against S.M.A.R.T.-detected errors. Available options include: detect only,
clone and replace, and perpetual clone. A faulty drive can be cloned to an active spare
upon the discovery of errors.
A.3.4 Other Fault Tolerant Features
Other comprehensive failure management features on the SR controller include:
•
•
•
Automatic bad-block assignment
Background rebuilding
Verify-after-write support on normal writes, rebuild writes, and/or RAID
initialization writes
•
Regeneration of parity of logical drives in the background
Fault Tolerance
A-2
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Appendix A: SentinelRAID Features
A.4. Functional Features
A.4.1 RAID Levels Supported
The following RAID levels are supported: RAID 0, 1(0+1), 3, 5, 10, 30, 50, NRAID and
JBOD.
A.4.2 Controller Chassis
The 5.25-inch profile of the controller chassis allows it to be easily integrated into an
external subsystem enclosure or directly into a host systems drive bay.
Functional Features
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Functional Features
A-4
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Appendix B: Hardware Specifications
Appendix B
Hardware Specifications
B.1. Configuration
Specification
Feature
RAID Levels
0, 1(0+1), 3, 5, 10, 30, 50, JBOD, and non-RAID disk
spanning
Host O/S Compatibility
Host O/S independent
SCSI Channels
4 on base module
8 (with the expansion daughterboard)
Host Interface
Host Channels
Drive Interface
Drive Channels
SCSI-320
All channels can be configured as host or drive channels
SCSI-320
Up to 3; up to 7 with the expansion daughter board
Maximum Number of SCSI Up to 105 (on 7 drive channels)
Drives
Cache Memory Size
At least 128MB, supports up to 1GB; PC-133 SDRAM
DIMM socket x1 with ECC support
Write-through or write-back
Cache Mode
Logical Drives
Partitions
Up to 8
Up to 8 per logical drive or logical volume, 64 total
Up to 32 per SCSI ID, 128 per controller
Number of LUNs
Multiple SCSI IDs per Host Yes
Channel
Firmware on Flash Memory Yes; main RAIDWatch agents included
Drive Hot Swapping
Yes
Table B-1: Controller Configuration
Configuration
B-1
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B.2. Controller Architecture
Specification
Feature
PowerPC® 750CXe 600MHz microprocessor
CPU
SCSI Controllers
DIMM Slot
PC-133 Support
ASIC
LSI 53C1030T SCSI controller
One 168-pin DIMM module
Yes
Infortrend 64-bit chipset
Flash ROM
NVRAM
2MB
32KB
Hardware XOR
Channel Termination
Yes
On-board LVD active termination, configurable
via backplane DIP switch
I/O Channel Bandwidth
SCSI-320,: up to 320Mbytes/second
Real-time Clock
For event messages with time record
Table B-2: Controller Architecture
B.3. RAID Management
Specification
Feature
Performance Monitoring
Remote Control and
Monitoring
Yes
Yes
Event Broadcast/Alert
Yes (via Java-based RAIDWatch Manager and
Event Monitor)
Event Notification
Yes (via RAIDWatch’s sub-module NPC)
In-band over SCSI or Fibre, Ethernet, or RS-232C
Configuration data stored on disks for logical
drive assemblies to exist after controller
replacement
Hardware Connection
Configuration on Disk
Failure Indicator
Via alarm, LCD panel, RAIDWatch Manager, or
terminal emulation
Table B-3: RAID Management
B-2
Controller Architecture
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Appendix B: Hardware Specifications
B.4. Fault Tolerance
Specification
Feature
Drive S.M.A.R.T. Support
Yes (with user-configurable detect only, clone
and replace, and perpetual clone functions)
Battery Back-up Option
SAF-TE Support
Yes
Yes
Yes
Yes
S.E.S. Support
ISEMS (Infortrend Simple
Enclosure Management
Service) via I2C Interface
Automatic Drive Failure
Detection
Yes
Automatic Rebuild on Spare Yes
Drives
Regenerate Logical Drive
Parity
Yes
Bad Block Reassignment
Automatic Rebuild upon
Failed Drive Replacement
Yes
Yes
Manual Clone of Suspected Yes
Failed Drive
Concurrent Rebuild on
Multiple Drives in a RAID
(0+1) Logical Drive
Salvage the Second
Temporary Failed Drive in a
RAID 1, 3 or 5 Logical
Drive
Yes
Yes
Salvage the First Temporary Yes
Failed Drive in a RAID 0
Logical Drive
Variable Stripe Size
Optimization for sequential:128KB
Optimization for random: 32KB
Table B-4: Fault Tolerance
Fault Tolerance
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B.5. Software
Specification
Feature
In-band Text RAID
Manager
Yes (all major platforms)
RAIDWatch Manager
Yes (for any platform that supports Java 2.0 or
for Java Applet running via web browser)
Yes
LAN/WAN Support via
SNMP
Table B-5: Available Software
B.6. Technical Specifications
B.6.1 Physical Dimensions
Specification
Size
Controller Size in Frame
10.39 x 5.74 x 1.60 (L x W x H) inches
Main Board Height with
Daughterboard
1.30-inch
Table B-6: Controller Physical Dimensions
B.6.2 Environmental Specifications
Description
Specification
Operating Temperature
4 - 44°C
< 50°C
Operating Ambient Temperature
within Enclosure
Relative Humidity
Operating Altitude
10 - 95%, non-condensing
Sea level - 10,000 ft
> 500,000 hours
MTBF
Table B-7: Environmental Specifications
B-4
Software
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Appendix B: Hardware Specifications
B.6.3 Controller Specifications
Description
Specification
Cache memory
At least 128MB, up to 1GB, PC-133
SDRAM DIMM socket x1
Resides in 2MB Flash memory
32KB
Firmware
NVRAM
Devices per Channel
Supported Device Types
RAID Levels Supported
SCSI: up to 15 SCSI devices
Synchronous or asynchronous
0, 1(0+1), 3, 5, 10, 30, 50, JBOD and
non-RAID disk spanning
SCSI Connectors
SCSI Cables
68-pin high-density connectors (x 4) on
base module
Up to 12 meters with low-voltage
differential
Serial Port
20-pin box header for COM1 & COM2
10/100M
Ethernet Port
LCD Panel
Yes
LED and Push-button Interface
Board Connectors
Yes
160-pin male docking connectors (x 2)
on main board (I-PEX model number
T80043-160T); connects main board to
main board backplane, integrating
SCSI/Fibre channels, redundant
controller features, RS-232C COM-1
and COM-2, battery connector signal,
on-board alarm, external LCD module,
SAF-TE status inputs, Ethernet port, I2C
port and drive failure indication
interface
Table B-8: Controller Specifications
Technical Specifications
B-5
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B-6
Technical Specifications
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Appendix C: Hardware Troubleshooting
Appendix C
Hardware Troubleshooting
C.1. Problem
♦ LCD is off
1. Check the power connection on the controller board and LCD panel.
2. Check that a minimum of 128MB SDRAM DIMM is installed.
♦ 7-segment LED flashes "F"
1. The DIMM module is not installed yet.
2. The socket plug (loop-back circuits board) for the battery charger connector
(JP8) is not installed.
Problem
Solution
7-segment LED flashes "F"
1. DIMM module not installed yet.
2. Socket plug (loop-back circuits board) for battery
charger connector (JP8) not installed.
SCSI channel failure detected
upon start-up (SCSI cables
connected)
1. Check cable connection
2. Check ID numbers (must be unique for each device
on the same SCSI channel).
Message on LCD:
3. Make sure that SCSI channels are properly
terminated.
SCSI CHLs fail
CHL=x,x,x
4. Check the voltage output of the power supply.
5. Connect both power connectors
Initialization failure
1. Check ID numbers (must be unique for each device
on the same SCSI channel).
2. Make sure terminators are properly installed.
Cannot detect SCSI drive
1. Check drive power connection.
2. Check drive SCSI cable connection.
3. Check ID numbers (must be unique for each device
on the same SCSI channel).
Host can not detect the controller 1. Check host-side SCSI cable connection.
2. Check SCSI port to LUN assignment.
3. Check logical drive's mapping to LUN.
4. If there is no logical unit created, the controller must
be set as a peripheral device.
Problem
C-1
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Parity error detected
SDRAM DIMM should be replaced.
Logical drive failure detected
during boot-up
Check proper installation or connection of drives (use
the "View and Edit SCSI drives" function to help
locating the problem).
System is not stable after running 1. SCSI cable length must be within the range of
for a period of time.
specifications.
2. Make sure terminators are properly installed.
3. Power supply voltage must be within specifications.
4. Check the enclosure’s inner temperature.
When using "Scan New SCSI
Drive" and the desired ID is
empty, an empty drive entry
appears
Remove the empty drive entry
The RS-232C Terminal Interface 1. Check RS-232C cable connection.
does not work.
2. Check if the Baud Rate settings on both ends
identical.
3. Enable Terminal Emulation.
4. Set “Data Routing Direct to Port” in the “
Communication Parameters.”
When choosing “Configure
“Terminal Emulation” should be enabled after all
Modem Port”, the screen is full of modem configurations are completed.
“ Comm Buffer Overflow”.
The logical drive states
“INVALID”.
1. “Optimization for ... I/O,” the logical drive caching
parameter is different from the current setting.
2. Change “Optimization for ...I/O” to the opposite
setting and reset the controller.
In “View and Edit SCSI Drives” “80Mhz” is SCSI sync frequency, not transfer rate.
or “View and Edit SCSI
Channels”, the speed is only
“80Mhz” (SCSI-320 machines),
not “320Mhz”
C-2
Problem
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Appendix C: Hardware Troubleshooting
All settings are too complex to
remember.
1. After system installation is complete, write down all
the settings and related information using Chapter
11 of your “Generic Operation Manual” for future
reference. You may also save your configuration
data as a retrievable file (using TextRAID manager)
or save it to disks.
2. Save NVRAM to a file or to drives
Upon replacing the failed
1. Set the new controller as “redundant controller
enabled” before connecting to the active controller.
controller with a new one during
redundant controller connection, 2. Connect the new controller to the active controller
nothing appears on the LCD of
the new controller.
and choose “Deassert failed controller” on the active
controller.
3. Refer to “Chapter 12, Redundant Controller of your
Generic manual” for more detail.
Check to see if a DIMM module is installed or properly
installed. Reinstall a DIMM module will usually solve
the problem.
Error: Check
DRAM Installed?
This is a normal message if no logical drive has been
created or no logical drive has been mapped to a host
channel ID/LUN.
SR 170 v3.**
No Host LUN
This is a normal message when a logical drive has been
created and mapped to a host channel ID/LUN.
SR 170 v3.**
Ready
Please contact your system vendor for assistance with
any other error messages. You may also refer to
Appendix D of your "Generic Operation Manual" to
learn more about error messages.
[Other error
messages]
Problem
C-3
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C-4
Problem
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Appendix D: Spare Parts and Accessories
Appendix D
Spare Parts and Accessories
D.1. Spare Parts
The following table lists the available spare parts for the SR 1700/2700 external
controllers.
Spare Part
Part Number
Description
Daughter Board
IFT- 9284U4A
Expansion board with four
additional SCSI-320 interfaces
Table D-1: SR 170 Spare Parts
D.2. Accessories
The following table lists the available accessories for the SR 1700/2700 external
controllers.
Accessory
Part Number Description
Battery Charger
IFT-9070D
IFT-9010D
IFT-9519D
9011
Mounted on the controller board; charges
the BBU
Battery Module
Supports a memory cache for up to 72
hours during a power failure
Battery Expansion
Cable
Connects the controller to a battery
Null Modem
Bezel Key
Facilitates serial connection between the
controller and terminal computer
9531
Used for the removal of the front panel
Serial port cable
COM 1/2 Combo Cable 9512
Ethernet Cable 9537
Connects the controller to the internet for
online controller management
Table D-2: SR 170 Accessories
Spare Parts
D-1
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D-2
Accessories
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Appendix E: Connectors and Jumper Identification
Appendix E
Connectors and Jumper Identification
E.1. Controller Main Board Interfaces
Figure E-1: Jumper Locations
Controller Main Board Interfaces
E-1
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E.2. Controller Main Board Interface Descriptions
Label
Connector Name
Daughter board connectors
Battery charger board connector
LED connectors
JP1 and JP13
JP6 and JP11
JP2, JP3, and JP4
Not Mask Interrupted (NMI)
Reset
JP5
JP7
JP8
JP9
JP10
Loop-back test
GAL
LCD type selection
LCD connector
JP14
JP19
Restore firmware default
Front panel fan status detect
SCSI-320 connectors
I2C connector
JP22
CH0, CH1, CH2 and CH3
J3
Battery connector
J1
COM1 and COM2 connector
SCSI terminators
JP16 and JP17
JP20
RJ-45 Ethernet connector
JP23
E-2
Controller Main Board Interface Descriptions
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Appendix E: Connectors and Jumper Identification
E.3. LED Jumper Pin Outs
E.3.1 JP 2 LED
Pin
Description
Pin
Description
1
Partner Failed
2
GND
E.3.2 JP 3 LED
Pin
Description
Pin
Description
1
Ready
2
GND
E.3.3 JP 4 LED
Pin
Description
Pin
Description
1
Not Ready
2
GND
E.4. COM Port Pin Outs
E.4.1 JP 16 RS-232C Port
Pin
1
Description
DCD1
Pin
6
Description
DSR1
RST1
2
RXD1
7
3
TXD1
8
CTS1
4
DTR1
9
RT1
5
GND
10
N/C
LED Jumper Pin Outs
E-3
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E.4.2 JP 17 RS-232C Port
Pin
1
Description
DCD2
Pin
6
Description
DSR2
2
RXD2
7
RTS2
3
TXD2
8
CTS2
4
DTR2
9
RS232 RESET
N/C
5
GND
10
E.5. J3 I2C Port
E.5.1 I2C Port Pin Outs
Pin
1
Pin Name
I2CCLK
GND
2
3
VCC
4
I2CDATA
E.5.2 I2C Connector Pin Name Descriptions
Symbol
GND
Type
Description
Signal ground
I2C clock
G
O
O
P
I2CCLK
I2CDATA
VCC
I2C data
+5V voltage input
E-4
J3 I2C Port
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Appendix E: Connectors and Jumper Identification
E.6. J1 Battery Connector
Pin
Pin Name
1
VB (battery voltage +)
2
BAT-THM (battery temperature)
VBATTL (battery voltage -)
VBATTL (battery voltage -)
3
4
E.7. TTL Device Parameters
Symbol
Parameter
Rating
Unit
VIN
Input voltage
-0.5 to
+7.0
V
IIN
Input current
-30 to
+5
mA
V
VOUT
Voltage applied to output
in high output state
-0.5 to
+ VCC
IOUT
Current applied to output
in low output state
40
mA
Standard RS-232C cable,
customer provided
IFT-9016
RS-232
IFT-9011
Controller
COM Port
Standard PC
Serial COM Port
Swap pin 2-3;
4-6; 7-8
J1 Battery Connector
E-5
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E.8. IFT- 9011 Null Modem
Swap pin-2 and pin-3
Swap pin-4 and pin-6
Swap pin-7 and pin-8
E.9. IFT-9012 RS-232C Extension Cable
(Not included in kit)
Extend the cable length only, no wire swap
E-6
IFT- 9011 Null Modem
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INDEX
DIMM module, 2-3, 2-5, 5-1, 5-2
--A--
downtime, 5-1
drive channels, 1-1, 1-4, 2-2, 2-3, 4-1, 4-2,
accessory box, 1-7
4-7, A-1
audible alarm, 1-11, 3-1, 3-3
automatic bad block assignment, A-2
drives, A-1
dual host, 4-4
--B--
--E--
ECC support, 2-5
background rebuilding, A-2
base channels, 1-4
electrostatic discharge, 2-1
embedded terminators, 4-6
environmental considerations, 1-9
ESD, 2-2
battery charger board, 1-8, 2-6
battery connector, 1-2, 1-5
battery packs, 1-8, 5-4
BBU charger board, 4-7, 5-1, 5-2, 5-4, 5-6
BBU module, 1-2, 1-8, 2-3, 2-4, 2-6, 4-7, 5-
1, 5-2
expansion channels, 1-4
extension cable, 1-8
external hosts, 1-1
buffered data, 1-8
external interfaces, 1-1, 1-5
--C--
--F--
face plate, 4-7
cable specifications
cache memory, 1-8
failed drive, A-2
failover software, 4-4
fault tolerant, 1-1
features, A-1
capacitance, 4-1
capacity expansion, A-1
channel expansion, A-1
Check List, 4-7
firmware, 1-1, 1-10, 3-1
COM ports, 1-1
COM1, 3-1
--G--
component check, 2-1
configuration flexibility, A-1
configuration utility, A-1
connection and setup, 4-6
controller architecture, A-2
controller board components, 1-10
controller board, 1-1, 1-2, 1-3, 1-5, 2-4, 2-5,
5-1, 5-2, A-1
Generic Operation Manual, 3-3
global spare, A-2
GUI, 1-10
--H--
hard drives, 1-1, 2-1, 2-3, 4-7
high availability, 1-1
controller box, 1-2, 2-4
controller chassis, 1-2, 1-5, 2-4
controller cooling, 1-10
CPU, 1-1, 1-10
high performance, 1-1
host channels, 1-1, 1-4, 2-2, 2-3, 4-1, 4-4, 4-
7, A-1
host, 2-3, 4-1, 4-8, A-1
hot-swapping drives, A-2
--D--
--I--
data transmission rate, A-1
daughter board, 1-2, 1-9, 2-2, 2-3, 2-4, 2-9,
5-1, 5-2, 5-6, A-1
I/O channel connectors, 1-5
I/O channels, 1-1, 1-4, 1-9, 1-10, 2-2, 2-3, 2-
9, A-1
DC resistance, 4-1
delay skew, 4-1
I/O path configurations, 2-2
Index
I--1
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I/O port cabling, 2-2
I2C bus, 1-10
power down, 4-9
power failure, 1-8
I2C connector, 1-2, 1-5, 3-3
I2C, 3-1
power input, 4-6
Power Off, 4-9
impedance, 4-1
power on, 4-7, 4-8
installation procedure, 2-3
irreparable damage, 5-1
power source, 2-1
power supplies, 1-2, 1-9, 2-2
power supply connection, 1-8
PowerPCR 750CXe, A-2
propagation delay, 4-1
PSU connectors, 4-7
--J--
jumper setting, 4-6
jumpers, 1-4
--R--
RAID levels, A-1, A-3
--L--
LAN port, 1-2
RAIDWatch, 1-2, 1-10, 3-1, A-1
redundant host paths, 4-4
regeneration of parity, A-2
replaceable, 5-1
LCD panel, 1-2, 1-3, 1-10, 3-2, 5-1
LCD screen, 1-3, 2-4, 4-8
LED, 3-1
local Spare, A-2
RJ-45 Ethernet connector, 1-1
RS-232C connector, 1-5, 1-7
RS-232C serial cable, 1-7
RS-232C serial port, 1-2, 3-1
--M--
maintenance operations, 5-1
maintenance procedures, 5-1
maintenance, 5-1, A-1
memory capacity, 2-5
memory module, 2-1, 4-7
module locations, 2-2
monitoring, 5-1
--S--
S.M.A.R.T, A-2
safety regulations, 5-1
SCSI cable, 1-8, 2-1, 4-1
SCSI connector, 1-1
SCSI termination, 4-2
SCSI-320 connectors, 1-2
SCSI-320 host, A-1
SCSI-320 I/O channels, 1-1, 1-9, 5-6
SDRAM DIMM module, 1-4, 2-5
SDRAM DIMM socket, 1-4
SDRAM, 1-1
mounting holes, 1-2
--N--
Notification Process Center, 3-1
Null Modem, 4-6
--O--
onboard connectors, 1-4
self-monitoring features, 3-1
serial cable, 1-7
operational temperature range, 1-10
serial communication, 1-1
serial port, 3-1
--P--
single host, 4-2
Partner Failed!, 1-4
spares, A-2
PC hyper-terminal, 1-2, 1-7
power connection, 4-6
power cord connectors, 1-8, 1-9
power cord sockets, 1-2, 1-5
power cord, 1-8
startup, 4-8
static electricity, 2-2
static free, 2-1
status indicators, 1-10
status-indicating LEDs, 1-2
I--2
Index
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Index
storage devices, 1-2
unpacking, 2-1, 2-3
user serviceable, 5-1
surface temperature, 2-6
--T--
--V--
temperature threshold, 3-1
terminal emulation program, 1-10, 4-6
terminator, 4-5
ventilation, 2-1
verify-after-write, A-2
VHDCI SCSI connector, 1-1
top cover, 2-4
--W--
--U--
unique ID, 4-2
working integrity, 5-1
working surface, 2-2
Unpacking List, 2-1, 2-3
Index
I--3
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I--4
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