This document contains proprietary information of LSI Logic Corporation. The
information contained herein is not to be used by or disclosed to third parties
without the express written permission of an officer of LSI Logic Corporation.
LSI Logic products are not intended for use in life-support appliances, devices,
or systems. Use of any LSI Logic product in such applications without written
consent of the appropriate LSI Logic officer is prohibited.
Document DB15-000133-00, First Edition (December 1999). This document
describes Version 1.0 of the LSI Logic Corporation SYM8953U PCI to Ultra2
SCSI Host Adapter and will remain the official reference source for all
revisions/releases of this product until rescinded by an update.
LSI Logic Corporation reserves the right to make changes to any products herein
at any time without notice. LSI Logic does not assume any responsibility or
liability arising out of the application or use of any product described herein,
except as expressly agreed to in writing by LSI Logic; nor does the purchase or
use of a product from LSI Logic convey a license under any patent rights,
copyrights, trademark rights, or any other of the intellectual property rights of LSI
Logic or third parties.
Copyright © 1999 by LSI Logic Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
The LSI Logic logo design and Symbios are registered trademarks and SDMS,
SCRIPTS, and LVD Link are trademarks of LSI Logic Corporation. All other brand
and product names may be trademarks of their respective companies.
HH
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Contents
Chapter 1
Using the SYM8953U Host Adapter
1.1
1.2
General Description
Features
1-4
1.2.1
1.2.2
1.2.3
1.3
Interface Descriptions
1.3.1
1.3.3
1.3.4
1.3.5
The PCI Interface
Chapter 2
Installing the SYM8953U Host Adapter
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.6
2.2.7
Making Internal SCSI Bus Connections
2-10
2.3
Chapter 3
Configuring the SYM8953U Host Adapter
3.1 Overview of the SCSI BIOS Configuration Utility
3-1
3-2
3-3
3.1.1
3.1.2
Starting the Configuration Utility
Exiting the SCSI BIOS Configuration Utility
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3.2
3.2.1
3.2.2
3.2.3
3.2.5
3.2.6
3.2.7
Adapter Properties Menu
3-6
Appendix A
Technical Specifications
A.1
Physical Environment
A-3
A-7
A-10
A.1.1
A.1.2
A.1.3
A.1.4
A.1.5
A.2
Operational Environment
A.2.2
A.2.3
The SCSI Interface
On-Board LED
Appendix B
Index
Customer Feedback
Figures
2.1
2.2
2.3
2.4
2.5
Hardware Connections for the SYM8953U Host Adapter
2-5
SCSI Cables
2-9
Internal SCSI Ribbon Cable to Host Adapter Connection
Internal SCSI Ribbon Cable to Internal SCSI Device
Connection
2-10
2-11
2-12
2.6
Connecting Additional Internal SCSI Devices
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2.7
2.8
2.9
2.10 External SCSI Device Cable
3.1
3.2
3.3
3.4
3.5
3.6
3.7
A.1
Main Menu
Device Properties Menu (Right Half)
Boot Adapter List Menu
Global Properties Menu
Exit Menu
3-12
3-16
3-18
Tables
2.1
2.2
2.3
3.1
3.2
3.3
3.4
3.5
3.6
A.1
A.2
A.3
A.4
A.5
A.6
SCSI ID Record
PCI Connector J1 (Front)
A-5
PCI Connector J1 (Back)
A-6
Internal SCSI Connector J2
External SCSI Connector J3
LED Connector J4
A-8
A-9
A-10
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Preface
This book is the primary reference and user’s guide for the LSI Logic
Symbios® SYM8953U PCI to Ultra2 SCSI Host Adapter. It contains a
complete functional description for the SYM8953U as well as complete
physical and electrical specifications.
Audience
This document assumes that you have some familiarity with SCSI
protocol and related support devices and will benefit persons installing
and using the SYM8953U Host Adapter Board.
Organization
•
interfaces and characteristics of the SYM8953U PCI to Ultra2 SCSI
Host Adapter Board.
•
•
quick and detailed installation instructions.
the SCSI BIOS Configuration Utility to configure adapter and device
settings.
•
•
Appendix A, Technical Specifications, describes the physical and
operational environments of the SYM8953U Host Adapter Board.
Appendix B, Glossary of Terms and Abbreviations, provides
definitions of various terminology that is referenced throughout this
user’s guide.
Preface
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Related Publications
Symbios® PCI SCSI Device Management System SDMS™ 4.0 User’s
Guide, LSI Logic Corporation, Order Number S14007
Symbios® SYM53C895A PCI to Ultra2 SCSI Controller Technical
Manual, LSI Logic Corporation, Order Number S14028
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Chapter 1
Using the SYM8953U
Host Adapter
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computer systems and includes these topics:
•
•
•
Section 1.1, “General Description,” page 1-1
Section 1.2, “Features,” page 1-2
Section 1.3, “Interface Descriptions,” page 1-3
1.1 General Description
The LSI Logic Corporation Symbios® SYM8953U PCI to Ultra2 SCSI
Host Adapter board provides an Ultra2 SCSI interface to PCI computer
systems. It is referred to as the SYM8953U throughout this guide.
Installing this adapter in your PCI system allows connection of up to 15
SCSI devices.
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The SYM8953U board is a 16-bit, Low Voltage Differential (LVD)/Single-
Ended (SE) SCSI solution for your computer. This board also supports
legacy Fast SCSI and Ultra SCSI devices, and the newest LVD Ultra2
SCSI devices. It is also backwards compatible with existing wide SCSI
applications for the SYM8251S and SYM8751SP/E host adapters.
Symbios SCSI Device Management System (SDMS™) software
operates the board. SCSI software provided by other vendors that works
with the SYM53C895A chip can also be used. BIOS support for this
adapter is incorporated on the board in a Flash memory device. The
SYM8953U host adapter has a serial EEPROM device for storing the
user’s SCSI bus configuration.
The SYM53C895A chip also contains a SCSI SCRIPTS™ processor that
permits both DMA and SCSI commands to be fetched from host memory
or internal SCRIPTS RAM. Algorithms written in SCSI SCRIPTS control
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the actions of the SCSI and DMA cores. The SCRIPTS processor
executes complex SCSI bus sequences independently of the host CPU.
For more information on the SCSI SCRIPTS Instruction Set used to write
these algorithms, refer to the Symbios SYM53C895A PCI to Ultra2 SCSI
Controller Technical Manual.
This user’s guide, along with the Symbios PCI SCSI Device Management
System SDMS 4.0 User’s Guide, contains a complete library of product
information and installation instructions. With this information, the full
benefits of your SYM8953U PCI to Ultra2 SCSI Host Adapter are
available to you.
1.2 Features
This section provides a high-level overview of the PCI Interface, the SCSI
Interface, and Board Characteristics for the SYM8953U Host Adapter
board.
1.2.1 PCI Interface
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•
•
Supports 32-bit DMA bus master with 64-bit addressing
Bursts up to 133 Mbytes/s (@ 33 MHz) with zero wait-state bus
master data
•
•
•
•
•
Supports universal 3.3 V and 5 V PCI bus voltage
Supports 32-bit 33 MHz data bursts with variable burst lengths
Bursts 2 to 128 dwords across the PCI bus
Prefetches up to 8 dwords of SCRIPTS instructions
Supports PCI Write and Invalidate, Read Line, and Read Multiple
commands
1.2.2 SCSI Interface
•
•
Supports 16-bit LVD and SE signaling
Supports SCRIPTS
Includes 8 Kbytes RAM for SCRIPTS instruction storage
Automatically enables LVD or SE termination
–
•
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•
•
Contains external 68-pin High Density (HD) and internal 68-pin HD
latching connectors
Performs wide Ultra2 SCSI LVD synchronous transfers up to
80 Mbytes/s
•
•
Supports SCSI synchronous offset up to 31
Provides SCSI termination power (TERMPWR) source with
autoresetting circuit protection device
•
Supports SCSI Configured AutoMatically (SCAM) Level 1 Capability
(Set “OFF” by default)
•
•
•
Utilizes flash ROM for BIOS storage for up to 256 Kbytes
Supports variable block size and scatter/gather data transfers
Performs complex SCSI bus sequences without interrupts, including
restore data pointers
•
•
Has serial EEPROM for user configuration utility
Has SCSI bus activity LED connector and on-board LED
1.2.3 Board Characteristics
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•
PCI board dimensions,
152.4 x 88.90 mm (6.00 x 3.5 inches)
PCI Universal 32-bit card edge connector
HD 68-pin external connector
•
•
•
HD 68-pin internal connector
A mechanical drawing showing board dimensions and component layout
is located in Appendix A, “Technical Specifications”.
1.3 Interface Descriptions
This section provides a more detailed explanation about the PCI
Interface, the SCSI Interface, Ultra2 SCSI Technology, and LVD Link™=
Technology.
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1.3.1 The PCI Interface
PCI, a high-speed standard local bus, interfaces I/O components to the
processor and memory subsystems in equipment ranging from PCs to
servers. The PCI functionality for the SYM8953U is contained within the
Symbios SYM53C895A PCI to Ultra2 Controller with LVD Link Universal
generates signal timing and bus protocol in compliance with the PCI
Specification Revision 2.2.
The PCI interface operates as a 32-bit DMA bus master capable of
64-bit addressing. The connection is made through edge connector J1,
shown in Figure 2.1. The signal definitions and pin numbers conform to
the PCI Local Bus Specification Revision 2.2 standard. The SYM8953U
host adapter conforms to the PCI universal signaling environment for a
5 V or 3.3 V PCI bus.
1.3.2 The SCSI Interface
The SCSI functionality for the SYM8953U is contained within the
SYM53C895A. This chip is a PCI to Ultra2 SCSI Controller with LVD Link
Universal Transceivers. It connects directly to the SCSI bus and
generates signal timing and bus protocol in compliance with SCSI
standards.
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The SCSI interface on the SYM8953U operates as an 8-bit or 16-bit
interface. It supports 8-bit or 16-bit, synchronous and asynchronous, LVD
or SE, Fast, Ultra and Ultra2 SCSI protocols in various combinations. The
interface is made through connectors J2 and J3 (see Figure 2.1). Internal
connector J2 is a 68-pin HD right angle latching connector. External
connector J3 is a shielded 68-pin HD right angle connector exposed in
the back panel bracket. An on-board LED (labeled Activity) indicates
SCSI bus activity. LVD/SE dual mode, active termination is provided on
the SYM8953U board. Termination is automatically disabled when both
SCSI connectors are used. The SYM8953U supplies SCSI bus
TERMPWR through a blocking diode and a self-resetting 1.5 A short
circuit protection device. A 40 MHz oscillator is installed on the
SYM8953U to provide the clock frequency to the SYM53C895A that is
necessary to support Ultra2 SCSI transfers of up to 80 Mbytes/s.
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1.3.3 Ultra2 SCSI Technology
The SYM8953U fully supports Ultra2 SCSI. Ultra2 SCSI is an extension
of the SCSI Parallel Interface 2 and 3 (SPI-2 and SPI-3) family of
standards. SCSI2 expands the bandwidth of the SCSI bus, allowing
faster synchronous data transfers.
For the internal bus, special impedance SCSI ribbon cables are specified
for operation with Ultra and Ultra2 SCSI devices. You must consider the
total length of the bus cables and the number of devices on the SCSI
bus when setting up your system. Make sure that your SCSI cables are
rated for standard SCSI (Fast, Ultra, and Ultra2) environments.
Chapter 2, “Installing the SYM8953U Host Adapter” has a detailed
explanation of SCSI bus connections.
1.3.4 LVD Link Technology
To support greater device connectivity and a longer SCSI cable, the
SYM8953U features LVD Link technology, the LSI Logic implementation
of Universal LVD SCSI. LVD Link transceivers provide the inherent
reliability of differential SCSI, and a long-term migration path to faster
SCSI transfer rates.
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The LVD Link transceivers reduce the power needed to drive the SCSI
bus, so that the I/O drivers can be integrated directly into the chip. LVD
Link technology lowers the amplitude of noise reflections and allows
higher transmission frequencies.
The LVD Link transceivers operate in LVD and SE modes. They also
allow the chip to detect a High Voltage Differential (HVD) signal when the
chip is mistakenly connected to external HVD transceivers. When
connected, the SYM53C895A chip automatically detects signal type,
based on the voltage detected. It automatically switches to the SE or LVD
mode, as appropriate. All bus devices must be LVD or SE. If a HVD
device is detected, the board puts the SCSI bus in the high impedance
state and shuts down.
1.3.4.1 Benefits of LVD Link
LVD Link, supported by the SYM53C895A, is a signaling technology that
increases the reliability of SCSI data transfers over longer distances than
supported by SE SCSI. The low current requirements of LVD allow direct
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integration of I/O transceivers into the chip. LVD provides the reliability of
HVD SCSI without the added cost of external differential transceivers.
Ultra2 SCSI with LVD allows a longer SCSI cable and more devices on
the bus, using the same cables defined in the SCSI-3 parallel Interface
(SPI-2) standard for Ultra SCSI.
Important: To utilize Ultra2 SCSI performance, you must only have
LVD devices on the bus. Do not mix any SE devices with
LVD devices or the entire bus will drop to SE, limiting bus
1.3.5 On-Board LED
An on-board LED (CR1) indicates the status of the SCSI bus. This SCSI
Activity LED lights when the SCSI bus is transferring information. It is
located near J4 (see Figure A.1).
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Chapter 2
Installing the SYM8953U
Host Adapter
12 pc
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Adapter and includes these topics:
•
•
•
Section 2.1, “Quick Installation Procedure,” page 2-1
Section 2.2, “Detailed Installation Procedure,” page 2-3
Section 2.3, “Completing the Installation,” page 2-24
2.1 Quick Installation Procedure
This section provides an overview of the installation procedure. If you are
an experienced computer user with prior host adapter installation and
SCSI bus setup experience, this section may sufficiently describe the
procedure for you. If you prefer a more detailed guidance for installing
the SYM8953U host adapter, proceed to Section 2.2, “Detailed
Installation Procedure.”
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For safe and proper installation, check the user’s manual supplied with
your computer and perform the following steps.
Step 1. Ground yourself before removing this host adapter board.
Step 2. Remove the SYM8953U PCI to Ultra2 SCSI Host Adapter
board from the packing and check that it is not damaged.
An example of this host adapter board is shown in Figure 2.1.
A more detailed drawing is located in Figure A.1.
Step 3. Switch off and unplug the system.
Step 4. Remove the cabinet cover on your computer to access the PCI
slots.
Caution:
Ground yourself by touching a metal surface before
handling boards. Static charges on your body can damage
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do not touch board components or gold connector contacts.
The use of a static ground strap is recommended.
Step 5. Locate the slots for installing a PCI plug-in board.
The SYM8953U requires a PCI slot that allows bus master
operation. See Figure 2.2.
aligned with the PCI slot you intend to use.
Save the bracket screw for securing the installed board.
Step 7. Carefully insert the edge connector J1 of the host adapter into
the PCI slot. Make sure the edge connector is properly aligned
before pressing the board into place. See Figure 2.2.
The bracket around connector J3 (see Figure 2.1) should fit
where the blank bracket panel was removed.
Note:
You may notice that the components on a PCI host adapter
face the opposite way from non-PCI adapter boards you
have in your system. This orientation is correct. The board
is keyed and will only go in one way.
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Step 8. Secure the bracket with the bracket screw before making the
internal and external SCSI bus connections.
Step 9. If you are connecting any internal SCSI devices, plug a 68-pin
connector on the end of the internal SCSI ribbon cable into
connector J2 (see Figure 2.1).
Be sure you match pin 1 on both connectors.
Step 10. Connect the LED cable to J4 if desired.
This is designed to drive an off-board system LED and
indicates activity on the SCSI bus. The off-board LED will
operate at the same time as the on-board SCSI Activity LED.
Step 11. Replace the cabinet cover as described in the user’s manual for
your computer.
Step 12. Make all external SCSI bus connections.
Step 13. Refer to the Symbios PCI SCSI Device Management System
SDMS 4.0 User’s Guide (or the guide for the software you will
use) to load the driver software for your particular operating
system.
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Remember: The SCSI bus requires proper termination, and no duplicate
SCSI IDs.
This section provides step-by-step instructions for installing the
SYM8953U host adapter board, and connecting it to your SCSI
peripherals. If you are experienced in these tasks, you may prefer to use
Section 2.1, “Quick Installation Procedure.”
2.2.1 Before You Start
Before starting, look through the following task list to get an overall idea
of the steps you will be performing. If you are not confident you can
perform the tasks as described here, LSI Logic suggests getting
assistance.
•
•
•
•
•
•
•
•
Open your PC cabinet and select an appropriate open PCI slot
Insert the host adapter board
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Connect the internal and external SCSI peripherals
Terminate the SCSI bus
Set the peripheral SCSI IDs
Make any configuration changes
Close your PC cabinet
Install the software
The SCSI host adapter acts on your computer’s behalf as the host to
your suite of SCSI peripherals. Each chain of SCSI peripheral devices
and their host adapter work together, and are referred to as a SCSI bus.
Each SCSI host adapter that you install can act as host for up to 15
peripheral devices, not including the adapter itself.
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2.2.2 Inserting the Host Adapter
For safe and proper installation, you will need the user’s manual supplied
with your computer for reference. Perform the steps listed below to install
the SYM8953U.
Step 1. Ground yourself before removing this host adapter board.
Step 2. Remove the SYM8953U PCI to Ultra2 SCSI Host Adapter
board from the packing and check that it is not damaged.
An example of this host adapter board is shown in Figure 2.1.
A more detailed drawing is located in Figure A.1.
Step 3. Switch off the computer and unplug power cords for all
components in your system.
Step 4. Remove the cover from your computer per the instructions in
the user’s manual for your system to access the PCI slots.
Caution:
Ground yourself by touching a metal surface before
removing the cabinet top. Static charges on your body can
damage electronic components. Handle plug-in boards by
the edge; do not touch board components or gold
connector contacts. The use of a static ground strap is
recommended.
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Step 5. Locate the slots for PCI plug-in board installation.
Refer to the user’s manual for your computer to confirm the
location of the PCI slots.
Important: The SYM8953U board requires a PCI slot that allows bus
master operation.
Step 6. Remove the blank bracket panel on the back of the computer
aligned with the PCI slot you intend to use.
Save the bracket screw.
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Figure 2.1 Hardware Connections for the SYM8953U Host Adapter
LED
Internal
Connector
SCSI
J4
Interface
J2
External
SCSI
Interface
J3
SYM8953U
J1 to PCI Mainboard
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Step 7. Carefully insert edge connector J1 (see Figure 2.1) of the host
adapter into the PCI slot.
Make sure the edge connector is properly aligned before
pressing the board into place as shown in Figure 2.2. The
bracket around connector J3 should fit where you removed the
blank panel.
Note:
You may notice that the components on a PCI host adapter
face the opposite way from non-PCI adapter boards you
have in your system. This orientation is correct. The board
is keyed and will only go in one way.
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Figure 2.2 Inserting the Host Adapter
Bracket Screw
Bracket Surround
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Step 8. Secure the board with the bracket screw (see Figure 2.2) before
making the internal and external SCSI bus connections.
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2.2.3 Connecting the SCSI Peripherals
SCSI bus connections to the SYM8953U host adapter inside your
computer can be made with an unshielded 68 conductor Ultra SCSI PVC
ribbon cable (see Figure 2.3). The lead connected to pin 1 on the cable
is marked with a colored stripe. The connectors on this cable may also
be keyed to ensure proper pin-1 connection.
All external SCSI bus connections to the SYM8953U host adapter are
made with high quality shielded 68 conductor cables (see Figure 2.3).
The connectors on this cable are always keyed to ensure proper pin-1
connection.
Note:
All the cables shown in Figure 2.3 are included in the
Symbios Adapter Board Kit for the SYM8953U host
adapter.
Table 2.1
SCSI Bus Widths and Speeds
SCSI Bus Speed
SCSI Bus
Width, Bits
Maximum Data Rate,
Mbytes/s
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STA Terms
SCSI-1
8
8
5
Fast SCSI
10
20
20
40
40
80
Fast Wide SCSI
Ultra SCSI
16
8
Wide Ultra SCSI
Ultra2 SCSI
Wide Ultra2 SCSI
16
8
16
Note: Absence of the word “Wide” means an 8-bit bus width. It is
acceptable to use the word “Narrow” to avoid ambiguity.
You can connect up to eight SCSI, Fast SCSI, and Ultra SCSI devices
on a SE Ultra SCSI bus only if they are evenly spaced on a 1.5-meter
Ultra SCSI cable (0.19 m between devices).
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You can connect up to four devices if they are evenly spaced on a
3-meter Ultra SCSI cable (0.75 m between devices). Your SE SCSI bus
should not exceed 3 meters (total internal and external cable lengths),
even with fewer than four devices.
For LVD applications, you can connect up to 16 devices including the
host adapter if they are evenly spaced on a 12-meter Ultra SCSI cable
(0.19 m minimum between devices).
Table 2.2
SCSI Bus Lengths
Maximum Bus Length, Meters1
Maximum #
of Devices
SE
Differential
LVD
SCSI-1
6
3
25
25
12
12
12
12
–
8
8
Fast SCSI
Fast Wide SCSI
Ultra SCSI
3
25
16
8
1.52
32
25
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Ultra SCSI
–
4
Wide Ultra SCSI
Wide Ultra SCSI
Wide Ultra SCSI
Ultra2 SCSI
–
25
12
–
16
8
1.5
3
–
–
–
4
Note3
Note3
Note3
Note3
12
12
8
Wide Ultra2 SCSI
16
1. This parameter may be exceeded in point-to-point and engineered
applications.
2. Additional spacing rules apply.
3. SE and high power differential are not defined at Ultra2 speeds.
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Figure 2.3 SCSI Cables
Terminated SCSI Cable for Internal Connections
(for use with nonterminated internal devices)
68-pin HD
Terminated End
SCSI Cable for Internal Connections
68-pin HD
SCSI Cable for External Connections
68-pin HD
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2.2.4 Making Internal SCSI Bus Connections
This section provides step-by-step instructions about making internal
SCSI bus connections.
Step 1. Plug one end of the 68-pin internal SCSI ribbon cable into
connector J2 (see Figure 2.4).
Important: You must match pin 1 on this and all subsequent
connections.
Figure 2.4 Internal SCSI Ribbon Cable to Host Adapter
Connection
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Internal
SCSI Interface
J2
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Step 2. If you have only two internal devices to connect, plug the other
end of the internal SCSI ribbon cable into the SCSI connector
on your internal SCSI device. An example of this connection is
shown in Figure 2.5.
Note:
For nonterminated internal SCSI devices, a terminated
cable will be required. This connector must be on the end
of the SCSI cable.
Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection
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If you have more than one internal device to connect, use an internal
SCSI ribbon cable with the required number of connectors attached
internal device, proceed to page 2-14.
Step 3. Plug the cable into each additional device as needed.
An example of this type of chained connection is shown in
Figure 2.7. Make sure to match pin 1 on all connections.
Figure 2.6 Connecting Additional Internal SCSI Devices
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Most PC cabinets are designed with a front panel LED.
Step 4. Connect the LED cable to connector J4 on the host adapter, as
shown in Figure 2.8.
When properly connected, the front panel LED lights when
there is activity on the SCSI bus.
Connector J4 is not keyed. The orientation of the LED cable
should not matter as long as all four pins are connected. If the
LED does not light during SCSI bus activity from this host
adapter, you may have to rotate the LED cable connector 180°
on J4.
Figure 2.8 SCSI LED Connector
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LED
Connector
J4
Some LED cables have only two wires. In this case, place the
connector on one end or the other of J4. If the LED does not
light when there is SCSI activity, put the connector on the other
half of J4.
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2.2.5 Making External SCSI Bus Connections
SCSI bus connections. To connect external SCSI devices to the
SYM8953U host adapter:
Step 1. Plug the 68-pin HD connector on one end of a shielded external
SCSI cable (see Figure 2.3) into the host adapter connector J3
(see Figure 2.1).
This connector is in the bracket attached to the back panel of
your computer. Figure 2.9 shows how this connection is made.
Figure 2.9 External Cable to Host Adapter
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HD Connector
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Step 2. Plug the 68-pin connector on the other end of the shielded
external SCSI cable into the SCSI connector on your external
SCSI device. An example of this connection is shown in
Figure 2.10.
Figure 2.10 External SCSI Device Cable
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HD Connectors
If this is the only external SCSI device on your system, proceed to
Section 2.2.6, “SCSI Bus Termination,” page 2-18 for termination
instructions. If you have multiple SCSI devices, proceed to the next page.
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Step 3. Chain multiple devices together with shielded external SCSI
cables.
An example of these chained connections is shown in
Figure 2.11.
Figure 2.11 Multiple External SCSI Devices Chained Together
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HD Connectors
After you have connected all of your internal and external devices,
proceed to Section 2.2.6, “SCSI Bus Termination.”
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2.2.6 SCSI Bus Termination
The devices making up the SCSI bus are connected serially (chained
together) with SCSI cables. The first and last physical SCSI devices
connected on the ends of the SCSI bus must have their terminators
active. All other SCSI devices on the bus must have their terminators
removed or disabled. Remember that the SYM8953U host adapter is
also on the SCSI bus—its termination is automatically enabled when it is
connected to the end of the bus.
Important: To utilize Ultra2 SCSI performance, you must only have
LVD devices on the bus. Do not mix any SE devices with
LVD devices or the entire bus will drop to SE, limiting bus
performance to Ultra SCSI levels.
The peripheral device terminators are usually set with jumpers, resistor
modules, or with a switch on the peripheral. Refer to the peripheral
manufacturer’s instructions and to the user’s manual for your computer
for information on how to identify the terminator type/setting for each
device and how to set/change it.
Caution:
The autoenable/disable sensing feature on the SYM8953U
may enable termination erroneously if it is directly cabled to
another SCSI device or host adapter using the same
sensing method. The SYM8953U senses the presence of
SCSI devices by detecting the ground signal on conductor
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The SYM8953U automatically controls SCSI bus termination for three
different bus configurations, depending on how it is connected (see
Figure 2.1). The three bus configurations are:
•
•
•
Section 2.2.6.1, “Internal Bus Connections”
Section 2.2.6.2, “External Bus Connections”
Section 2.2.6.3, “Internal and External Bus Connections”
Termination on the SYM8953U host adapter for these three different bus
configurations is discussed below.
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2.2.6.1 Internal Bus Connections
If you have only internal SCSI device connections to your host adapter,
you must terminate the last internal device on the SCSI bus. You must
disable the terminators on all other devices. Termination on your host
adapter is automatically enabled in this case.
Figure 2.12 shows an example of how termination is determined for this
SCSI bus configuration.
Figure 2.12 Internal SCSI Device Termination
Last Device on
Bus - Terminators
Enabled
Does not end Bus -
Terminators Disabled
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Host Adapter
Automatically
Terminated
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2.2.6.2 External Bus Connections
If you have only external SCSI device connections to your host adapter,
you must terminate the last external device on the SCSI bus. You must
disable the terminators on all other devices. Termination on the host
adapter is automatically enabled in this case.
Figure 2.13 shows an example of how termination is determined for this
SCSI bus configuration.
Figure 2.13 External SCSI Device Termination
Last Device
on Bus -
Terminators
Enabled
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Does not
end Bus -
Terminators
Disabled
Host Adapter
Automatically
Terminated
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2.2.6.3 Internal and External Bus Connections
host adapter, you must terminate the last internal and last external
devices on the SCSI bus. You must also disable the termination on all
other devices. Termination on the host adapter is automatically disabled
in this case.
Figure 2.14 shows an example of how termination is determined for this
SCSI bus configuration.
Figure 2.14 Internal and External SCSI Device Termination
Last device on Bus -
Terminators Enabled
Does not end Bus -
Terminators Disabled
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Host Adapter Termination
Automatically Disabled
Do not end Bus -
Terminators Disabled
Last Device on Bus -
Terminators Enabled
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2.2.7 Setting SCSI IDs
You must set each SCSI device and the host adapter to a separate SCSI
ID 0 through 15. SCSI ID 7 is the preset host adapter setting, giving it
the highest priority on the SCSI bus. If you plan to boot your computer
from a SCSI hard disk drive on the SCSI bus, that drive should have the
lowest SCSI ID on the bus. Typically, SCSI ID 0 is used; however, for
system performance optimization, an ID other than 0 (zero) can be used.
Chapter 3, “Configuring the SYM8953U Host Adapter” explains how to
set the host adapter ID using the Symbios SCSI BIOS Configuration
Utility.
The peripheral device SCSI IDs are usually set with jumpers or with a
switch on the peripheral. Refer to the peripheral manufacturer’s
instructions and to the user’s manual for your computer to determine the
ID of each device and how to change it.
Note:
You must not have any duplication of SCSI IDs on a SCSI
bus.
Step 1. Determine the SCSI ID of each device on the SCSI bus. Note
any duplications.
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Step 2. Make any necessary changes to the SCSI IDs to eliminate
duplicates and record the IDs for future reference.
Table 2.3 is provided as a place to keep this record.
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2.3 Completing the Installation
Before replacing the cover on your computer, review this installation
procedure check list. This can save you effort later.
Verify Installation Procedures
Done
Host adapter connection in PCI bus slot secure
Internal SCSI bus connections secure (pin-1 continuity)
External SCSI bus connections secure
Proper SCSI bus termination established
Unique SCSI IDs set and recorded for each device
Step 1. Replace the cabinet cover on your computer.
Step 2. Plug in all power cords.
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Step 3. Switch power on to all devices and your computer.
Step 4. Wait for your computer to boot up.
Step 5. To change the configuration of the host adapter, see Chapter 3,
“Configuring the SYM8953U Host Adapter”.
Step 6. Load the software and drivers suitable to your application and
system.
Refer to the Symbios PCI SCSI Device Management System
SDMS 4.0 User’s Guide or the guide for the software you plan
to use.
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Chapter 3
Configuring the SYM8953U
Host Adapter
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This chapter describes configuring the SYM8953U Host Adapter and
includes these topics:
•
•
Section 3.1, “Overview of the SCSI BIOS Configuration Utility,”
page 3-1
Section 3.2, “The Symbios SCSI BIOS Configuration Utility Menus,”
page 3-3
3.1 Overview of the SCSI BIOS Configuration Utility
The SYM8953U Host Adaptor is loaded with Symbios SCSI BIOS and
Configuration Utility Version 4.15 (or greater). This chapter describes the
process you need to follow to change configuration settings on your
board.
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The SDMS SCSI BIOS provides support for the BIOS Boot Specification
(BBS), which allows you to choose which device to boot from by
selecting the priority.
To use this feature, the system BIOS must also be compatible with the
BBS. If your system supports the BBS, then you will use the system
BIOS setup menu to select the boot and drive order. In the system BIOS
setup, the Boot Connection Devices menu appears with a list of available
boot options. Use that menu to select the device and rearrange the order.
Then exit to continue the boot process.
In most cases you should not need to change the default configuration
of the host adapter. You may decide to alter these default values if there
is a conflict between device settings or if you need to optimize system
performance.
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There are four sets of configurations you can change. You make changes
on subordinate menus called from the Main Menu, which is opened when
you start the Configuration Menu. The subordinate menus are listed
below.
•
•
•
•
Adapter properties
Device properties
Adapter boot list
Global properties
All these properties are controlled by menus you access through the
configuration utility Main Menu. The Main Menu also gives an overview
of some properties of installed Symbios host adapter boards.
3.1.1 Starting the Configuration Utility
You can see the version number of your Symbios SCSI BIOS in a banner
displayed on your computer monitor during boot. If the utility is available,
the following message also appears on your monitor:
Press Ctrl-C to start Symbios Configuration Utility...
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This message remains on your screen for about five seconds, giving you
time to start the utility. If you decide to press “Ctrl-C,” the message
changes to:
Please wait, invoking Symbios Configuration Utility...
After a brief pause, your computer monitor displays the Main Menu of the
Symbios SCSI BIOS Configuration Utility.
These messages may appear during the boot process:
•
•
•
“Adapter removed from boot order, parameters will be
updated accordingly” appears when an adapter is removed from
the system or relocated behind a PCI bridge.
“Configuration data invalid, saving default
configuration!” appears if none of the information in the NVRAM
is valid.
“Found SCSI Controller not in following Boot Order List,
to Add: Press Ctrl-C to start Symbios Configuration
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Utility...” appears when less than four adapters are in the boot
order and more adapters exist than are shown.
NonVolatile Random Access Memory (NVRAM) is available on the
SYM8953U Host Adapter. Changes can be made and stored using this
menu driven utility.
Important: This utility is a powerful tool. If, while using it, you somehow
disable all of your controllers you can recover. Pressing
Ctrl-E after memory initialization during a reboot allows you
to re-enable and reconfigure.
Note:
Not all devices detected by the Configuration Utility can be
controlled by the BIOS. Devices such as tape drives and
scanners require that a device driver specific to that
peripheral be loaded. This device driver is provided by the
device manufacturer.
3.1.2 Exiting the SCSI BIOS Configuration Utility
Since most changes only take effect after the system reboots, you must
exit properly from the Configuration Utility. The proper exit technique is
described in Section 3.2.7, “Exit Menu,” page 3-20. It also describes
exiting the subordinate menus.
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3.2 The Symbios SCSI BIOS Configuration Utility Menus
This chapter describes the menu system of the Symbios SCSI BIOS
Configuration Menu System.
3.2.1 Using the Menus
You make your configuration changes in the main area of the menu. As
in the example menus, it is lighter in color than the header or footer
areas. The commands you use to make changes are shown in the footer
area and described in Table 3.1. Settings with black text can be changed,
settings with white text cannot. This is true regardless of whether the
Color or Mono setting is chosen in the Global Properties Menu
(Figure 3.6), described in detail later.
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Table 3.1
Configuration Commands
Command
Description
F1 = Help
Provides context sensitive help for the cursor
resident field.
Arrow Keys = Select Item Move the cursor up, down, left, or right.
+/– = Change [Item]
Changes items with values in [ ] brackets. Only the
numeric keypad ‘+’ and ‘–’ are enabled. When
pressed, they toggle modifiable field to its next
relative value. ‘+’ toggles the value up and ‘–’
toggles the value down.
Esc = Abort/Exit
Aborts the current context operation and/or exits
the current screen. This option calls an Exit menu,
described further in Section 3.2.7.
Home/End = Select Item Moves the cursor to the start/end of a scrollable
field.
Enter = Execute <Item> Executes options with values in < > brackets. Press
Enter to execute the field’s associated function.
F2 = Menu
Sets cursor context to the Optional Menu area.
Select a menu item and press Enter. This option is
only available from the Main and Adapter
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3.2.2 Main Menu
When you start the Symbios SCSI BIOS Configuration Utility, the Main
Menu, shown in Figure 3.1, appears. This menu displays a list of installed
Symbios PCI to SCSI host adapters, information about each of them, and
a series of other menu options. This list displays up to four boards.
At the opening menu, the cursor is on one of the listed adapters. If you
need to change the configuration of an adapter, move to the board you
want to change with the arrow keys and press Enter. This calls the menu
described in detail in Section 3.2.3, “Adapter Properties Menu.” From this
menu you can view and/or change the current settings for that adapter
and the SCSI devices attached to it. You can select an adapter only if
Current Status is “On.” Changes are possible since NVRAM is present
on this host adapter.
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Figure 3.1 is an example of the Configuration Utilities Main Menu. Table
3.2 lists the Main Menu fields and their descriptions.
Figure 3.1 Main Menu
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
<Boot Adapter List>
<Global Properties>
SYM53C8XX Host Bus Adapters
Adapter
PCI Dev/ Port
Bus Func Number
IRQ
NVM Boot
LSI Logic
Order Control
<SYM53C895A
<SYM53C896
<SYM53C896
0
0
0
98> FC00
88> F800
58> E400
9
Yes
Yes
Yes
2
3
1
Enabled
Disabled
Enabled
10
11
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F1 = Help
↑↓→← = Select Item -/+ = [Change Item]
Esc = Abort/Exit Home/End = Scroll Enter = Execute <Item>
F2 = Menu
Table 3.2
Fields
Main Menu Fields and Descriptions
Descriptions
Adapter
PCI Bus
Indicates the specific SYM53C8XX Host Adapter.
Indicates the PCI Bus number (range 0x00–0xFF,
0–255 decimal) assigned by the system BIOS to an
adapter.
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Table 3.2
Fields
Main Menu Fields and Descriptions (Cont.)
Descriptions
Dev/Func
Indicates the PCI Device/Function assigned by the
system BIOS to an adapter.
The 8-bit value is mapped as follows:
Bit # 7 6 5 4 3 2 1 0
Bits [7:3]: Device (range 0x00–0x1F, 0–31 decimal)
Bits [2:0]: Function (range 0–7)
Port Number
IRQ
Indicates which I/O port communicates with an adapter,
as assigned by the system BIOS.
Indicates the Interrupt Request Line used by an adapter,
as assigned by the system BIOS.
NVM
Indicates whether an adapter has NVM (NonVolatile
Memory) associated with it. An adapter's configuration is
stored in its associated NVM. NVM can refer to NVRAM
that is resident on a host adapter or to system
NonVolatile Storage (NVS).
Boot Order
LSI Logic
Indicates the relative boot order (0 to 3) of an adapter.
The Symbios SCSI BIOS traverses up to four adapters
in the specified order in search of bootable media. To
modify this field, access the Boot Adapter List Menu.
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Indicates whether an adapter is eligible for LSI Logic
Symbios software control or is reserved for control by
non-Symbios software.
3.2.3 Adapter Properties Menu
The Adapter Properties menu allows you to view and modify adapter
settings and as well as the SCSI devices connected to it. It also provides
access to an adapter's device settings. To display this menu, select a
device in the Adapter field on the Main Menu and press Enter. After
pressing Enter, the following message flashes before the menu appears:
“Initializing the adapters, reading for non-volatile
settings, and scanning for devices.....” After a few seconds the
menu appears. Figure 3.2 provides an example of the Adapter Properties
menu.
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Figure 3.2 Adapter Properties Menu
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
Adapter Properties SYM53C895A
<Device Properties>
0
A0
SCSI Parity
Host SCSI ID
[Yes]
[7]
SCSI Bus Scan Order [Low to High (0.Max)]
Removable Media
Support
[None]
CHS Mapping
[SCSI Plug and Play Mapping]
Spinup Delay (Secs) [2]
Secondary Cluster
Server
[No]
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Termination Control [Auto]
<Restore Defaults>
F1 = Help
Esc = Abort/Exit
↑↓→← = Select Item
-/+ = [Change Item]
Home/End = Scroll
Enter = Execute <Item>
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Table 3.3 lists the fields you can access and their descriptions.
Note:
If the field displays in black text it is available for changes.
If it displays in white text, it is not available.
Table 3.3
Field
Adapter Properties Fields and Descriptions
Field Type
[Value]
Descriptions
Device Properties
SCSI Parity
Executable
Select this option and press Enter to view and modify
device properties.
Configuration
[Yes/No]
Indicates whether SCSI parity is enabled for an
adapter. When disabled, it is also necessary to
disable disconnects for all devices, as parity checking
for the reselection phase is not disabled. If a
non-parity generating device disconnects, its
operation will never complete because the reselection
fails due to parity error.
Host SCSI ID
Configuration
[0 to 7 / 0 to 15]
Indicates the SCSI identifier of an adapter. It is
recommended that this field be set to the highest
priority SCSI identifier, which is 7.
SCSI Bus Scan Order Configuration
Indicates the order in which to scan SCSI identifiers
on an adapter. Changing this item will affect drive
letter assignment(s) if more than one device is
attached to an adapter.
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[Low to High (0 to
Max) / High to Low
(Max to 0)]
Removable Media
Support
Configuration
Specifies the removable media support option for an
adapter. Removable media support only applies to
devices that report themselves as a hard drive. It
does not apply to CD-ROM devices or Magnetic
Optical devices.
[None / Boot Drive
Only / With Media
Installed]
None indicates no removable media support whether
the drive is selected as first (BBS), or is first in the
scan order (non-BBS).
Boot Drive Only provides removable media support
for a removable hard drive if it is first in the scan
order.
With Media Installed provides removable media
support regardless of the drive number assignment.
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Table 3.3
Field
Adapter Properties Fields and Descriptions (Cont.)
Field Type
[Value]
Descriptions
CHS Mapping
Configuration
Defines how the Cylinder Head Sector (CHS) values
[SCSI Plug and Play are mapped onto a disk without pre-existing partition
Mapping / Alternate information.
CHS Mapping]
SCSI Plug and Play Mapping automatically
determines the most efficient and compatible
mapping.
Alternate CHS Mapping utilizes an alternate, possibly
less efficient mapping that may be required if a device
is moved between adapters from different vendors.
Caution: Neither of these options has any effect after
a disk has been partitioned using the FDISK
command. The FDISK utility is a tool that the user can
use to delete partition entries, one or all of them. If all
partition entries are deleted, it is necessary to reboot
to clear memory or the old partitioning data will be
reused, thus nullifying the previous operation. Use
care to ensure that the correct disk is the target of an
FDISK command.
Spinup Delay
(Seconds)
Configuration
[1 to 15]
Indicates the delay in seconds between spinups of
devices attached to an adapter. Staggered spinups
balance the total electrical current load on the system
during boot. The default value is 2 seconds.
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Secondary Cluster
Server
Configuration
[Yes / No]
Indicates whether an adapter has one or more
devices attached that are shared with one or more
other adapters and therefore, the Symbios SCSI
BIOS should avoid SCSI bus resets as much as
possible.
This option allows the user to enable an adapter to
join a cluster of adapters without doing any SCSI bus
resets. This is a requirement for Microsoft Cluster
Server. The default value is No with an alternate
option of Yes.
Termination Control
<Restore Defaults>
Configuration
[Auto / Off]
If available, the field indicates whether an adapter has
automatic termination control.
Auto means that the adapter automatically
determines whether it should enable or disable its
termination. Auto is the default state unless
termination is done manually, in which case, the
configuration is Off.
Executable
Press Enter to obtain default settings.
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3.2.4 Device Properties Menu
The Device Properties Menu allows you to view and update individual
device settings for an adapter. Changing a setting for the host device (for
example, SCSI ID 7) changes the setting for all devices. The number of
fields displayed requires the menu to scroll left/right in order to display
the information. When accessing this menu online, use the Home/End
keys to scroll to columns currently not displayed. The scroll indicator on
the bottom of the menu shows where the cursor is relative to the first and
last columns. The example for the Device Properties Menu is split
(Figure 3.3 and Figure 3.4) due to the width of its multiple fields/columns.
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Figure 3.3 Device Properties Menu (Left Half)
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
Device Properties SYM53C895A
0
A0
SCSI
ID
Device Identifier
Sync
Rate
Data
Width ID
Scan
Scan
LUNs>0
Disconnect
0
Quantum Viking 4.5 [20]
Quantum Viking 4.5 [20]
Quantum Viking 4.5 [20]
Quantum Viking 4.5 [20]
Quantum Viking 4.5 [20]
Quantum Viking 4.5 [20]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[16]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[Yes] [Yes]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
1
2
3
4
5
6
-
[20]
[20]
[20]
[20]
[20]
[20]
[20]
[20]
[20]
[20]
<<
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7
SYM53C895A
8
-
-
-
-
-
-
-
-
9
10
11
12
13
14
15
F1 = Help
↑↓→← = Select Item
-/+ = [Change Item]
Esc = Abort/Exit
Home/End = Scroll
Enter = Execute <Item>
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Figure 3.4 Device Properties Menu (Right Half)
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
Device Properties SYM53C895A
0
A0
SCSI Device Identifier
ID
SCSI
Timeout Tags
Queue Boot
Format
Verify
Restore
Defaults
Choice
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
[No]
0
Quantum Viking 4.5 < 10>
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[On]
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
[Format] [Verify] <Defaults>
>>
1
Quantum Viking 4.5 < 10>
Quantum Viking 4.5 < 10>
Quantum Viking 4.5 < 10>
Quantum Viking 4.5 < 10>
Quantum Viking 4.5 < 10>
2
3
4
5
6
-
< 10>
< 10>
< 10>
< 10>
< 10>
< 10>
< 10>
< 10>
< 10>
< 10>
7
SYM53C895A
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8
-
-
-
-
-
-
-
-
9
10
11
12
13
14
15
F1 = Help
↑↓→← = Select Item
-/+ = [Change Item]
Esc = Abort/Exit
Home/End = Scroll
Enter = Execute <Item>
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Table 3.4 lists the fields and their descriptions.
Table 3.4
Field
Device Properties Fields and Descriptions
Field Type
[Value]
Description
SCSI ID
Information
Information
Device’s SCSI Identifier.
Device Identifier
Indicates the ASCII device identifier string, as extracted
from the device’s inquiry data.
Sync Rate
Configuration
Indicates the maximum synchronous data transfer rate in
[0 / 5 / 10 / 20 / 40] mega transfers per second.
Mega Xfers Data Width Data Width Synch
per second = 8 bits = 16 bits Period (ns)
0 = Asynch 0 = Asynch 0 = Asynch 0 = Asynch
5
5
10
20
40
80
200
100
50
10
20
40
10
20
40
25
Data Width
Scan ID
Configuration
[8 / 16]
Maximum data width in bits.
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Configuration
[Yes / No]
Indicates whether to scan for this SCSI identifier at boot
time. Utilizing this setting allows you to ignore a device.
This decreases boot time by disabling inquiry of unused
SCSI identifiers.
Set this option to No if there is a device that you do not
want to be available to the system. Also, on a bus with
only a few devices attached, the user can speed up boot
time by changing this setting to No for all unused SCSI
IDs.
Scan LUNs > 0
Configuration
[Yes / No]
Indicates whether to scan for LUNs greater than zero for
a device. LUN 0 is always queried. This option should be
used if a multi-LUN device responds to unoccupied
LUNs or if it is desired to reduce the visibility of a
multi-LUN device to LUN 0 only.
Set this option to No if you have problems with a device
that responds to all LUNs whether they are occupied or
not. Also, if a SCSI device with multiple LUNs exists on
your system but you do not want all of those LUNs to be
available to the system, then set this option to No. This
will limit the scan to LUN 0.
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Table 3.4
Field
Device Properties Fields and Descriptions (Cont.)
Field Type
[Value]
Description
Disconnect
Configuration
[On / Off]
Indicates whether to allow a device to disconnect during
SCSI operations. Some (usually newer) devices run
faster with disconnect enabled, while some (usually
older) devices run faster with disconnect disabled.
SCSI Time-out
Executable
[0–9999]
Indicates the maximum allowable time for completion of
a SCSI operation in seconds.
Since time-outs provide a safeguard that allows the
system to recover should an operation fail, it is
recommended that a value greater than zero be used. A
value of zero allows unlimited time for an operation to
complete and could result in the system hanging (waiting
forever) should an operation fail.
Note: This field is executable and must be selected with
the Enter key. You also input the new value with the
number keys from the keyboard, not the number pad.
Queue Tags
Boot Choice
Configuration
[On / Off]
This field indicates whether to allow the use of queue
tags for a device. Currently the BIOS does not use
queue tags. This item specifies queue tag control to
higher level device drivers.
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Configuration
[Yes / No]
Indicates whether this device can be selected as the
boot device. This option is only applicable to devices
attached to adapter number zero in the boot list on
non-BBS systems. It provides primitive BBS flexibility to
non-BBS systems.
Format
Executable
Allows low-level formatting on a disk drive, if enabled.
Low-level formatting will completely and irreversibly
erase all data on the drive. To low level format a device,
select the device from the menu and use the arrow keys
to move the cursor to the Format column. Press Enter.
Note: Formatting will default the drive to a 512-byte
sector size even if the drive had previously been
formatted to another sector size.
Verify
Executable
Allows verification of all sectors on a device and
reassigns defective Logical Block Addresses, if enabled.
To verify all sectors, select the device from the menu and
use the arrow keys to move the cursor to the Verify
column. Press Enter.
<Restore Defaults> Executable
Press Enter to obtain default settings.
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3.2.5 Boot Adapter List Menu
The Boot Adapter List Menu specifies the order in which adapters boot
when more than one Symbios adapter is in a system. Up to four of the
total adapters in a system can be selected as bootable. This menu may
also list additional adapters in your system that are not bootable. As
many as 256 adapters can be listed. To control a Boot Volume, only one
of the four “active” controllers can be used.
To select this menu:
1. Press F2 while on the Main Menu to move the cursor to the Optional
Menu area.
2. Move the cursor to Boot Adapter List with the arrow keys.
3. Press Enter.
Adapters can be added or deleted using this menu. Use the arrow keys
to move the cursor to the lower list, the adapter select list, to add or
remove an adapter. To add an adapter to the boot list, press the Insert
key while on the Boot Adapter List. Use the arrow keys to select the
desired adapter and press Enter to add it to the end of the Boot Adapter
List. To change the configuration of the adapter, use the arrow keys to
move to the configuration you want to alter.
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To remove an adapter from the boot list, press the Delete key while on
the desired adapter in the Boot Adapter List.
Note:
If a new device is added after this utility loads, it can only
be seen in the adapter configuration section of this utility
after a reboot. You must exit the utility and restart it for the
new device to be seen by the Configuration Utility.
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Figure 3.5 provides an example of the Boot Adapter List Menu.
Figure 3.5 Boot Adapter List Menu
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
Boot Adapter List
Insert = Add an adapter
Delete = Remove an adapter
Adapter
PCI
Bus
Dev/
Func
Boot
Order
Current
Status
Next
Boot
<SYM53C895A
<SYM53C896
<SYM53C896
0
0
0
98>
88>
58>
[2]
[1]
[0]
Off
On
[On]
[Off]
[On
On
Hit Insert to select an adapter from this list.
<SYM53C895A
<SYM53C896
<SYM53C896
0
0
0
98>
88>
58>
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F1 = Help
↑↓→← = Select Item
-/+ =[Change Item]
Esc = Abort/Exit
Home/End = Scroll
Enter=Execute <Item>
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Table 3.5 lists the fields on this menu and their descriptions.
Table 3.5
Field
Boot Adapter List Fields and Descriptions
Field Type
[Value]
Description
Adapter
PCI Bus
Information
Information
Indicates the specific SYM53C8XX Host Adapter.
Indicates the PCI Bus number (range 0x00–0xFF,
0–255 decimal) assigned by the system BIOS to an
adapter.
Dev/Func
Information
Indicates the PCI Device/Function assigned by the
system BIOS to an adapter.
An 8-bit value is mapped as follows:
Bit # 7 6 5 4 3 2 1 0
Bits [7:3]: Device (range 0x00–0x1F, 0–31 decimal)
Bits [2:0]: Function (range 0–7)
Boot Order
Configuration
[0 to 3]
Indicates the relative boot order of the listed adapter.
The Symbios SCSI BIOS traverses up to four adapters,
in the specified order, searching for bootable media.
Current Status
Information
Indicates whether an adapter in the boot list was
enabled during the most recent boot. Disabled adapters
and their attached devices are ignored by the Symbios
SCSI BIOS, although they are still visible to the
configuration utility.
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Next Boot
Configuration
[On / Off]
Indicates whether to enable an adapter upon the next
boot. The Symbios SCSI BIOS ignores disabled
adapters and their attached devices although they are
still visible to the configuration utility.
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3.2.6 Global Properties Menu
The Global Properties Menu allows you to view display boot information
and to set display and video modes. Figure 3.6 provides an example of
the Global Properties Menu.
Figure 3.6 Global Properties Menu
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
Global Properties
Pause If Boot Alert Displayed [Yes]
Boot Information Display Mode [Verbose]
Video Mode
[Color]
<Restore Defaults>
↑↓→← = Select Item
Home/End = Scroll
F1 = Help
-/+ =[Change Item]
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Esc = Abort/Exit
Enter=Execute <Item>
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Table 3.6 lists the fields on this menu and their descriptions.
Table 3.6
Field
Global Properties Fields and Descriptions
Field Type
[Value]
Description
Pause When Boot
Alert Displayed
Configuration
[Yes / No]
Specifies a pause during the boot for user
acknowledgement. The pause occurs after displaying an
alert message.
To continue after displaying a message, specify No.
To wait for any key after displaying a message, specify
Ye s.
Boot Information
Display Mode
Configuration
[Terse / Verbose]
Specifies how much BIOS information displays during
boot.
To display minimum information, specify Terse mode.
To display detailed information, specify Verbose mode.
Video Mode
Configuration
[Color /
Monochrome]
Specifies the default video mode for the SCSI BIOS
Configuration Utility. The monochrome setting enhances
readability on a monochrome monitor.
<Restore Defaults> Executable
Press Enter to obtain default settings.
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3.2.7 Exit Menu
The Exit menu for the Configuration Utilities is used for all five of the
menus listed above. However, the available functionality is different for
the Main Menu and the four subordinate menus. Figure 3.7 provides and
example of the Exit menu.
Figure 3.7 Exit Menu
Symbios PCI SCSI Configuration Utility Version PCI 4.15.00
Boot property changes have been made
Cancel exit
Exit the Configuration Utility
Save changes and then exit this menu
Discard changes and exit this menu
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If you are exiting Adapter Properties, Device Properties, Boot Adapter
List, or Global Properties, the Exit menu gives you the following options:
Cancel exit
This option returns you to the previous menu.
Save changes and This option implements any changes you made on the
exit this menu
previous menu and returns you to the main menu.
Discard changes
and exit this menu
This option restores the default settings and returns you to
the main menu.
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If you are exiting the Main Menu, the exit menu gives you the following
options:
Cancel exit
This returns you to the Main Menu.
Exit the
Configuration
Utility
This option exits the configuration and returns you to the
DOS prompt.
Important: You must reboot in order for the changes you have made
to take effect.
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Appendix A
Technical
Specifications
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This section discusses the physical environment associated with the
SYM8953U Host Adapter. It includes a mechanical drawing of this board,
which is shown in Figure A.1. It also includes these topics:
•
•
Section A.1, “Physical Environment,” page A-1
Section A.2, “Operational Environment,” page A-3
A.1 Physical Environment
This section discusses the physical, electrical, thermal, and safety
characteristics of the SYM8953U Host Adapter board. Additionally, this
board is compliant with electromagnetic standards set by the FCC.
A.1.1 Physical Characteristics
The dimensions of the SYM8953U Host Adapter board are 6.00 x 3.50
inches. PCI connection is made through edge connector J1.
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Internal SCSI connection is made through the 68-pin HD connector J2.
External SCSI connection is made through the 68-pin HD connector J3.
The J3 connector extends external to the cabinet through a bracket
attached to the board and the face of the connector. The bracket is a
standard ISA type with a cutout to accommodate connector J3.
The J4 connector is for connecting to the computer’s drive activity LED.
It is a 4 pin one row right angle header wired in parallel with the on-board
SCSI Activity LED.
The component height on the top and bottom of the board conforms to
the PCI Specification Revision 2.2.
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Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter
A-1
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Figure A.1 SYM8953U Mechanical Drawing
152.4 mm (6.0 inches)
Activity
F1
U1
U3
CT2
CT3
J2
SCSI LVD/SE
U2
5V_A
GND_A
SIG2_A
SIG1_A
ICT
6.533’’
SYM8953U
U13
+3.3 V
U5
CT6
L1
CT5
CT7
L2
U8
U6
U11
U10
U9
CT8
5V_B
GND_B
SIG2_B
SIG1_B
J1T
CT10
C
01
62
1998
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Note:
•
J1: PCI 32-bit, universal board connector.
J2: 68-pin HD connector.
J3: 68-pin HD connector.
•
•
•
J4: 4 pin low density connector.
A.1.2 Electrical Characteristics
The SYM8953U maximum power requirement, including SCSI
TERMPWR (termination power), under normal operation is as follows:
Table A.1
Maximum Power Requirements
± 5% 1.5 A Over the operating range 0 °C to 55 °C
+ 5 V DC
Under abnormal conditions such as a short on SCSI TERMPWR, + 5 V
current may be higher. At temperatures of at least 25 °C a current of
4 A is sustained no longer than 30 seconds before the self-resetting
TERMPWR short circuit protection device (F1) opens.
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A-2
Technical Specifications
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The PCI PRSNT1/ and PRSNT2/ pins are set to indicate a 7.5 W
maximum configuration.
A.1.3 Thermal, Atmospheric Characteristics
The board is designed to operate in an environment defined by the
following parameters:
•
•
•
•
Temperature range: 0 °C to 55 °C (dry bulb)
Relative humidity range: 5% to 90% noncondensing
Maximum dew point temperature: 32 °C
Storage Temperature: − 45 °C to + 105 °C (dry bulb)
A.1.4 Electromagnetic Compliance
The board is designed and implemented to minimize electromagnetic
emissions, susceptibility, and the effects of electromagnetic discharge.
The board meets the requirements of FCC Class B and CISPR 22 limits
and is marked with the FCC Class B Declaration of Conformity Symbol.
It also carries the CE mark.
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A.1.5 Safety Characteristics
The bare board meets or exceeds the requirements of UL flammability
rating 94 V0. The bare board is also marked with the supplier’s name or
trademark, type, and UL flammability rating. Since this board is installed
in a PCI bus slot, all voltages are below the SELV 42.4 V limit.
A.2 Operational Environment
The SYM8953U host adapter is designed for use in PCI computer
systems. SDMS operates the board, but the design of the board does
not prevent the use of other software.
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Operational Environment
A-3
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A.2.1 The PCI Interface
The PCI interface operates as a 32-bit DMA bus master. The connection
is made through edge connector J1, which provides connections on both
the front and back of the board. The signal definitions and pin numbers
conform to the PCI Local Bus Specification Revision 2.2 standard.
Table A.2 and Table A.3 show the signal assignments.
Note:
The + 3.3 V pins are tied together and decoupled with high
frequency bypass capacitors to ground. No current from
these 3.3 V pins is used on the board. The board derives
power from the + 5 V pins, directly and through a 3.3 V
voltage regulator. The PCI VI/O pins are used to
differentiate between a 5 V or a 3.3 V PCI environment.
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A-4
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Table A.2
PCI Connector J1 (Front)
Signal Name
Pin
Signal Name
GND
Pin
Signal Name
SERR/
Pin
−=12 V
TCK
1
2
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
AD27
+ 3.3 V
C_BE1/
AD14
GND
3
AD25
TDO
4
+ 3.3 V
C_BE3/
AD23
+ 5 V
5
GND
+ 5 V
6
AD12
INTB/
7
GND
AD10
INTD/
8
AD21
GND
GND (PRSNT1/)
RESERVED
GND (PRSNT2/)
KEYWAY
KEYWAY
RESERVED
GND
9
AD19
KEYWAY
KEYWAY
AD08
10
11
12
13
14
15
16
17
18
19
20
21
+ 3.3 V
AD17
C_BE2/
GND
AD07
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+ 3.3 V
AD05
IRDY/
+ 3.3 V
DEVSEL/
GND
AD03
CLK
GND
GND
AD01
REQ/
LOCK/
PERR/
+ 3.3 V
VI/O
VI/O
ACK64/
+ 5 V
+ 5 V
AD31
AD29
1. Highlighted signals are not connected.
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Operational Environment
A-5
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Table A.3
PCI Connector J1 (Back)
Signal Name
Pin
Signal Name
Pin
Signal Name
Pin
TRST/
+ 12 V
TMS
1
2
AD28
AD26
GND
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
GND
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
PAR
3
AD15
+ 3.3 V
AD13
AD11
GND
TDI
4
AD24
IDSEL
+ 3.3 V
AD22
AD20
GND
+ 5 V
INTA/
INTC/
+ 5 V
5
6
7
8
AD09
KEYWAY
KEYWAY
C_BE0/
+ 3.3 V
AD06
AD04
GND
RESERVED
9
+ 5 V
10
11
12
13
14
15
16
17
18
19
20
21
AD18
AD16
+ 3.3 V
FRAME/
GND
RESERVED
KEYWAY
KEYWAY
RESERVED
RST/
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TRDY/
GND
VI/O
AD02
AD00
VI/O
GNT/
STOP/
+ 3.3 V
SDONE
SBO/
GND
RESERVED
AD30
REQ64/
+ 5 V
+ 5 V
+ 3.3 V
1. Highlighted signals are not connected.
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A.2.2 The SCSI Interface
The SCSI interface conforms to ANSI X 3T10.11/1142.
The SCSI interface operates as 16-bit, synchronous or asynchronous,
SE or LVD, and supports SCSI-3 protocols and 8-bit and 16-bit
arbitration. The interface is made through connectors J2 and J3.
Active SE or LVD SCSI termination is provided automatically. SCSI
termination power is supplied by the board.
connections.
Connector J3 is a 68-pin HD right angle connector that protrudes through
the back panel bracket and is used for external connections.
Table A.4 and Table A.5 show the signal assignments for J2 and J3
respectively.
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Operational Environment
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Table A.4
Internal SCSI Connector J2
Signal Name
Pin
Signal Name
Pin
SD12+
SD13+
SD14+
SD15+
SDP1+
SD00+
SD01+
SD02+
SD03+
SD04+
SD05+
SD06+
SD07+
SDP0+
GND
1
SD12−
SD13−
SD14−
SD15−
SDP1−
SD00−
SD01−
SD02−
SD03−
SD04−
SD05−
SD06−
SD07−
SDP0−
GND
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
DIFFSENS
TERMPWR
TERMPWR
N/C
J2_SENS
TERMPWR
TERMPWR
N/C
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GND
GND
SATN+
GND
SATN−
GND
SBSY+
SACK+
SRST+
SMSG+
SSEL+
SCD+
SBSY−
SACK−
SRST−
SMSG−
SSEL−
SCD−
SREQ−
SIO−
SD08−
SD09−
SD10−
SD11−
SREQ+
SIO+
SD08+
SD09+
SD10+
SD11+
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Table A.5
External SCSI Connector J3
Signal Name
Pin
Signal Name
Pin
SD12+
SD13+
SD14+
SD15+
SDP1+
SD00+
SD01+
SD02+
SD03+
SD04+
SD05+
SD06+
SD07+
SDP0+
GND
1
SD12−
SD13−
SD14−
SD15−
SDP1−
SD00−
SD01−
SD02−
SD03−
SD04−
SD05−
SD06−
SD07−
SDP0−
GND
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
DIFFSENS
TERMPWR
TERMPWR
N/C
J3_SENS
TERMPWR
TERMPWR
N/C
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GND
GND
SATN+
GND
SATN−
GND
SBSY+
SACK+
SRST+
SMSG+
SSEL+
SCD+
SBSY−
SACK−
SRST−
SMSG−
SSEL−
SCD−
SREQ−
SIO−
SD08−
SD09−
SD10−
SD11−
SREQ+
SIO+
SD08+
SD09+
SD10+
SD11+
Note: When operated in the SE mode, all signals with the + suffix are clamped
to ground.
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A.2.3 On-Board LED
On-board LEDs are used to indicate the status of the SCSI bus.
The SCSI Activity LED lights when the SCSI bus is transferring
information.
A.2.4 The SCSI Busy LED
The SCSI Activity LED interface on the SYM8953U is a four-wire
arrangement that allows the user to connect a LED harness to the board.
The buffered GPIO0_FETCH line (maximum output low voltage 0.4 V
and minimum output low current 16 mA) is pulled low to complete the
circuit when a harness with a LED is attached. The SCSI Busy LED
connector is J4.
Table A.6
Signal Name
LED+
LED Connector J4
Pin
1
2
3
4
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LED−
LED−
LED+
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Appendix B
Glossary of Terms and
Abbreviations
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Active
Termination
The electrical connection required at each end of the SCSI bus,
composed of active voltage regulation and a set of termination resistors.
Ultra and Ultra2 SCSI require active termination.
Address
A specific location in memory, designated either numerically or by a
symbolic name.
Asynchronous
Data Transfer
One of the ways data is transferred over the SCSI bus. It is slower than
synchronous data transfer.
BIOS
Basic Input/Output System. Software that provides basic read/write
capability. Usually kept as firmware (ROM based). The system BIOS on
the mainboard of a computer is used to boot and control the system. The
SCSI BIOS on your host adapter acts as an extension of the system
BIOS.
Bit
A binary digit. The smallest unit of information a computer uses. The
value of a bit (0 or 1) represents a two-way choice, such as on or off,
true or false, and so on.
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Bus
A collection of unbroken signal lines across which information is
transmitted from one part of a computer system to another. Connections
to the bus are made using taps on the lines.
Bus Mastering
A high-performance way to transfer data. The host adapter controls the
transfer of data directly to and from system memory without interrupting
the computer’s microprocessor. This is the fastest way for multitasking
operating systems to transfer data.
Byte
A unit of information consisting of eight bits.
CISPR
A special international committee on radio interference (Committee,
International and Special, for Protection in Radio).
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Configuration
Refers to the way a computer is set up; the combined hardware
components (computer, monitor, keyboard, and peripheral devices) that
make up a computer system; or the software settings that allow the
hardware components to communicate with each other.
CPU
Central Processing Unit. The “brain” of the computer that performs the
actual computations. The term Microprocessor Unit (MPU) is also used.
DMA Bus
Master
A feature that allows a peripheral to control the flow of data to and from
system memory by blocks, as opposed to PIO (Programmed I/O) where
the processor is in control and the flow is by byte.
Device Driver
A program that allows a microprocessor (through the operating system)
to direct the operation of a peripheral device.
Differential SCSI A hardware configuration for connecting SCSI devices. It uses a pair of
lines for each signal transfer (as opposed to Single-Ended SCSI which
references each SCSI signal to a common ground).
Dword
A double word is a group of four consecutive bytes or characters that are
stored, addressed, transmitted, and operated on as a unit. The lower two
address bits of the least significant byte must equal zero in order to be
dword aligned.
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EEPROM
EISA
Electronically Erasable Programmable Read Only Memory. A memory
chip typically used to store configuration information. See NVRAM.
Extended Industry Standard Architecture. An extension of the 16-bit ISA
bus standard. It allows devices to perform 32-bit data transfers.
External SCSI
Device
A SCSI device installed outside the computer cabinet. These devices are
connected in a continuous chain using specific types of shielded cables.
Fast-20
The SCSI Trade Association (STA) supports the use of “Ultra SCSI” over
the term “Fast-20”. Please See Ultra SCSI.
Fast-40
The SCSI Trade Association (STA) supports the use of “Ultra2 SCSI”
over the term “Fast-40”. Please see Ultra2 SCSI.
Fast SCSI
A standard for SCSI data transfers. It allows a transfer rate of up to 10
Mbytes/s over an 8-bit SCSI bus and up to 20 Mbytes/s over a 16-bit
SCSI bus.
FCC
Federal Communications Commission.
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File
A named collection of information stored on a disk.
Firmware
Software that is permanently stored in ROM. Therefore, it can be
accessed during boot time.
Hard Disk
Host
A disk made of metal and permanently sealed into a drive cartridge. A
hard disk can store very large amounts of information.
The computer system in which a SCSI host adapter is installed. It uses
the SCSI host adapter to transfer information to and from devices
attached to the SCSI bus.
Host Adapter
A circuit board or integrated circuit that provides a SCSI bus connection
to the computer system.
Internal SCSI
Device
A SCSI device installed inside the computer cabinet. These devices are
connected in a continuous chain using an unshielded ribbon cable.
IRQ
Interrupt Request Channel. A path through which a device can get the
immediate attention of the computer’s CPU. The PCI bus assigns an IRQ
path for each SCSI host adapter.
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Industry Standard Architecture. A type of computer bus used in most
PCs. It allows devices to send and receive data up to 16 bits at a time.
Kbyte
Kilobyte. A measure of computer storage equal to 1024 bytes.
Local Bus
A way to connect peripherals directly to computer memory. It bypasses
the slower ISA and EISA buses. PCI is a local bus standard.
Logical Unit
A subdivision, either logical or physical, of a SCSI device (actually the
place for the device on the SCSI bus). Most devices have only one logical
unit, but up to eight are allowed for each of the eight possible devices on
a SCSI bus.
LUN
Logical Unit Number. An identifier, zero to seven, for a logical unit.
LVD Link
Low Voltage Differential link allows greater Ultra2 SCSI device
connectability and longer SCSI cables. LVD Link lowers the amplitude of
noise reflections and allows higher transmission frequencies. Detailed
information may be found in Section 1.3.4, “LVD Link Technology”.
Mainboard
A large circuit board that holds RAM, ROM, the microprocessor, custom
integrated circuits, and other components that make a computer work. It
also has expansion slots for host adapters and other expansion boards.
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Main Memory
The part of a computer’s memory which is directly accessible by the CPU
(usually synonymous with RAM).
Mbyte
Megabyte. A measure of computer storage equal to 1024 kilobytes.
Motherboard
See Mainboard. In some countries, the term Motherboard is not
appropriate.
Multitasking
Multithreading
NVRAM
The executing of more than one command at the same time. This allows
programs to operate in parallel.
The simultaneous accessing of data by more than one SCSI device. This
increases the data throughput.
NonVolatile Random Access Memory. Actually an EEPROM
(Electronically Erasable Read Only Memory chip) used to store
configuration information. See EEPROM.
Operating
System
A program that organizes the internal activities of the computer and its
peripheral devices. An operating system performs basic tasks such as
moving data to and from devices, and managing information in memory.
It also provides the user interface.
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Parity Checking
A way to verify the accuracy of data transmitted over the SCSI bus. The
parity bit in the transfer is used to make the sum of all the 1 bits either
odd or even (for odd or even parity). If the sum is not correct, the
information may be retransmitted or an error message may appear.
Passive
The electrical connection required at each end of the SCSI bus,
Termination
composed of a set of resistors. It improves the integrity of bus signals.
PCI
Peripheral Component Interconnect. A local bus specification that allows
connection of peripherals directly to computer memory. It bypasses the
slower ISA and EISA buses.
Peripheral
Devices
A piece of hardware (such as a video monitor, disk drive, printer, or
CD-ROM) used with a computer and under the computer’s control. SCSI
peripherals are controlled through a SCSI host adapter.
Pin-1
Orientation
The alignment of pin 1 on a SCSI cable connector and the pin-1 position
on the SCSI connector into which it is inserted. External SCSI cables are
always keyed to insure proper alignment, but internal SCSI ribbon cables
sometimes are not keyed.
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PIO
Programmed Input/Output. A way the CPU can transfer data to and from
memory using the computer’s I/O ports. PIO is usually faster than DMA,
but requires CPU time.
Port Address
Also Port Number. The address through which commands are sent to a
host adapter board. This address is assigned by the PCI bus.
Port Number
Queue Tags
See Port Address.
A way to keep track of multiple commands that allow for increased
throughput on the SCSI bus.
RAM
Random Access Memory. The computer’s primary working memory in
which program instructions and data are stored and are accessible to the
CPU. Information can be written to and read from RAM. The contents of
RAM are lost when the computer is turned off.
RISC Core
ROM
LSI Logic SCSI chips contain a RISC (Reduced Instruction Set
Computer) processor, programmed through microcode scripts.
Read Only Memory. Memory from which information can be read but not
changed. The contents of ROM are not erased when the computer is
turned off.
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SCAM
SCSI
SCSI Configured AutoMatically. A method to automatically allocate SCSI
IDs using software when SCAM compliant SCSI devices are attached.
Small Computer System Interface. A specification for a high-performance
peripheral bus and command set. The original standard is referred to as
SCSI-1.
SCSI-2
The current SCSI specification which adds features to the original
SCSI-1 standard.
SCSI-3
The SCSI specification which adds features to the SCSI-2 standard.
SCSI Bus
A host adapter and one or more SCSI peripherals connected by cables
in a linear chain configuration. The host adapter may exist anywhere on
the chain, allowing connection of both internal and external SCSI
devices. A system may have more than one SCSI bus by using multiple
host adapters.
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SCSI Device
Any device that conforms to the SCSI standard and is attached to the
SCSI bus by a SCSI cable. This includes SCSI host adapters and SCSI
peripherals.
SCSI ID
A way to uniquely identify each SCSI device on the SCSI bus. Each SCSI
bus has eight available SCSI IDs numbered 0 through 7 (or 0 through 15
for Wide SCSI). The host adapter usually gets the highest ID (7 or 15)
giving it priority to control the bus.
SCSI SCRIPTS
A SCSI programming language that works with the SCRIPTS processor
that is embedded on the SYM53C8XX device. These SCRIPTS reside in
in host computer system memory.
SCRIPTS
Processor
The SCRIPTS processor allows users to fine tune SCSI operations with
regard to unique vendor commands or new SCSI specifications. The
SCRIPTS processor fetches SCRIPTS instructions from system memory
to control operation of the SYM53C8XX device.
SDMS
SCSI Device Management System. A LSI Logic software product that
manages SCSI system I/O.
Single-Ended
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A hardware specification for connecting SCSI devices. It references each
SCSI signal to a common ground. This is the most common method (as
opposed to differential SCSI which uses a separate ground for each
signal).
STA
SCSI Trade Association. A group of companies that cooperate to
promote SCSI parallel interface technology as a viable mainstream I/O
interconnect for commercial computing.
Synchronous
Data Transfer
One of the ways data is transferred over the SCSI bus. Transfers are
clocked with fixed frequency pulses. This is faster than asynchronous
data transfer. Synchronous data transfers are negotiated between the
SCSI host adapter and each SCSI device.
System BIOS
Ultra SCSI
Controls the low-level POST (Power On Self Test), and basic operation
of the CPU and computer system.
A standard for SCSI data transfers. It allows a transfer rate of up to
20 Mbytes/s over an 8-bit SCSI bus and up to 40 Mbytes/s over a 16-bit
SCSI bus. SCSI Trade Association (STA) supports using the term “Ultra
SCSI” over the older term “Fast-20”.
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Ultra2 SCSI
A standard for SCSI data transfers. It allows a transfer rate of up to
40 Mbytes/s over an 8-bit SCSI bus, and up to 80 Mbytes/s over a
16-bit SCSI bus. SCSI Trade Association (STA) supports using the term
“Ultra2 SCSI” over the term “Fast-40”.
VCCI
VDE
Voluntary Control Council for Interference.
Verband Deucher Elektroniker (Association of German Electrical
Engineers).
Virtual Memory
Wide SCSI
Space on a hard disk that can be used as if it were RAM.
A SCSI-2 feature allowing 16-bit or 32-bit transfers on the SCSI bus. This
dramatically increases the transfer rate over the standard 8-bit SCSI bus.
Wide Ultra SCSI The SCSI Trade Association (STA) term for SCSI bus width 16-bits, SCSI
bus speed maximum data rate 40 Mbytes/s.
Wide Ultra2
SCSI
The SCSI Trade Association (STA) term for SCSI bus width 16-bits, SCSI
bus speed maximum data rate 80 Mbytes/s.
Word
A two byte (or 16-bit) unit of information.
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Index
duplication of SCSI IDs 2-22
A
adapter
description 3-5
adapter properties menu 3-6
alternate CHS mapping
description 3-9
Electrical Characteristics A-2
Erroneous Termination 2-18
B
Board Characteristics 1-3
boot adapter list menu 3-16
boot choice
description 3-14
boot information display mode
description 3-19
F
FDISK/MBR command
using 3-9
boot order
description 3-6
Bus configurations 2-18
front panel LED 2-14
C
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chained connection 2-12, 2-17
CHS mapping
G
global properties menu 3-18, 3-20
GPIO0_FETCH line A-10
description 3-9
Configuration Utility 3-1
Connecting the SCSI Peripherals 2-7
current status
description 3-17
host SCSI ID
D
data width
description 3-13
Detailed Installation Procedure 2-3
device identifier
Installation Procedure 2-3
description 3-13
installation procedure check list 2-24
Internal SCSI Bus Connections 2-10
Internal SCSI Device Connection 2-11
Internal SCSI Device Termination 2-19
Internal SCSI Ribbon Cable 2-10
device properties menu 3-11 to 3-12
Device Selections Menu 3-10
device/function
description 3-6
disconnect
description 3-14
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IRQ
interrupt request line 3-6
S
Safety Characteristics A-3
description 3-13
SCSI bus connections 2-7
SCSI bus scan order
description 3-8
SCSI bus termination 2-18
L
LED cable 2-14
LED Connector 2-14
LVD Link Technology 1-5
M
Main Menu Display 3-4
menus
device properties 3-11 to 3-12
global properties 3-18
Multiple Internal SCSI Devices 2-13
description 3-13
SCSI IDs 2-22
N
SCSI LED Connector 2-14
SCSI parity
next boot
description 3-17
NVM
description 3-8
nonvolatile memory 3-6
SCSI Peripherals 2-7
O
secondary cluster server
Operational Environment A-3
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P
PCI bus
description 3-5
Starting the SCSI BIOS Configuration Utility 3-1
PCI Connector J1 (Back) A-6
PCI Connector J1 (Front) A-5
PCI Interface 1-2, 1-4, A-4
peripheral device SCSI IDs 2-22
peripheral device terminators 2-18
Physical Characteristics A-1
Physical Environment A-1
port number
description 3-13
T
Termination 2-18
Termination (erroneous) 2-18
termination control
description 3-6
description 3-9
Thermal, Atmospheric Characteristics A-3
Q
queue tags
description 3-14
Ultra SCSI 2-7
Ultra2 SCSI 1-5
R
V
removable media support
description 3-8
ribbon cable 2-7
verify
description 3-14
video mode
description 3-19
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IX-2
Index
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B. M.
Tel: 303.790.1662
Tel: 303.846.3065
Tel: 219.436.4250
Tel: 888.358.9953
B. M.
Tel: 800.557.2566
Eden Prairie
W. E. Tel: 800.933.9953
Englewood
B. M.
Tel: 800.255.1469
I. E.
Insight Electronics
Tel: 317.575.3500
Minneapolis
I. E.
Tel: 303.649.1800
A. E.
Tel: 612.346.3000
W. E.
Wyle Electronics
Iowa
W. E.
Cedar Rapids
A. E.
W. E. Tel: 800.860.9953
St. Louis Park
Connecticut
Cheshire
Tel: 612.853.2280
I. E.
Tel: 612.525.9999
Alabama
Daphne
A. E.
I. E.
Tel: 203.271.5700
Tel: 203.272.5843
Tel: 319.393.0033
Mississippi
I. E.
Tel: 334.626.6190
Kansas
W. E.
Kansas City
A. E.
Lenexa
I. E. Tel: 913.492.0408
Wallingford
W. E. Tel: 800.605.9953
A. E.
Tel: 800.633.2918
Huntsville
Tel: 303.457.9953
W. E. Tel: 256.830.1119
A. E.
I. E.
W. E.
Tel: 256.837.8700
Tel: 256.830.1222
Tel: 800.964.9953
Delaware
North/South
Tel: 913.663.7900
Missouri
W. E. Tel: 630.620.0969
St. Louis
A. E.
Tel: 800.526.4812
Tel: 800.638.5988
Tel: 302.328.8968
Alaska
A. E.
I. E.
Tel: 314.291.5350
Tel: 314.872.2182
A. E.
Tel: 800.332.8638
Kentucky
W. E.
Central/Northern/ Western
A. E.
B. M.
Tel: 937.436.9953
W. E. Tel: 856.439.9110
Arkansas
Montana
W. E.
Tel: 972.235.9953
Florida
Altamonte Springs
Tel: 800.984.9503
Tel: 800.767.0329
Tel: 800.829.0146
A. E.
Tel: 800.526.1741
W. E. Tel: 801.974.9953
Arizona
Phoenix
A. E.
B. M.
W. E.
B. M.
I. E.
Tel: 407.682.1199
Tel: 407.834.6310
Nebraska
Tel: 480.736.7000
Tel: 602.267.9551
Tel: 800.528.4040
Louisiana
W. E.
North/South
A. E.
A. E.
Tel: 800.332.4375
Boca Raton
Tel: 713.854.9953
W. E. Tel: 303.457.9953
I. E.
Tel: 561.997.2540
Clearwater
Tempe
I. E.
Tucson
A. E.
Nevada
Las Vegas
Tel: 800.231.0253
Tel: 800.231.5575
I. E.
Tel: 727.524.8850
Tel: 480.829.1800
Tel: 520.742.0515
Fort Lauderdale
A. E.
Tel: 800.528.8471
A. E.
Tel: 954.484.5482
Maine
A. E.
W. E.
W. E. Tel: 702.765.7117
W. E. Tel: 800.568.9953
Miami
Tel: 800.272.9255
Tel: 781.271.9953
California
Agoura Hills
New Hampshire
B. M.
Tel: 305.477.6406
A. E.
Tel: 800.272.9255
Orlando
A. E.
B. M.
Irvine
A. E.
B. M.
I. E.
Tel: 818.865.0266
Maryland
Baltimore
A. E.
W. E.
Columbia
W. E. Tel: 781.271.9953
Tel: 407.657.3300
W. E. Tel: 407.740.7450
Tampa
W. E. Tel: 800.395.9953
St. Petersburg
New Jersey
North/South
Tel: 949.789.4100
Tel: 949.470.2900
Tel: 949.727.3291
Tel: 800.626.9953
Tel: 410.720.3400
Tel: 800.863.9953
A. E.
Tel: 201.515.1641
Tel: 609.222.6400
W. E.
B. M.
I. E.
Tel: 800.673.7461
Tel: 410.381.3131
A. E.
Tel: 727.507.5000
Mt. Laurel
Los Angeles
I. E.
Tel: 609.222.9566
A. E.
W. E.
Tel: 818.594.0404
Tel: 800.288.9953
Georgia
Atlanta
A. E.
Massachusetts
Boston
A. E.
W. E.
Burlingtonr
I. E.
Marlborough
B. M.
Woburn
B. M.
Pine Brook
W. E. Tel: 800.862.9953
Parsippany
Sacramento
Tel: 770.623.4400
Tel: 770.980.4922
Tel: 978.532.9808
Tel: 800.444.9953
A. E.
W. E.
Tel: 916.632.4500
Tel: 800.627.9953
B. M.
I. E.
Tel: 973.299.4425
W. E. Tel: 800.876.9953
Duluth
Wayne
W. E. Tel: 973.237.9010
San Diego
Tel: 781.270.9400
A. E.
B. M.
I. E.
Tel: 858.385.7500
I. E.
Tel: 678.584.0812
Tel: 800.851.2282
Tel: 801.365.3800
Tel: 858.597.3010
Tel: 800.677.6011
Tel: 800.829.9953
New Mexico
W. E. Tel: 480.804.7000
Albuquerque
Tel: 508.480.9099
Hawaii
A. E.
W. E.
Tel: 781.933.9010
San Jose
A. E.
Tel: 505.293.5119
Idaho
A. E.
A. E.
B. M.
I. E.
Tel: 408.435.3500
Tel: 408.436.0881
Tel: 408.952.7000
Michigan
Brighton
I. E.
Detroit
A. E.
W. E.
W. E. Tel: 801.974.9953
Tel: 810.229.7710
Santa Clara
Illinois
North/South
W. E.
Tel: 800.866.9953
Tel: 734.416.5800
Tel: 888.318.9953
Woodland Hills
A. E.
Tel: 847.797.7300
Tel: 314.291.5350
A. E.
Tel: 818.594.0404
Westlake Village
Chicago
B. M.
I. E.
Tel: 818.707.2101
Tel: 847.413.8530
W. E. Tel: 800.853.9953
Schaumburg
I. E.
Tel: 847.885.9700
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U.S. Distributors
by State
(Continued)
New York
South Carolina
Wisconsin
Hauppauge
A. E.
Tel: 919.872.0712
Milwaukee
I. E.
Long Island
A. E.
W. E.
Rochester
A. E.
I. E.
W. E.
Smithtown
B. M.
Tel: 516.761.0960
W. E. Tel: 919.469.1502
A. E.
W. E.
Wauwatosa
Tel: 414.513.1500
Tel: 800.867.9953
South Dakota
Tel: 516.434.7400
Tel: 800.861.9953
A. E.
Tel: 800.829.0116
I. E.
Tel: 414.258.5338
W. E. Tel: 612.853.2280
Wyoming
A. E.
W. E.
Tel: 716.475.9130
Tel: 716.242.7790
Tel: 800.319.9953
Tennessee
W. E. Tel: 256.830.1119
East/West
Tel: 800.332.9326
Tel: 801.974.9953
A. E.
Tel: 800.241.8182
Tel: 800.633.2918
Tel: 800.543.2008
Syracuse
A. E.
Tel: 315.449.4927
Texas
Austin
A. E.
B. M.
I. E.
North Carolina
Raleigh
A. E.
I. E.
W. E.
Tel: 512.219.3700
Tel: 512.258.0725
Tel: 512.719.3090
Tel: 919.859.9159
Tel: 919.873.9922
Tel: 800.560.9953
W. E. Tel: 800.365.9953
Dallas
A. E.
B. M.
Tel: 214.553.4300
Tel: 972.783.4191
North Dakota
A. E.
W. E.
Tel: 800.829.0116
Tel: 612.853.2280
W. E. Tel: 800.955.9953
El Paso
Ohio
A. E.
Tel: 800.526.9238
Cleveland
Houston
A. E.
B. M.
W. E. Tel: 800.888.9953
Richardson
I. E.
A. E.
W. E.
Dayton
A. E.
I. E.
Tel: 216.498.1100
Tel: 800.763.9953
Tel: 713.781.6100
Tel: 713.917.0663
Tel: 614.888.3313
Tel: 937.253.7501
Tel: 800.575.9953
Tel: 972.783.0800
W. E.
Rio Grande Valley
Strongsville
A. E.
Tel: 210.412.2047
B. M.
Valley View
Tel: 440.238.0404
Stafford
I. E.
Tel: 281.277.8200
I. E.
Tel: 216.520.4333
Utah
Oklahoma
Centerville
W. E.
Tulsa
A. E.
I. E.
Tel: 972.235.9953
B. M.
Murray
I. E.
Tel: 801.295.3900
Tel: 918.459.6000
Tel: 918.665.4664
Tel: 801.288.9001
Salt Lake City
A. E.
Tel: 801.365.3800
Oregon
Beavertonr
W. E. Tel: 800.477.9953
B. M.
I. E.
Tel: 503.524.0787
Tel: 503.644.3300
Vermont
A. E.
Tel: 800.272.9255
Portland
A. E.
W. E.
W. E. Tel: 716.334.5970
Tel: 503.526.6200
Tel: 800.879.9953
Virginia
A. E.
Tel: 800.638.5988
Pennsylvania
W. E. Tel: 301.604.8488
Mercer
I. E.
Pittsburgh
A. E.
W. E.
Washington
Kirkland
Tel: 412.662.2707
I. E.
Seattle
A. E.
Tel: 425.820.8100
Tel: 425.882.7000
Tel: 412.281.4150
Tel: 440.248.9996
Philadelphia
W. E. Tel: 800.248.9953
A. E.
B. M.
W. E.
Tel: 800.526.4812
Tel: 215.741.4080
Tel: 800.871.9953
West Virginia
A. E.
Tel: 800.638.5988
Rhode Island
A. E.
W. E.
800.272.9255
Tel: 781.271.9953
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Direct Sales
Representatives by State
(Component and HAB)
E. A.
E. L.
GRP
I. S.
ION
R. A.
Earle Associates
Electrodyne - UT
Group 2000
Infinity Sales, Inc.
ION Associates, Inc.
Rathsburg Associ-
ates, Inc.
Texas
Austin
ION
Arlington
ION
Tel: 512.794.9006
Tel: 817.695.8000
Tel: 281.376.2000
Houston
ION
SGY
Synergy Associates,
Inc.
Utah
Salt Lake City
Arizona
Tempe
E. A.
E. L.
Tel: 801.264.8050
Wisconsin
Muskego
Tel: 480.921.3305
R. A.
Saukville
R. A.
Tel: 414.679.8250
California
Calabasas
Tel: 414.268.1152
I. S.
Irvine
I. S.
Tel: 818.880.6480
Tel: 714.833.0300
San Diego
E. A.
Tel: 619.278.5441
Illinois
Elmhurst
R. A.
Tel: 630.516.8400
Indiana
Cicero
R. A.
Ligonier
R. A.
Tel: 317.984.8608
Tel: 219.894.3184
Tel: 317.838.0360
Plainfield
R. A.
Massachusetts
Burlington
SGY
Tel: 781.238.0870
Michigan
Byron Center
R. A.
Tel: 616.554.1460
Good Rich
R. A.
Novi
R. A.
Tel: 810.636.6060
Tel: 810.615.4000
North Carolina
Cary
GRP
Tel: 919.481.1530
Ohio
Columbus
R. A.
Tel: 614.457.2242
Dayton
R. A.
Tel: 513.291.4001
Independence
R. A.
Tel: 216.447.8825
Pennsylvania
Somerset
R. A.
Tel: 814.445.6976
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Sales Offices and Design
Resource Centers
LSI Logic Corporation
Corporate Headquarters
Tel: 408.433.8000
Maryland
Bethesda
Tel: 301.897.5800
Fax: 301.897.8389
INTERNATIONAL
Taiwan
Taipei
LSI Logic Asia, Inc.
Taiwan Branch
Tel: 886.2.2718.7828
Fax: 886.2.2718.8869
France
Paris
LSI Logic S.A.
Fax: 408.433.8989
NORTH AMERICA
Massachusetts
♦ITmelm: 3e3u.1b.l3e4E.6u3r.o1p3a.13
California
♦WTeal:lt7h8a1m.890.0180
Fax: 33.1.34.63.13.19
United Kingdom
Bracknell
Costa Mesa - Mint Technology
Tel: 949.752.6468
Fax: 949.752.6868
Fax: 781.890.6158
Germany
Munich
Burlington - Mint Technology
Tel: 781.685.3800
Fax: 781.685.3801
♦TLeSl:I 4L4o.g1i3c4E4.u4r2o6p5e4L4td
Fax: 44.1344.481039
♦LTeSl:I 4L9o.g8i9c.4G.5m8b.3H3.0
♦ITrevli:n9e49.809.4600
Fax: 49.89.4.58.33.108
Fax: 949.809.4444
Minnesota
♦Sales Offices with
Stuttgart
Tel: 49.711.13.96.90
Fax: 49.711.86.61.428
Design Resource Centers
Pleasanton Design Center
Tel: 925.730.8800
♦TMeiln:n6e1a2p.9o2lis1.8300
Fax: 612.921.8399
Fax: 925.730.8700
New Jersey
Italy
San Diego
Red Bank
Milano
♦LTeSl:I 3L9o.g0i3c9S.6.8P.7A3.71
Tel: 858.467.6981
Fax: 858.496.0548
Tel: 732.933.2656
Fax: 732.933.2643
Fax: 39.039.6057867
Cherry Hill - Mint Technology
Tel: 609.489.5530
Fax: 609.489.5531
♦STeilli:c4o0n8V.4a3lle3y.8000
Japan
Tokyo
Fax: 408.954.3353
Wireless Design Center
Tel: 858.350.5560
New York
Fairport
♦LTeSl:I 8L1o.g3i.c54K6.3K..7821
Fax: 81.3.5463.7820
Fax: 858.350.0171
Tel: 716.218.0020
Fax: 716.218.9010
Colorado
♦OTesl:a8ka1.6.947.5281
North Carolina
Raleigh
Tel: 919.785.4520
Fax: 919.783.8909
Fax: 81.6.947.5287
♦BTeolu: l3d0e3r.447.3800
Fax: 303.541.0641
Korea
Seoul
Colorado Springs
Tel: 719.533.7000
Fax: 719.533.7020
LSI Logic Corporation of
Korea Ltd
Tel: 82.2.528.3400
Fax: 82.2.528.2250
Oregon
Beaverton
Tel: 503.645.0589
Fax: 503.645.6612
Fort Collins
Tel: 970.223.5100
Fax: 970.206.5549
The Netherlands
Eindhoven
Texas
Austin
Tel: 512.388.7294
Fax: 512.388.4171
LSI Logic Europe Ltd
Tel: 31.40.265.3580
Fax: 31.40.296.2109
Florida
Boca Raton
Tel: 561.989.3236
Fax: 561.989.3237
♦PTelal:n9o72.244.5000
Singapore
Singapore
LSI Logic Pte Ltd
Tel: 65.334.9061
Fax: 65.334.4749
Georgia
Alpharetta
Tel: 770.753.6146
Fax: 770.753.6147
Fax: 972.244.5001
Houston
Tel: 281.379.7800
Fax: 281.379.7818
Tel: 65.835.5040
Fax: 65.732.5047
Illinois
Oakbrook Terrace
Tel: 630.954.2234
Fax: 630.954.2235
Canada
Ontario
Sweden
Stockholm
♦OTettl:a6w1a3.592.1263
Kentucky
Fax: 613.592.3253
♦LTeSl:I 4L6o.g8i.c44A4B.15.00
Bowling Green
Tel: 270.793.0010
Fax: 270.793.0040
Fax: 46.8.750.66.47
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International Distributors
Australia
Japan
New South Wales
Tokyo
♦TReel:p6te1c2h.9n9ic53P.9ty84L4td
Global Electronics
Corporation
Tel: 81.3.3260.1411
Fax: 81.3.3260.7100
Technical Center
Tel: 81.471.43.8200
Fax: 612.9953.9683
Belgium
Acal nv/sa
Tel: 32.2.7205983
Fax: 32.2.7251014
Yokohama-City
Macnica Corporation
Tel: 81.45.939.6140
Fax: 81.45.939.6141
China
Beijing
LSI Logic International
Services Inc.
Tel: 86.10.6804.2534
Fax: 86.10.6804.2521
The Netherlands
Eindhoven
Acal Nederland b.v.
Tel: 31.40.2.502602
Fax: 31.40.2.510255
France
Rungis Cedex
Azzurri Technology France
Tel: 33.1.41806310
Fax: 33.1.41730340
Switzerland
Brugg
LSI Logic Sulzer AG
Tel: 41.32.3743232
Fax: 41.32.3743233
Germany
Haar
EBV Elektronik
Tel: 49.89.4600980
Fax: 49.89.46009840
Taiwan
Taipei
Avnet-Mercuries
Corporation, Ltd
Tel: 886.2.2516.7303
Fax: 886.2.2505.7391
Munich
Avnet Emg GmbH
Tel: 49.89.45110102
Fax: 49.89.42.27.75
Lumax International
Corporation, Ltd
Wuennenberg-Haaren
Peacock AG
Tel: 886.2.2788.3656
Fax: 886.2.2788.3568
Tel: 49.2957.79.1692
Fax: 49.2957.79.9341
Prospect Technology
Corporation, Ltd
Hong Kong
Hong Kong
Tel: 886.2.2721.9533
Fax: 886.2.2773.3756
AVT Industrial Ltd
Tel: 852.2428.0008
Fax: 852.2401.2105
Serial Semiconductor
Corporation, Ltd
Tel: 886.2.2579.5858
Fax: 886.2.2570.3123
EastEle
Tel: 852.2798.8860
Fax: 852.2305.0640
United Kingdom
Maidenhead
India
Bangalore
Spike Technologies India
Azzurri Technology Ltd
Tel: 44.1628.826826
Fax: 44.1628.829730
♦PTeril:v9a1te.8L0t.d664.5530
Swindon
Fax: 91.80.664.9748
EBV Elektronik
Tel: 44.1793.849933
Fax: 44.1793.859555
Israel
Tel Aviv
Eastronics Ltd
Tel: 972.3.6458777
Fax: 972.3.6458666
♦Sales Offices with
Design Resource Centers
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