Second Edition (March 1998)
Part Number 295469-002
Compaq Computer Corporation
Notice
The information in this publication is subject to change without notice.
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EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
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1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
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Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
SMART-2DH Array Controller Reference Guide
Second Edition (March 1998)
Part Number 295469-002
iii
Contents
About This Guide
Text Conventions..................................................................................................................ix
Symbols in Text.....................................................................................................................x
Symbols on Equipment .......................................................................................................... x
Getting Help ................................................................................................................... ......xi
Compaq Web Site ..........................................................................................................xi
Telephone Numbers .......................................................................................................xi
Chapter 1
Features
Overview of Features ......................................................................................................... 1-1
SMART-2DH Array Controller ................................................................................... 1-2
Drive Arrays ............................................................................................................... 1-3
Fault Tolerance ........................................................................................................... 1-3
Capacity Expansion..................................................................................................... 1-4
Drive Movement ......................................................................................................... 1-4
Wide-Ultra SCSI, Fast-Wide SCSI-2, and Fast-SCSI-2 ............................................... 1-5
Array Accelerator........................................................................................................ 1-5
Array Configuration Utility Features.................................................................................. 1-7
Chapter 2
Guidelines for Making Changes to Current Installation
Multiple SMART-2DH Controller Installation ................................................................... 2-1
Drive Considerations.......................................................................................................... 2 -2
Determining the Maximum Storage ................................................................................... 2-2
Expanding the Capacity of an Array................................................................................... 2-3
Changing the Fault Tolerance ............................................................................................ 2-4
Moving Drives ................................................................................................................... 2-4
Moving Arrays ................................................................................................................... 2-6
Restoring an Array to Its Original Controller ..................................................................... 2-9
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Chapter 3
Updating the Firmware
ROMPaq Diskettes............................................................................................................. 3-1
Materials Needed ........................................................................................................ 3-2
Creating Diskettes ....................................................................................................... 3-2
Running System ROMPaq.................................................................................................. 3-3
Running Option ROMPaq .................................................................................................. 3-4
Chapter 4
Running the System Configuration Utility
System Configuration Utility ............................................................................................. 4-1
System Configuration Diskettes .................................................................................. 4-2
Running the System Configuration Utility......................................................................... 4-3
Configuring the Controller ................................................................................................. 4-4
Chapter 5
Running the Array Configuration Utility
Before You Begin .............................................................................................................. 5-2
Starting the Array Configuration Utility............................................................................. 5-2
Accessing Online ........................................................................................................ 5-2
System Partition .......................................................................................................... 5-3
SmartStart and Support Software CD .......................................................................... 5-3
Array Configuration Utility Diskettes.......................................................................... 5-3
Configuration Wizards ....................................................................................................... 5-4
Online Help .................................................................................................................... ... 5-5
Configuration Procedures................................................................................................... 5-5
Creating a New Array ................................................................................................. 5-5
Array Configuration Utility Screens..................................................................................5-16
Main Configuration Screen ........................................................................................ 5-16
Controller Settings Screen..........................................................................................5-21
Create Array Screen ...................................................................................................5-23
Create Logical Drive Screen ...................................................................................... 5-24
Error and Warning Messages ............................................................................................5-25
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Chapter 6
Installing the Operating System Drivers
Novell NetWare/intraNetWare........................................................................................... 6-2
Materials Needed ........................................................................................................ 6-2
Creating Novell SSD Diskettes.................................................................................... 6-2
Additional Information................................................................................................ 6-3
Installing the Driver .................................................................................................... 6-4
Updating the Compaq Insight Manager Agents .......................................................... 6-5
Using Array Configuration Utility for NetWare/intraNetWare (CPQONLIN).............. 6-6
Optimizing Array Controller Performance................................................................... 6-6
Using the Compaq Drive Array Optimization Utility (CPQDAOPT) ........................... 6-7
Software Drive Mirroring with NetWare/intraNetWare .............................................6-10
Handling Disk Drive Failures .....................................................................................6-11
Microsoft Windows NT.....................................................................................................6-19
Materials Needed .......................................................................................................6-19
Creating the Windows NT SSD Diskettes...................................................................6-19
Additional Information...............................................................................................6-20
Installation Procedures ............................................................................................... 6-21
Updating the Compaq Insight Manager Agents ......................................................... 6-27
SCO OpenServer 5............................................................................................................6-28
Getting the Driver and Installation Information ......................................................... 6-28
Materials Needed .......................................................................................................6-28
Creating the EFS Diskettes.........................................................................................6-29
Accessing the Information..........................................................................................6-29
Updating the Compaq Insight Manager Agents ......................................................... 6-30
SCO UnixWare 2.1 or Later..............................................................................................6-31
Getting the Driver and Installation Information ......................................................... 6-31
Materials Needed .......................................................................................................6-31
Creating the EFS Diskettes.........................................................................................6-31
Accessing the Information..........................................................................................6-32
Updating the Compaq Insight Manager Agents ......................................................... 6-32
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Installing the Operating System Drivers continued
IBM OS/2 .........................................................................................................................6-34
Materials Needed .......................................................................................................6-34
Creating an SSD Diskette...........................................................................................6-34
Additional Information...............................................................................................6-35
Installing the Driver ...................................................................................................6-36
Controller Ordering....................................................................................................6-36
P a r t i t i o n i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 7
Booting OS/2 from a SMART-2DH Array Controller Drive ....................................... 6-38
Command Line Switches............................................................................................6-39
Important Information ................................................................................................6-41
Updating the Compaq Insight Manager Agents ......................................................... 6-41
Banyan VINES 6.0 or Later .............................................................................................. 6-42
Materials Needed .......................................................................................................6-42
Creating the Peripheral Adapter Support Software Diskettes ......................................6-42
Additional Information...............................................................................................6-43
Installing the Driver ...................................................................................................6-43
Microsoft Windows 95......................................................................................................6-44
Getting the Driver and Installation Information ......................................................... 6-44
Materials Needed .......................................................................................................6-44
Creating the Windows 95 Diskettes............................................................................6-45
Installing the SMART-2DH Array Controller with Windows 95.................................6-45
Appendix A
Electrostatic Discharge
Preventing Electrostatic Damage........................................................................................A-1
Grounding Methods ........................................................................................................... A-2
Appendix B
Specifications
SMART-2DH Controller....................................................................................................B-1
Wide SCSI Connector Pin Assignments ........................................................................... B-2
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Appendix C
Things You Should Know
Option Kit Contents ........................................................................................................... C-1
SMART-2DH Controller Option Kit Contents.............................................................C-1
SCSI Termination .............................................................................................................. C-2
SCSI IDs............................................................................................................................C-2
SCSI Cabling ..................................................................................................................... C-2
SCSI Cable Connectors......................................................................................................C-3
Migrating to/from Other SMART Array Controllers .......................................................... C-5
Appendix D
Understanding Drive Arrays
What is a Drive Array? ...................................................................................................... D-1
Drive Arrays ............................................................................................................... D-3
Logical Drives.............................................................................................................D-4
Drive Array Benefits..........................................................................................................D-5
Data Protection ........................................................................................................... D-5
Performance Enhancement...............................................................................................D-11
Distributing Data and Data Striping........................................................................... D-11
Array Accelerator......................................................................................................D-12
Concurrent I/O Request Servicing ............................................................................. D-14
Optimized Request Management...............................................................................D-14
Bus Master Data Transfers ........................................................................................ D-15
Expanding Storage Capacity ............................................................................................ D-15
Online Capacity Expansion ....................................................................................... D-17
Disk Drive Upgrades ................................................................................................. D-18
Other Fault Management Features....................................................................................D-18
Auto Reliability Monitoring ...................................................................................... D-19
Dynamic Sector Repairing ........................................................................................ D-19
Drive Parameter Tracking ......................................................................................... D-19
Drive Failure Alert Features ...................................................................................... D-19
Interim Data Recovery .............................................................................................. D-20
Automatic Data Recovery .........................................................................................D-20
Hot-Pluggable Drives ................................................................................................ D-21
Controller Duplexing................................................................................................. D-23
Software-Based Drive Mirroring ............................................................................... D-23
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Appendix E
Upgrading or Replacing the Array Accelerator
Accessing the SMART-2DH Controller ........................................................................... E-2
Removing the Array Accelerator Board ............................................................................. E-2
Array Accelerator Installation ............................................................................................ E-3
Array Accelerator Switch................................................................................................... E-4
Appendix F
Upgrading from the SMART SCSI Array Controller
Appendix G
Recovering from Drive Failure
Recognizing a Drive Failure...............................................................................................G-1
Fault Tolerance and Drive Failure......................................................................................G-2
A Non-Fault-Tolerant (RAID 0) Logical Drive ........................................................... G-2
A RAID 1 (Mirroring) Logical Drive .......................................................................... G-2
Spare Drives................................................................................................................G-3
Replacing a Failed Drive....................................................................................................G-3
Automatic Data Recovery ........................................................................................... G-4
Automatic Data Recovery Failure ............................................................................... G-5
Compromised Fault Tolerance ........................................................................................... G-6
Appendix H
POST Error Messages
Appendix I
Questions and Answers
Index
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ix
About This Guide
This guide is designed to be used as a reference for operation, troubleshooting,
and future upgrades.
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys appear in boldface. A plus sign (+) between two
Keys
keys indicates that they should be pressed
simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase.
File names appear in uppercase italics.
FILENAMES
Menu Options, These appear in initial capital letters.
Command Names,
Dialog Box Names
COMMANDS, These always appear in uppercase.
DIRECTORY
NAMES, and DRIVE
NAMES
Type When you are instructed to type information, type the
information without pressing the Enter key.
Enter When you are instructed to enter information, type the
information and then press the Enter key.
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x About This Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the
following meanings.
WARNING: Indicates that failure to follow directions in the warning
! could result in bodily harm or loss of life.
CAUTION: Indicates that failure to follow directions could result in
damage to equipment or loss of information.
IMPORTANT: Presents clarifying information or specific instructions.
NOTE: Presents commentary, sidelights, or interesting points of information.
Symbols on Equipment
These icons may be located on equipment in areas where hazardous conditions
may exist.
Any surface or area of the equipment marked with these
symbols indicates the presence of electrical shock hazards.
Enclosed area contains no operator serviceable parts.
WARNING: To reduce the risk of injury from electrical shock
hazards, do not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a
Network Interface Connection.
WARNING: To reduce the risk of electrical shock, fire, or
damage to the equipment, do not plug telephone or
telecommunications connectors into this receptacle.
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xi
Any surface or area of the equipment marked with these
symbols indicates the presence of a hot surface or hot
component. If this surface is contacted, the potential for injury
exists.
WARNING: To reduce the risk of injury from a hot component,
allow the surface to cool before touching.
Power Supplies or Systems marked with these symbols
indicate the equipment is supplied by multiple sources of
power.
WARNING: To reduce the risk of injury from electrical
shock, remove all power cords to completely disconnect
power from the system.
Getting Help
If you have a problem and have exhausted the information in this guide, you
can get further information and other help in the following locations.
Compaq Web Site
The Compaq Web Site has information on this product as well as the latest
drivers and Flash ROM images. You can access the Compaq Web Site by
logging on to the Internet at http://www.compaq.com.
Telephone Numbers
For the name of your nearest Compaq Authorized Reseller:
In the United States, call 1-800-345-1518
In Canada, call 1-800-263-5868
For Compaq technical support:
In the United States and Canada, call 1-800-386-2172
For Compaq technical support phone numbers outside the United States and
Canada, visit the Compaq Web Site at http://www.compaq.com.
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1-1
Chapter 1
Features
The Compaq SMART-2DH Array Controller is a dual-channel, 32-bit array
controller with many advanced features. The controller supports all SCSI hard
drives: Wide-Ultra SCSI, Fast-Wide SCSI-2, and Fast-SCSI-2. Included with
the SMART-2DH Array Controller is the Compaq Array Configuration Utility,
which provides easy drive array setup and configuration changes.
Overview of Features
Listed below are some of the features of the SMART-2DH Array Controller
option board:
Support for RAID 0, 1, 4, and 5 fault tolerance options
s
Online capacity expansion
s
Supports Wide-Ultra SCSI; a 16-bit, 20-MHz bus providing a 40-
s
Mbytes/sec data transfer rate
Support for Wide-Ultra SCSI, Fast-Wide SCSI-2, and Fast-SCSI-2
s
hard drives
Dual channels on a single board to support up to 14 drives (7 per channel)
s
Wide-Ultra SCSI/Fast-SCSI-2 (Wide SCSI) internal connector
s
Wide-Ultra SCSI/Fast-SCSI-2 (Wide SCSI) external connector
s
Removable Array Accelerator - battery-backed 16-MB Read/Write
s
Cache with ECC (Error Checking and Correcting) memory
Performance monitoring through Compaq Insight Manager
s
Automatic performance tuning
s
Pre-failure notification
s
Read-ahead caching
s
Tagged command queuing
s
Multiple logical drives per drive array
s
Support for drive and array movement
s
Available in 32-bit PCI Bus Master interface
s
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1-2 Features
SMART-2DH Array Controller
The SMART-2DH Array Controller interface to the server is a Peripheral
Component Interface (PCI) bus. The PCI bus is a high-performance, 32-bit
bus with multiplexed address and data lines, and includes a parity signal. It
provides a high-speed (up to 132 Megabytes/sec) path between the system
board and the SMART-2DH Array Controller.
The SMART-2DH Array Controller is a PCI Bus Master device and conforms
to Rev. 2.0 or greater of the PCI Local Bus Specification.
DAZ1-1.EPS
1
3
2
Figure 1-1. SMART-2DH Array Controller
Major components of the SMART-2DH Array Controller include:
Internal Wide-Ultra SCSI Port 1 connector
Array Accelerator board
External Wide-Ultra SCSI Port 2 connector
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1-3
Drive Arrays
Drive array technology distributes data across a series of hard drives to unite
these physical drives into one or more higher performance logical drives.
Distributing the data makes it possible to access data concurrently from
multiple drives in the array, yielding I/O rates faster than non-arrayed drives.
Each logical drive in the array may be set to a different fault tolerant
configuration. The SMART-2DH Array Controller manages the drive array
independent of the host processor.
There may be several possible ways to configure each set of hardware. The
Array Configuration Utility is used to help you configure the hardware in the
way that best suits your needs.
CAUTION: It is recommended that any time you move drive
arrays or change your configuration you should back up data.
See Appendix D for more information on drive arrays. See Chapter 5,
"Running the Array Configuration Utility," for information on configuring
your drive arrays using the Compaq Array Configuration Utility.
Fault Tolerance
Fault tolerance refers to several possible methods used to protect data from
being lost in the event of a hardware failure somewhere in the storage system.
Each method has its advantages, so choosing one requires careful planning for
your particular requirements.
The fault tolerance methods supported by the SMART-2DH Array Controller
and the Compaq Array Configuration Utility include:
Distributed data guarding (RAID 5)
s
Data guarding (RAID 4)
s
Drive mirroring (RAID 1)
s
No fault tolerance (RAID 0)
s
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1-4 Features
Further data protection can be achieved by assigning an online spare to any
RAID 1, RAID 4, or RAID 5 configuration. See Appendix D for more
information on these fault-tolerance methods. See Chapter 5 for information on
configuring your system for one of the fault tolerance methods.
Capacity Expansion
Capacity Expansion refers to the ability to change an existing data storage
configuration. This change usually involves adding drives to provide more
storage space.
Using the Array Configuration Utility, changing your storage configuration is
easy, even in fault-tolerant configurations, without requiring a data backup
and restore cycle. If you are using Microsoft Windows NT or Novell NetWare
operating systems with hot-pluggable drives, storage expansion can also be
performed online, without shutting down the server operating system. For
more information on storage expansion, see Appendix D, "Understanding
Drive Arrays."
Drive Movement
An array of drives can be moved from one system to another as long as the
relative order of the drives is maintained. For more information, see Chapter
2.
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1-5
Wide-Ultra SCSI, Fast-Wide SCSI-2, and Fast-SCSI-2
The SMART-2DH Array Controller complies with ANSI SCSI-2 standards,
supporting 16-bit Wide-Ultra SCSI, 16-bit Fast-Wide SCSI-2, and 8-bit Fast-
SCSI-2 (standard SCSI) devices.
Wide-Ultra SCSI
Wide-Ultra SCSI technology provides SCSI data transfer rates of up to
40-Mbytes/sec at a 20-MHz bus rate. This combination allows high
throughput in many network application environments, including resource
sharing and database servicing.
Fast-Wide SCSI-2 and Fast-SCSI-2
Fast-Wide SCSI-2 provides two bytes of data at each bus transfer, providing a
maximum of 20-Mbytes/sec data rate between SCSI devices while still
maintaining a 10-MHz bus rate.
Compaq Fast-Wide SCSI-2 controllers and devices are able to communicate
using Fast-SCSI-2 protocol when required. Therefore, Fast-SCSI-2 drives may
also be used with SMART-2DH Array Controller using the appropriate cable
adapter.
Array Accelerator
The SMART-2DH Controller Array Accelerator provides a 16-MB onboard
write cache. The result is improved performance on data access to the drive
array by serving as a posted-write cache and read-ahead cache. The write
cache can accept data from the server at 60 megabytes per second. At the
same time, read and writes caches can be accommodated by the drivers. The
read-ahead cache uses a multi-threaded algorithm to predict the next likely
read operation for the array. That data is then read into the Array Accelerator
from the drives. When the SMART-2DH Array Controller receives a read
request for the cached data, it can be brought immediately into system
memory bus speeds. The Array Accelerator feature may be disabled by
software if desired.
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1-6 Features
NOTE: The SMART-2DH Controller Array Accelerator is equipped with a
switch that may be activated to fine tune system performance. See Appendix
E for further information.
The Array Accelerator is made of ECC (Error Checking and Correcting)
memory, providing a high level of data integrity. ECC memory detects and
corrects hard and soft memory errors without affecting performance.
The Array Accelerator is backed up with onboard rechargeable batteries,
ensuring that the data temporarily held (cached) there is safe even with
equipment failure or power outage. This is particularly important for data that
has been cached by a posted-write, but has not yet been written to the hard
drives. The batteries preserve data in the Array Accelerator for up to four days.
IMPORTANT: The rechargeable batteries on a new SMART-2DH Array
Controller may be discharged when the board is first installed. During
server power up with discharged Array Accelerator batteries, Power-On
Self-Test (POST) displays the code "1794," indicating that the Array
Accelerator is disabled. This is not a problem that requires action on your
part. The Array Accelerator is automatically enabled when the batteries are
charged to 90% of their capacity.
It may take up to 36 hours for the internal circuitry to charge the batteries
fully. During this time, the Array Accelerator will be disabled, but the
SMART-2DH Array Controller will function properly, although without the
performance advantage of the Array Accelerator.
The Array Accelerator, with backup batteries, is located on a removable
daughter board. In the unlikely event of failure, the Array Accelerator can be
detached from the failed SMART-2DH Array Controller and attached to a
replacement SMART-2DH Array Controller. If the configuration information
stored in the Array Accelerator matches that stored on the drives, any valid
posted-write data being held in the cache is automatically written to the drives
attached to the replacement Array controller. Thus, data being held in the
Array Accelerator memory can be recovered despite failure of the main
SMART-2DH Array Controller board.
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1-7
Array Configuration Utility Features
The Compaq Array Configuration Utility is an easy-to-use graphical
configuration utility to help you set up and change drive array configurations.
This utility:
Provides a graphical view of Compaq drive array configurations
s
Provides express or custom initial configuration
s
Supports easy capacity expansion
s
Supports RAID 0, 1, 4, and 5 fault-tolerant configurations
s
Helps optimize your array configuration with configuration Wizards
s
Sets drive rebuild and capacity expansion priorities
s
Allows online spare (hot spare) configuration
s
Allows separate fault tolerance configuration on a logical drive basis
s
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2-1
Chapter 2
Guidelines for Making Changes
to Current Installation
Multiple SMART-2DH Controller
Installation
When you install more than one SMART-2DH Array Controller in the same
server, the following considerations apply:
Each SMART-2DH Controller has two independent SCSI channels,
s
each of which supports up to seven drives.
Each SCSI channel has its own set of unique SCSI IDs (from 0 to 6).
s
You must assign each peripheral on the bus a unique ID for that bus.
Since only one of the two SCSI ports is available on its external connector, the
other internal port must be brought out to an external connector if it is to be
used for external storage. In some servers, a connector panel is provided for
this purpose, but in others the internal port is brought out through an unused
option slot using a special connector bracket.
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2-2 Guidelines for Making Changes to Current Installation
Drive Considerations
If you will be installing or replacing drives in your Compaq server, keep in
mind that:
Drives may be Fast-SCSI-2, Fast-Wide SCSI-2, Wide-Ultra SCSI, or a mixture
s
of the three in servers and storage systems supporting hot-pluggable drives.
Drives should not contain termination. Compaq servers and internal
s
cabling provide the required termination of the SCSI bus.
Compaq hard drives supported by the SMART-2DH Controller
s
include:
1.05-GB Fast-SCSI-2
2.1-GB Fast-SCSI-2
2.1-GB Fast-Wide SCSI-2
2.1-GB Wide-Ultra SCSI
4.3-GB Fast-SCSI-2
4.3-GB Fast-Wide SCSI-2
4.3-GB Wide-Ultra SCSI
9.1-GB Wide-Ultra SCSI
9.1-GB Fast-SCSI-2
18.2-GB Wide-Ultra SCSI 3
Drives should be of the same capacity to provide the greatest storage space
s
efficiency when grouped together into the same drive array.
Except on hot-plug drives in ProLiant servers and storage systems, you must
s
manually set the SCSI ID on each drive to a unique value in the range of 0 to
6 for each SCSI bus. Consult the documentation that came with the drive for
instructions on setting the SCSI ID.
Determining the Maximum Storage
Maximum storage capacity factors of a server include:
subtract any option slots used for other purposes
s
available internal drive bays
s
availability of external connectors for SCSI Bus 1 (requires connector
s
panel location or vacant option slot)
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2-3
some operating systems limit number of logical drives or drive controllers
s
The maximum number of controllers and drives supported depends on several
factors. To determine the number of drives supported by your server, refer to
the Setup and Installation Guide, or Reference Guide, that accompanied your
server. Server specifications are also available at our website,
www.compaq.com.
Expanding the Capacity of an Array
Below is an overview of procedures for expanding the capacity of an array.
1. Review. See Appendix D, "Adding Storage Capacity," for information
on expanding the storage capacity of an existing SMART-2DH array.
2. Back up data. Although data loss is not anticipated during a normal
capacity expansion, it is a good idea to back up all data in the array
you will be expanding. This backup may also be used to return to the
original configuration, if necessary.
3. Add drives. If you are using a server or storage system that does not
support hot-pluggable drives, you will need to power down the server
or storage system to add new drives. If you are using a server or
storage system that does support hot-pluggable drives, do not power
down the system or take it offline. Simply plug the new drives into
vacant bays.
4. Configure drive array. See "Capacity Expansion" in Chapter 5 for
instructions on using the Compaq Array Configuration Utility to
reconfigure your drive array to make use of the added capacity. If your
operating system supports it, run the Array Configuration Utility online
to guide you through the process. The controller automatically
redistributes the data.
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2-4 Guidelines for Making Changes to Current Installation
Changing the Fault Tolerance
An overview of the procedures to change the fault tolerance is provided
below.
1. Decide on a fault-tolerance method. Review Appendix D,
"Understanding Drive Arrays," and choose the fault-tolerance method
that best suits your needs.
2. Back up data. Changing the fault tolerance will destroy the data on
that logical drive. You must back up all data in the logical drive that
you will be changing.
3. Configure drive array. Proceed to Chapter 5, "Running the Array
Configuration Utility," for information on reconfiguring your drive
array with the new fault-tolerance method.
4. Restore data. Copy the backed-up data into the same logical drive.
Your system automatically redistributes the data according to the new
fault-tolerance method.
Moving Drives
Drives can be moved to alternate ID positions on the same array controller as
long as their relative positions remain unchanged. (For information on moving
arrays from one controller to another, see the section in this chapter, "Moving
Arrays.") Although data loss is not anticipated during drive movement, it is
recommended you back up data before moving drives. To move drives, the
following conditions must be met:
Controller firmware is the latest revision (currently 2.02).
s
System power is OFF (includes all system components).
s
The move will not result in more than 7 physical drives and/or 32
s
logical drives (volumes) connected to a single controller.
No failed drives identified. The array should be in its original
s
configuration with no active spare drives.
Capacity expansion is not running.
s
Drives in each array must maintain same the same relative positions
s
before and after drive movement as shown in Figure 2-1.
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The original configuration in Figure 2-1 shows drive positions 0, 3, and 6
filled. The drives are moved to positions 0, 1, and 2. In both configurations,
the relative order of the drives stays the same: a, then b, then c. This example
would not work if the new configuration changed the relative orders of the
drives, that is, b, then a, then c. The new positions can also span multiple
buses as long as the relative order remains the same; in this case, think of
drive IDs 0 and 1 on SCSI port 2 as IDs (positions) 7 and 8. SCSI cables
cannot be interchanged if an array spans the two ports.
New
Original
Configuration
Configuration
ID6 c ID6
ID5 ID5
ID4 ID4
ID3 b ID3
ID2 ID2 c
ID1 ID1 b
ID0 a ID0 a
Figure 2-1. Maintaining relative drive order while moving drives within or between arrays
When the above conditions are met, follow these steps to move drives:
1. Power system OFF.
2. Move drives.
3. Power system ON. A 1724 POST message should indicate that drive
positions were changed and the configuration was updated. If the
system comes up with a 1785 (Not Configured) POST message, turn
the system off immediately to avoid data loss and return the drives to
their original locations.
4. Run Array Configuration Utility to view the new drive configuration
(optional).
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2-6 Guidelines for Making Changes to Current Installation
Moving Arrays
Moving arrays refers to consolidating arrays that exist on more than one
controller onto a single controller. To move an array to another controller, the
conditions listed previously for moving drives, and the following additional
restrictions must be met:
All of the drives in the array must be moved at the same time.
s
Positions of drives on the destination controller should not be moved at
s
the same time.
If any drives are missing or have failed, all data on the moved arrays could be
lost. To protect against data loss, data should be backed up before moving an
array. If you have previously moved an array and plan to restore it to its
original controller, see the following section, "Restoring an Array to Its
Original Controller."
Figure 2-2 shows an original distributed configuration with two controllers,
each having one array: drive IDs 0, 1, 2, and 3 constitute Array A on
Controller 1 and drive IDs 0, 1, and 2 constitute Array A on Controller 2.
Figure 2-3 shows that after removing the array from Controller 2 and adding it
to Controller 1, Controller 1 has two arrays: drive IDs 0, 1, 2, and 3 constitute
Array A and drive IDs 4, 5, and 6 constitute Array B. Controller 2 has no
arrays.
NOTE: A spare can be added as part of an array during this process.
However, it will not be restored as a spare until you run Array Configuration
Utility on the newly configured array.
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2-7
Controller 1 Controller 2
ID6 ID6
ID5 ID5
ID4 ID4
ID3 d ID3
ID2 c ID2 z
ID1 b Array A ID1 y Array A
ID0 a ID0 x
Figure 2-2. Configuration with two arrays, two controllers
Controller 1 Controller 2
ID6 z ID6
ID5 y Array B ID5
ID4 x ID4
ID3 d ID3
ID2 c ID2
ID1 b Array A ID1
ID0 a ID0
Figure 2-3. Arrays consolidated to one controller
To move an array, make sure all required conditions are satisfied, then:
1. Power system OFF.
2. Move array (include all drives in the array).
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2-8 Guidelines for Making Changes to Current Installation
3. Power system ON. A 1727 POST message should indicate that logical
drives were added to the configuration. If the system comes up with a
1785 (Not Configured) POST message, turn the system off
immediately to avoid data loss and return the drives to their original
locations.
NOTE: If you move arrays from a dual-channel controller to a single-
channel controller, you may get an error message indicating a configuration
error. If you get this error message:
Return to the previous dual-channel controller configuration.
t
Back up data on the array.
t
Move the drives to the single-channel controller.
t
Run Array Configuration Utility on the single-channel controller to
t
configure the array.
Restore data to the array.
t
4. Run Array Configuration Utility to view the new drive configuration or
to assign spare drives (optional).
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2-9
Restoring an Array to Its Original
Controller
If you have moved an array from one controller to another, you can restore it
to its original controller. Figures 2-4 through 2-6 show the consecutive
configurations required to restore an array to its original controller (or to a
replaced controller in the event of controller failure). Figure 2-4 shows the
consolidated configuration that includes Array A with drive IDs 0 through 3
and Array B with drive IDs 4, 5, and 6. Moving Array B back to Controller 2
creates an interim four-array state, with Array B on Controller 1 and Array A
on Controller 2 appearing as failed. Running Array Configuration Utility
removes the "failed" arrays and restores the original two-array configuration.
Controller 1 Controller 2
ID6 z ID6
ID5 y Array B ID5
ID4 x ID4
ID3 d ID3
ID2 c ID2
ID1 b Array A ID1
ID0 a ID0
Figure 2-4. Arrays A and B both attached to Controller 1
Controller 1 Controller 2
ID6 ID6 z
ID5 Array A ID5 y Array B
ID4 "Failed ID4 x
"
ID3 d ID3
ID2 c ID2
ID1 b Array A ID1 Array A
ID0 a ID0 "Failed"
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2-10 Guidelines for Making Changes to Current Installation
Figure 2-5. Interim four-array state
Controller 1 Controller 2
ID6 ID6 z
ID5 ID5 y Array A
ID4 ID4 x
ID3 d ID3
ID2 c ID2
ID1 b Array A ID1
ID0 a ID0
Figure 2-6. Failed arrays removed; arrays on separate controllers
To restore an array to its original controller, make sure the conditions for
moving drives are met. Then:
IMPORTANT: These steps must be followed EXACTLY. Any deviation or
mistake could result in the loss of all data across all moved arrays.
1. Power system OFF.
2. Move the array back to its original controller, but retain its drive
position as it was in the consolidated configuration.
3. Power system ON.
4. Each controller will indicate a 1789 POST message that drives are
missing. Press F2 to fail the missing drives.
5. Run Array Configuration Utility and remove the appropriate "failed"
arrays.
6. Reboot the system.
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3-1
Chapter 3
Updating the Firmware
The ROMs on all Compaq servers and most Compaq options can be updated
easily. This is done by flashing the ROM using a special Compaq utility called
ROMPaq, which replaces the existing contents of the ROM with another
version stored in a disk file. This is a convenient way to distribute new
firmware to keep Compaq products updated with the latest capabilities.
There are two ROMPaq utilities:
System ROMPaq for updating the system ROM in all Compaq servers
supporting Flash ROM. Use System ROMPaq when
installing a new SMART-2DH Controller in a Compaq
server to be sure that the server can utilize all the
capabilities of the SMART-2DH Array Controller.
Option ROMPaq for updating the onboard ROM on all Compaq options that
support flashing. Use Option ROMPaq when new versions
of the SMART-2DH Array Controller firmware or SCSI
drive firmware become available to take advantage of
expanded capabilities.
IMPORTANT: Before you install the new SMART-2DH Array Controller in
your server, you must run System ROMPaq to update the system firmware.
Use the instructions below to create diskettes with the latest version of
System ROMPaq from the Compaq SmartStart and Support Software CD
supplied with the SMART-2DH Controller.
ROMPaq Diskettes
The ROMPaq utilities must be run from diskette(s). The latest version of the
ROMPaq diskettes may be created from the Compaq SmartStart and Support
Software CD that was supplied in the SMART-2DH Controller Option Kit.
We recommend that you initially use this version of ROMPaq because it is the
latest one that supports your new SMART-2DH Controller.
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3-2 Updating the Firmware
Materials Needed
You will need the following items to create ROMPaq utility diskette(s):
Compaq SmartStart and Support Software CD (supplied in the SMART-
s
2DH Array Controller Option Kit)
One blank diskette (for System ROMPaq) or three or four blank
s
diskettes (for Option ROMPaq), depending upon your server
Access to a server or workstation with a bootable CD-ROM drive. This
s
may be the system in which you are installing the SMART-2DH
Controller.
Creating Diskettes
To create ROMPaq diskettes:
1. Boot the server from the Compaq SmartStart and Support Software CD.
2. From the Compaq System Utilities screen, select Create Support Software.
3. From the Diskette Builder screen, scroll down the list and select one of the
following three ROMPaq selections: System ROMPaq Firmware Upgrade
Diskette for Compaq ProLiant Servers, System ROMPaq Firmware
Upgrade Diskette for Compaq Systempro/XL and Compaq ProSignia
Servers, or Option ROMPaq.
4. Follow the instructions on the screen to create the ROMPaq diskette(s).
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Running System ROMPaq
System ROMPaq is used to update the firmware in Compaq servers. The
SMART-2DH Controller has enhanced drive array capabilities; many existing
servers may not be able to take advantage of these capabilities without
updated firmware. Since it is difficult to determine when the firmware needs
to be updated, Compaq recommends that you run the latest System ROMPaq
on all servers when installing a new SMART-2DH Controller. If you
purchased your server with the SMART-2DH Controller already installed, you
do not need to run System ROMPaq at the time of server installation.
CAUTION: If you are replacing an existing array controller,
such as the Compaq SMART Array Controller, with the SMART-
2DH Controller, the system may not boot after hardware
installation. It may not boot if the old array controller was the
primary controller containing the boot disk.
To avoid this problem when replacing an existing array controller
with a SMART-2DH Controller you should run System ROMPaq
before you make the hardware installation. This will ensure that
the server will recognize the SMART-2DH Controller and not hang
up on boot.
To run System ROMPaq:
1. Place the System ROMPaq diskette in the server diskette drive.
2. Boot the server by turning on the power.
3. Press Enter at the Welcome screen.
4. At the Select A Device screen, select the server from the list of the
programmable devices. This may be the only item in the list. Press Enter.
5. At the Select An Image screen you will see:
your server
Device to reprogram:
date of existing ROM version
Current ROM revision:
date of latest ROM version
Select Firmware Images:
Press Enter.
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3-4 Updating the Firmware
6. Review the information on the Caution screen:
your server
Device to reprogram:
date of existing ROM version
Current ROM revision:
date of ROM version to be installed
Selected ROM revision:
Press Enter to reprogram the system ROM or Esc to discontinue
reprogramming and return to the Select An Image screen.
7. "Reprogramming Firmware" indicates that the system ROM is being
reprogrammed. DO NOT INTERRUPT.
IMPORTANT: Do not interrupt this cycle. Interrupting the ROM
reprogramming will leave the firmware in an unknown state. You may not
be able to boot the server if this happens. You will be notified that
reprogramming is completed.
8. When ROMPaq is finished reprogramming the system ROM, press Esc
to exit the System ROMPaq Utility.
9. Remove the System ROMPaq diskette and reboot the server by cycling
the power (cold boot).
If you have not yet installed your new SMART-2DH Controller, you may do
so at this time.
Running Option ROMPaq
Option ROMPaq is used to update the firmware on Compaq options. Use
Option ROMPaq to update the capabilities of the SMART-2DH Controller and
drives whenever an updated version is available in the future. Since it is
difficult to determine when to update the firmware, Compaq recommends that
you run the latest Option ROMPaq on all SMART-2DH Controllers whenever
it becomes available.
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3-5
The latest version of firmware for the SMART-2DH Controller firmware has
already been installed. If you have older SMART-2DH Controllers or other
Compaq options, such as drives, create the Option ROMPaq diskettes and
check that the firmware on these options is at the latest revision.
To run Option ROMPaq:
1. Place the Option ROMPaq diskette 1 in the server floppy drive.
2. Boot the server by turning on the power.
3. Press Enter at the Welcome screen.
4. At the Select A Device screen, select:
ALL COMPAQ SMART-2DH Controller(s)
from the list of programmable devices. Press Enter.
5. If the ROM firmware in the SMART-2DH Controller is the same or
newer than that on the Option ROMPaq diskette, you will get the
message:
The ROM image files found for the device selected
| 189632-002
189632-003
199595-002
295242-B21
295244-001
295469-002
on-Fault-To
|
