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Compaq 166207-B21 - Smart Array 5302/32 RAID Controller, Controller User Manual

Compaq Smart Array 5300 Controller
User Guide
Part Number 135606-004
May 2002 (Fourth Edition)
© 2002 Compaq Information Technologies Group, L.P.
All other product names mentioned herein may be trademarks of their respective companies.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided “as is” without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.
Compaq Smart Array 5300 Controller User Guide
May 2002 (Fourth Edition) Part Number 135606-004

Contents

About This Guide
Important Safety Information ............................................................................................ ix
Symbols on Equipment...................................................................................................... ix
Symbols in Text.................................................................................................................. x
Text Conventions............................................................................................................... xi
Related Documents............................................................................................................ xi
Getting Help......................................................................................................................xii
Compaq Technical Support........................................................................................ xii
Compaq Website ........................................................................................................xii
Compaq Authorized Reseller ....................................................................................xiii
Reader’s Comments......................................................................................................... xiii
Chapter 1
Board Components and Features
Overview of Controller Features .....................................................................................1-4
Overview of Array Accelerator Features......................................................................... 1-5
Batteries.....................................................................................................................1-6
PCI System Interface ....................................................................................................... 1-8
SCSI Support ...................................................................................................................1-8
Fault Management Features.............................................................................................1-8
Chapter 2
Installation Overview
Procedure for a New System ...........................................................................................2-1
Procedure for a Pre-configured System........................................................................... 2-2
Compaq Smart Array 5300 Controller User Guide iii
Contents
Chapter 3
Installing the Hardware
Preparing the Server........................................................................................................ 3-1
Installing the Smart Array Controller.............................................................................. 3-2
Connecting the Cables..................................................................................................... 3-3
Internal Cabling for Compaq Servers....................................................................... 3-4
External Cabling for Compaq Servers...................................................................... 3-5
Chapter 4
Updating the System Firmware
Running System ROMPaq from the CD......................................................................... 4-1
Running System ROMPaq from Diskette....................................................................... 4-2
Creating a System ROMPaq Diskette from the CD ................................................. 4-2
Creating a System ROMPaq Diskette from the SoftPaq File................................... 4-2
Using the Diskette .................................................................................................... 4-3
Chapter 5
Updating the Controller Firmware
Running Options ROMPaq from the CD........................................................................ 5-2
Running Options ROMPaq from Diskettes..................................................................... 5-3
Creating Diskettes Using the Smart Array Controller Support Software CD .......... 5-3
Creating Diskettes Using the SmartStart CD............................................................ 5-3
Creating Diskettes Using the SoftPaq File ............................................................... 5-4
Using the Diskettes................................................................................................... 5-4
Updating the System Partition ........................................................................................ 5-5
Chapter 6
Setting the Controller Order
Using RBSU.................................................................................................................... 6-1
Using ORCA ................................................................................................................... 6-2
Chapter 7
Configuring an Array
Using ORCA ................................................................................................................... 7-3
Using ACU...................................................................................................................... 7-4
Running ACU from CD............................................................................................ 7-5
Running ACU while Online ..................................................................................... 7-5
ACU Screen Descriptions......................................................................................... 7-5
iv Compaq Smart Array 5300 Controller User Guide
Typical Manual Configuration Procedures in ACU................................................ 7-16
Using CPQONLIN......................................................................................................... 7-26
Running CPQONLIN..............................................................................................7-27
Typical Manual Configuration Procedures in CPQONLIN.................................... 7-30
Chapter 8
Installing the Device Drivers
Using the Smart Array Controller Support Software CD ................................................ 8-1
Using the SmartStart CD .................................................................................................8-1
Updating the Compaq Insight Manager Agents ..............................................................8-2
Chapter 9
Upgrading and Replacing Options
Array Accelerator ............................................................................................................9-1
Battery Pack..................................................................................................................... 9-4
2- to 4-Channel Adapter Board........................................................................................9-8
Enabling RAID ADG ....................................................................................................9-12
Using the Software Key ..........................................................................................9-12
Using the Enabler Module.......................................................................................9-13
Contents
Appendix A
Regulatory Compliance Notices
Regulatory Compliance Identification Numbers ............................................................A-1
Federal Communications Commission Notice ............................................................... A-1
Class A Equipment................................................................................................... A-2
Class B Equipment................................................................................................... A-2
Declaration of Conformity for Products Marked with the FCC Logo,
United States Only ...................................................................................................A-3
Modifications ........................................................................................................... A-3
Cables....................................................................................................................... A-4
Canadian Notice (Avis Canadien) ..................................................................................A-4
Class A Equipment................................................................................................... A-4
Class B Equipment................................................................................................... A-4
Mouse Compliance Statement........................................................................................ A-4
European Union Notice .................................................................................................. A-5
Japanese Notice ..............................................................................................................A-6
Taiwanese Notice............................................................................................................ A-6
Battery Replacement Notice........................................................................................... A-7
Compaq Smart Array 5300 Controller User Guide v
Contents
Appendix B
Electrostatic Discharge
Appendix C
Controller Specifications
Appendix D
Drive Arrays and Fault Tolerance
What Is a Drive Array? ...................................................................................................D-1
Fault-Tolerance Methods ................................................................................................D-5
RAID 0—No Fault Tolerance ..................................................................................D-5
RAID 1+0—Drive Mirroring ...................................................................................D-6
RAID 5—Distributed Data Guarding.......................................................................D-7
RAID ADG—Advanced Data Guarding..................................................................D-9
Other Fault-Tolerance Options ...............................................................................D-11
Appendix E
Hard Drive Installation and Replacement
General Information About Hard Drive Failure.............................................................. E-1
Recognizing Drive Failure........................................................................................E-2
Compromised Fault Tolerance .................................................................................E-4
Automatic Data Recovery.........................................................................................E-5
General Aspects of Drive Replacement .......................................................................... E-6
Drive Failure During Rebuild................................................................................... E-7
Moving Drives and Arrays.............................................................................................. E-9
Upgrading Hard Drive Capacity............................................................................. E-10
Expanding and Extending Capacity........................................................................E-11
vi Compaq Smart Array 5300 Controller User Guide
Appendix F
Probability of Logical Drive Failure
Appendix G
POST Error Messages
Appendix H
Questions and Answers
Glossary
Index
Contents
Compaq Smart Array 5300 Controller User Guide vii
This guide provides step-by-step instructions for installation, and reference
information for operation, troubleshooting, and future upgrades for the Compaq
Smart Array 5300 Controller.

Important Safety Information

Before installing this product, read the Important Safety Information document
provided.

Symbols on Equipment

The following symbols may be placed on equipment to indicate the presence of
potentially hazardous conditions:
WARNING: This symbol, in conjunction with any of the following symbols, indicates the presence of a potential hazard. The potential for injury exists if warnings are not observed. Consult your documentation for specific details.

About This Guide

This symbol indicates the presence of hazardous energy circuits or electric shock hazards. Refer all servicing to qualified personnel.
WARNING: To reduce the risk of injury from electric shock hazards, do not open this enclosure. Refer all maintenance, upgrades, and servicing to qualified personnel.
Compaq Smart Array 5300 Controller User Guide ix
About This Guide
This symbol indicates the presence of electric shock hazards. The area contains no user or field serviceable parts. Do not open for any reason.
WARNING: To reduce the risk of injury from electric shock hazards, do not open this enclosure
This symbol on an RJ-45 receptacle indicates a network interface connection.
WARNING: To reduce the risk of electric shock, fire, or damage to the equipment, do not plug telephone or telecommunications connectors into this receptacle.
This symbol 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.
These symbols, on power supplies or systems, indicate that the equipment is supplied by multiple sources of power.
WARNING: To reduce the risk of injury from electric shock, remove all power cords to completely disconnect power from the system.
This symbol indicates that the component exceeds the recommended weight for one individual to handle safely.
Weight in kg Weight in lb
WARNING: To reduce the risk of personal injury or damage to the equipment, observe local occupational health and safety requirements and guidelines for manual material handling.

Symbols in Text

These symbols may be found in the text of this guide. They have the following meanings.
WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life.
x Compaq Smart Array 5300 Controller User Guide
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific
instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of
information.

Text Conventions

This document uses the following conventions:
• Italic type is used for complete titles of published guides or variables. Variables include information that varies in system output, in command lines, and in command parameters in text.
• Bold type is used for emphasis, for onscreen interface components (window titles, menu names and selections, button and icon names, and so on), and for keyboard keys.
About This Guide
Monospace typeface is used for command lines, code examples, screen
•
displays, error messages, and user input.
Sans serif typeface is used for uniform resource locators (URLs).
•

Related Documents

For additional information on the topics covered in this guide, refer to the following documentation:
• Compaq Array Configuration Utility XE User Guide (on the software CD provided with the server, or downloadable from the Compaq website)
• Compaq Servers Troubleshooting Guide (on the Documentation CD for the server)
Compaq Smart Array 5300 Controller User Guide xi
About This Guide
• Compaq ROM-Based Setup Utility User Guide (on the Documentation CD for the server, or downloadable from the Compaq website)

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 Technical Support

In North America, call the Compaq Technical Support Phone Center at 1-800-OK-COMPAQ. This service is available 24 hours a day, 7 days a week. For continuous quality improvement, calls may be recorded or monitored. Outside North America, call the nearest Compaq Technical Support Phone Center. Telephone numbers for worldwide Technical Support Centers are listed on the Compaq website,
www.compaq.com.
Be sure to have the following information available before you call Compaq:
• Technical support registration number (if applicable)
• Product serial number
• Product model name and number
• Applicable error messages
• Add-on boards or hardware
• Third-party hardware or software
• Operating system type and revision level

Compaq Website

The Compaq website has information on this product as well as the latest drivers and flash ROM images. You can access the Compaq website at
xii Compaq Smart Array 5300 Controller User Guide
www.compaq.com.

Compaq Authorized Reseller

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.
• Elsewhere, see the Compaq website for locations and telephone numbers.

Reader’s Comments

Compaq welcomes your comments on this guide. Please send your comments and suggestions by email to
ServerDocumentation@compaq.com.
About This Guide
Compaq Smart Array 5300 Controller User Guide xiii
1

Board Components and Features

The Compaq Smart Array 5300 Series of controllers comprises two models, the 5302 and the 5304. Model 5302 has two Wide Ultra3 SCSI channels and 128 MB of cache; model 5304 has four Wide Ultra3 SCSI channels and 256 MB of cache. You can upgrade the 5302 model to have four channels, 256 MB of cache, or both, by means of the appropriate option kits.
1
3
2
Figure 1-1: Smart Array 5304 Controller
Ite
Compaq Smart Array 5300 Controller User Guide 1-1
Description
m
1 Two internal 68-pin Wide SCSI connectors (port 1
nearer the bracket, port 2 nearer the board center)
2 Four external (VHDCI) connectors (ports 1 and 3
nearer the main board)
3 Array accelerator cache
Board Components and Features
NOTE: On both controller models, ports 1 and 2 each have two connectors (one internal and one external). However, only one connector can be used per port at any given time. Ports 3 and 4 (available on the 5304) can be used only for external drives.
1
2
Figure 1-2: Smart Array 5302 Controller
Ite
Description
m
1 Two internal 68-pin Wide SCSI connectors (port 1
nearer the bracket, port 2 nearer the board center)
2 Two external (VHDCI) connectors (port 1 nearer the
board)
3 Array accelerator cache
3
1-2 Compaq Smart Array 5300 Controller User Guide
Figure 1-3: Two- to four-channel adapter upgrade option
Board Components and Features
Figure 1-4: Array accelerator cache with batteries
For details of the controller board specifications, refer to Appendix C.
Compaq Smart Array 5300 Controller User Guide 1-3
Board Components and Features

Overview of Controller Features

• Two or four Wide Ultra3 SCSI channels, supporting up to 56 drives (4 channels, 14 drives per channel)
• Support for Microsoft Windows 2000, Windows NT 4.0, Linux, Novell NetWare
5.x, and NetWare 6 operating systems
• Support for the Compaq Universal Hot Plug Tape Drive, with storage capacity up to 100 GB and LVD transfer rates up to 12 MB per second
TM
• Support for the Compaq StorageWorks
• Backward compatibility with Wide Ultra2 devices
• Removable array accelerator
• 64-bit, 66-MHz PCI system interface
• Other features supported:
— RAID fault-tolerance (0, 1+0, 5, ADG) (refer to Chapter 9 for instructions on
enabling RAID ADG)
— Online RAID migration between any two levels
SAN Access Module
— Online array capacity expansion
— Online logical drive capacity extension
— Hot-pluggable hard drives and tape drives
— Drive movement
— Adjustable stripe size
— Performance monitoring through Compaq Insight Manager
TM
— S.M.A.R.T. hard drives
— Drive pre-failure notification
— Multiple online spares per array
— Tagged command queuing
— Background initialization
— Multiple logical drives per array
1-4 Compaq Smart Array 5300 Controller User Guide
Board Components and Features

Overview of Array Accelerator Features

The array accelerator is a high performance, battery-backed, 100-MHz SDRAM DIMM cache module.
Array controllers use cache to store read data from the hard drives. The system can later access this read data. The controller firmware uses the read-ahead and most recently used caching algorithms.
Array controllers also use cache to complete drive write operations more quickly. This use of the cache has further performance benefits:
• If the system requires data that still resides in write cache, the controller delivers
this data from the cache. This process is quicker than delivering the data from a drive.
• If the system writes new data to the same location, the controller overwrites the
cache contents. This eliminates a drive write operation.
• If the system performs a RAID 1 procedure, the controller gets mirrored data
from the cache instead of from host memory.
• If the system performs a RAID 5 procedure, the write cache collects enough data
blocks from several write accesses to carry out a full stripe write to the hard drives. This operation eliminates the need to calculate and update parity information each time that a data block is written to the drive.
With a battery-backed cache available, the array controller can complete the following operations more rapidly:
• Array capacity expansion—the expansion of a logical drive volume to include
more hard drives
• Stripe size migration—the adjustment of the size of data blocks within a stripe,
done to improve performance
• RAID level migration—the adjustment of RAID level to improve the fault
tolerance of the array
Compaq Smart Array 5300 Controller User Guide 1-5
Board Components and Features
For each of these operations, data has to be reorganized among hard drives, and must be saved to non-volatile storage during the operation. (For further details of these operations, refer to Chapter 7, Appendix D, and Appendix E.) Without battery­backed cache, the data can only be stored at empty locations within the drive array, so these operations cannot occur at all if the array is full.
If the array controller or server fails before cached data can be stored on the array, the array accelerator and its integrated batteries may be removed from one array controller and installed on another controller of the same type. Any data in the array accelerator that has not been written to the hard drive will be transferred to the other array controller.
Other features of the array accelerator include:
• Cache capacity of 96-MB or 224-MB (32 MB of the cache is used for transfer buffer)
• Adjustable read/write ratio (usually set during array configuration as described in Chapter 7, but can be changed at any time)
• Error checking and correcting (ECC) memory, providing single-bit data correction
Sometimes, the Automatic Performance Tuning feature disables the array accelerator. You can also disable the array accelerator manually through the Array Configuration Utility (refer to Chapter 7 for details).

Batteries

The array accelerator cache has two rechargeable and replaceable NiMH battery packs. If the array accelerator is removed from the array controller, the battery packs maintain any cached data on the array accelerator for up to four continuous days.
1-6 Compaq Smart Array 5300 Controller User Guide
Board Components and Features
Figure 1-5: Battery packs
This data protection (and the time limit) also applies if an equipment failure or power outage occurs. When power is restored to the system, an initialization process writes the preserved data to the hard drives.
The batteries are continuously recharged using a trickle-charging process whenever the system power is on. Under normal operating conditions, a battery pack lasts for three years before replacement is necessary.
IMPORTANT: The batteries on a new array controller may have a low charge when the controller board is first installed. In this case, a Power-On Self-Test (POST) message 1794 is displayed when the server is powered up (refer to Appendix G), indicating that the array accelerator is temporarily disabled. No action is required on your part, since the internal circuitry automatically recharges the batteries and enables the cache. The recharge process takes less than four hours. The array controller will function properly during this time, although without the performance advantage of the array accelerator. When the batteries are charged to an acceptable capacity, the array accelerator is automatically enabled.
For battery replacement instructions, refer to Chapter 9.
Compaq Smart Array 5300 Controller User Guide 1-7
Board Components and Features

PCI System Interface

Smart Array 5300 controllers interface to the server through a high-performance 64-bit PCI bus that:
• Runs at 66 MHz
• Provides a high-speed path (up to 528 MB/s) between the system board and the
controller
• Includes two parity protection signals
The Smart Array 5300 Controller is a PCI Bus Master device conforming to Rev. 2.2 of the PCI Local Bus Specification. As a bus master device, it takes control of the PCI bus during high-speed transfers, freeing the system processor to handle application processing or other types of tasks.
For maximum performance, Compaq recommends that you use only 66-MHz devices on any given 66-MHz PCI bus. Combining 66-MHz and 33-MHz devices on a PCI bus will decrease the overall bandwidth to 33-MHz speeds.

SCSI Support

The Smart Array 5300 Controller supports drives that conform to Wide Ultra3 and Wide Ultra2 standards. Although Wide Ultra2 devices operate at a different maximum speed from Wide Ultra3 devices, operating speeds are unaffected if they are connected to the same SCSI bus because they both use low voltage differential (LVD) signaling.

Fault Management Features

The array controller and the network operating system support several fault management and data reliability features that minimize the impact of hard drive defects on your system.
1-8 Compaq Smart Array 5300 Controller User Guide
Board Components and Features
• Auto-Reliability Monitoring (ARM) is a background process that scans hard
drives for bad sectors in fault-tolerant logical drives. ARM also verifies the consistency of parity data in logical drives that are using RAID 5 or RAID ADG. This process assures that you can recover all data successfully if a drive failure occurs in the future. ARM operates only when you select a fault-tolerant configuration (RAID 1 or higher).
• Dynamic sector repair by the controller automatically remaps any sectors that
have media faults (detected either during normal operation or by auto reliability monitoring).
• S.M.A.R.T. is an industry-standard diagnostic and failure-prediction feature of
hard drives, developed by Compaq in collaboration with the hard drive industry. It monitors several factors that can be used to predict imminent hard drive failure due to mechanical causes. Such factors include the condition of the read/write head, the seek error rate, and the spin-up time. When a threshold value is exceeded for one of these factors, the drive sends an alert that failure is imminent. Thus, the user can back up data and replace the drive before drive failure occurs.
NOTE: An online spare does not become active and start rebuilding when the imminent failure alert is sent, because the degraded drive has not actually failed yet and is still online. The online spare is activated only after a drive in the array has failed.
• Drive failure alert features cause an alert message to be displayed on the
system monitor when drive failure occurs. Different Compaq server models use different messages for different situations. These messages are described in your server documentation.
• Interim data recovery occurs if a drive fails in fault-tolerant configurations
(RAID 1 or higher). In this situation, the system will still process I/O requests, but at a reduced performance level. Replace the failed drive as soon as possible to restore performance and full fault tolerance for that logical drive. Otherwise, if another hard drive fails before data has been rebuilt, the logical volume will fail and data will be lost. Refer to Appendix E for more information about recovering from drive failure.
• POST or the Array Diagnostics Utility will also reveal imminent drive failure.
Compaq Smart Array 5300 Controller User Guide 1-9
Board Components and Features
• Recovery ROM is a redundancy feature that ensures continuous system availability by providing a backup ROM. This feature protects against corruption of a ROM image (caused, for example, by power fluctuation during ROM upgrade). If corruption occurs, the server automatically restarts using the remaining good copy of the ROM image.
When you upgrade the ROM, the inactive image (the one not being used by the
system) is upgraded. There is not normally any noticeable difference in operation. When you use Recovery ROM for the first time, however, both ROM images are upgraded, causing a boot delay of about 60 seconds.
Other Compaq options, such as Compaq Insight Manager, provide additional drive failure features. Refer to your authorized Compaq reseller for more information about these products.
1-10 Compaq Smart Array 5300 Controller User Guide
The details of the steps required to install the controller depend on whether the server has an operating system installed and contains data. The flowcharts in Figure 2-1 and Figure 2-2 summarize the installation procedures for the most common scenarios.

Procedure for a New System

2

Installation Overview

Install the controller
1
hardware (Chapter 3), if it is not pre-installed.
Set the boot controller
5
(Chapter 6).
:
Create at least one
6
logical drive and format it (Chapter 7).
:
Install the operating
7
system and device drivers (Chapter 8).
Figure 2-1: Controller installation in a new system
. . . . . . .
. . . . . . .
. . . . . . .
Update the system
2
firmware (Chapter 4).
Update the controller
3
firmware (Chapter 5).
Configure the system
4
(Chapter 6).
Create and format
8
additional logical drives if desired (Chapter 7).
:
:
Compaq Smart Array 5300 Controller User Guide 2-1
Installation Overview

Procedure for a Pre-configured System

Back up data (required if migrating
1
from a non-array controller).
Set the controller order (Chapter 6).
5
:
Update the controller firmware
6
(Chapter 5).
:
If using the System Configuration
7
Utility, update the system partition (Chapter 5), and then check the controller order (Chapter 6).
- - - - -
- - - - -
- - - - -
Update the system firmware
2
(Chapter 4).
:
If the controller is to be the boot
3
device, install the device driver for your operating system (Chapter 8). Otherwise, continue with step 4.
:
Install the controller hardware
4
(Chapter 3).
If the controller is not to be the boot
8
device, install the device driver for your operating system (Chapter 8).
:
Update Compaq Insight Manager
9
Agents if new versions are available (Chapter 8).
:
If migrating from a non-array
11
controller, restore data from backup.
- - - - -
Create and format logical drives as
10
desired (Chapter 7).
Figure 2-2: Controller installation in an already configured system
2-2 Compaq Smart Array 5300 Controller User Guide

Preparing the Server

Before installing the controller in the server, back up all data. This step is mandatory if you are moving non-arrayed SCSI drives to a Smart Array controller, because data is not preserved during a move between array controllers and non-array controllers.
WARNING: To reduce the risk of personal injury or damage to the equipment, consult the safety information and user documentation provided with your computer before attempting the installation.
Many computers are capable of producing energy levels that are considered hazardous. These computers are intended to be serviced by qualified personnel trained to deal with those hazards. Do not remove enclosures or attempt to bypass any interlocks that may be provided for the purpose of removing these hazardous conditions.
3

Installing the Hardware

If your server supports hot-pluggable devices, go directly to the section, “Installing the Smart Array Controller.”
To prepare a server that does not support hot-pluggable devices:
1. Close all applications.
2. Power down the server.
CAUTION: In systems using external data storage, be sure that the server is the first unit powered down and the last unit to be powered back up. Doing this ensures that the system will not erroneously mark the drives as “failed.”
3. Power down any peripheral devices that are attached to the server.
Compaq Smart Array 5300 Controller User Guide 3-1
Installing the Hardware
4. Unplug the AC power cord from the outlet, and then from the server.
IMPORTANT: If you will be replacing a Smart controller with a Smart Array controller, see the “External Cabling for Compaq Servers” section to determine the external cabling requirements.
5. Disconnect any peripheral devices from the server.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal system components and hot-plug hard drives to cool before touching them.
CAUTION: Electrostatic discharge (ESD) can damage electronic components.
Be sure that you are properly grounded before continuing the installation procedure. See Appendix B for ESD information.

Installing the Smart Array Controller

1. Remove or open the access panel.
2. Select an available 66-MHz PCI slot. Slots that use a 64-bit interface may
provide higher performance.
3. Remove the slot cover or open the hot-plug latch. Save the retaining screw, if one is present.
4. Slide the controller board along the slot alignment guide.
3-2 Compaq Smart Array 5300 Controller User Guide
Installing the Hardware
Figure 3-1: Installing a Smart Array 5300 Controller
NOTE: Your server may look slightly different from the one illustrated.
5. Press the controller board firmly into the slot so that the contacts on the board
edge are properly seated in the system board connector.
6. Secure the board in place with the hot-plug latch or retaining screw.
7. Continue by following the instructions given in “Connecting the Cables.”

Connecting the Cables

Each port on the controller supports up to 14 drives. Ports 1 and 2 each have two SCSI connectors, one for external storage units and one for internal hard drives in the server. The two connectors for a given port cannot be used simultaneously. Ports 3 and 4 (present on the 5304 model, and also on the 5302 model with an attached 2- to 4-channel adapter) are only for external storage units.
Peripherals attached to any of the connectors must have a unique SCSI ID value in the range of 0 to 15 (except ID 7, which is reserved for controller use). The SCSI ID value determines the priority given to the device when it attempts to use the SCSI bus.
Compaq Smart Array 5300 Controller User Guide 3-3
Installing the Hardware
On Compaq products that support hot-pluggable drives, the SCSI IDs for peripherals are automatically set. For non-hot-pluggable devices, the IDs must be set manually by using switches or jumpers on the device itself.
IMPORTANT: When replacing an existing Smart controller with a Smart Array controller without reconfiguring the arrays, all of the drives should be connected exactly as they were on the old controller (port 1 to port 1, controller 1 to controller 1, and so on).
SCSI buses require termination on both ends to prevent signal degradation. In Compaq servers and storage systems, however, the controller, SCSI cable, and backplane already provide this termination.

Internal Cabling for Compaq Servers

1. If the device is not hot pluggable, power down the system.
2. Install drives into the removable media bays on the server. Drives that are to be
grouped in the same array should have the same capacity.
For detailed drive installation instructions, consult the documentation that
accompanied your drives.
The exact procedure from this point depends upon whether the device is hot
pluggable.
— If the drives are hot pluggable, go to step 3.
— If the drives are not hot pluggable, go to step 4.
3. Attach the internal point-to-point SCSI cable (provided with your server) from an internal port of the controller to the hot-plug drive cage.
For duplex drive cage options, use both internal ports.
The hot-pluggable drives are now ready to use.
4. For each SCSI bus, manually set the SCSI ID on each drive to a unique value in the range of 0 to 15, except 7 (which is reserved for controller use). For detailed instructions, consult the documentation that is provided with the drive.
5. Attach the multi-device SCSI cable from the internal port 1 or port 2 of the Smart Array controller to the non-hot-pluggable hard drives.
3-4 Compaq Smart Array 5300 Controller User Guide
The multi-device cable may have been provided with your server. If you need
additional cables, order the cable option kit, Part Number 166389-B21. This cable is equipped to terminate either Wide Ultra3 or Wide Ultra2 drives.
CAUTION: Cable assembly 148785-001 is included in option kit 166389-B21 and is required with Wide Ultra3 drives. Failure to use this cable may result in reduced performance and/or data loss.
For additional information about drive installation, see Appendix E.

External Cabling for Compaq Servers

All Compaq Storage Enclosure models include external SCSI cables. Check the connector type on your storage device to identify the cable type needed. See Figure 3-2 and Table 3-1 for details.
Installing the Hardware
2
1
3
4
Figure 3-2: Identifying SCSI cable connectors
Ite
Compaq Smart Array 5300 Controller User Guide 3-5
Description
m
1 External 68-pin Wide
2 External offset VHDCI
3 Internal 50-pin narrow
4 Internal 68-pin Wide
Installing the Hardware
Table 3-1: External SCSI Cables for Compaq Enclosures
Cable Type Length Option Kit Number Cable Assembly Number
VHDCI to VHDCI 1.8 m / 6 ft 341174-B21 313374-001
VHDCI to VHDCI
VHDCI to VHDCI 7.2 m / 24 ft 164604-B21 313374-004
VHDCI to VHDCI 11.7 m / 39 ft 150214-B21 313374-005
VHDCI to Wide 1.8 m / 6 ft
VHDCI to Wide 3.6 m / 12 ft 341177-B21 313375-002
Note: If additional cables are required, order by the option kit number.
3.6 m / 12 ft
341175-B21 313374-002
341176-B21 313375-001
Up to four SCSI ports may be available for connection to external storage devices depending on whether the 2- to 4-channel adapter is attached and whether internal drives are connected to the array controller.
1. On the rear of the server, connect the cable to the VHDCI connector on the Smart Array controller, and then tighten the lock screws on the cable connector.
IMPORTANT: Offset VHDCI cables must be used with the Smart Array 5300 controller. Early versions of the VHDCI cables do not accommodate side-by-side connection of the cables to the Smart Array 5300 controller. If your storage enclosure did not include the Offset VHDCI cables, you may need to order these. See Table 4-1 for Compaq part numbers.
NOTE: Do not use a port externally if it is already being used internally.
2. Attach the other end of the cable to the Compaq storage enclosure, and then tighten the lock screws on the cable connector.
3. Replace the access panel and secure it with the thumbscrews, as required.
CAUTION: Do not operate the server with the access panel removed for extended periods of time. This precaution is to protect thermally sensitive components by ensuring the proper airflow through the server, and also to minimize personal contact with hazardous energy levels.
3-6 Compaq Smart Array 5300 Controller User Guide
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