RAID Array 4100
User Guide
Second Edition (January 2000)
Part Number 146297-002
Compaq Computer Corporation
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Compaq StorageWorks RAID Array 4100 User Guide
Second Edition (January 2000)
Part Number 146297-002
Contents
About This Guide
Text Conventions........................................................................................................ix
Symbols in Text...........................................................................................................x
Symbols on Equipment................................................................................................x
Rack Stability .............................................................................................................xi
Getting Help ...............................................................................................................xi
Compaq Technical Support ............................................................................... xii
Compaq Website................................................................................................ xii
Compaq Authorized Reseller.............................................................................xiii
Chapter 1
Introduction
Features.................................................................................................................... 1-2
Front Panel Features................................................................................................ 1-4
Rear Panel Features ................................................................................................. 1-5
Hot-Pluggability ...................................................................................................... 1-5
Hot-Pluggable Drives .............................................................................................. 1-6
Maximum Storage ................................................................................................... 1-6
SCSI ID Assignments.............................................................................................. 1-6
Compaq StorageWorks RA4000 Controller............................................................ 1-6
Features............................................................................................................. 1-7
Hard Drive Arrays............................................................................................ 1-7
Fault Tolerance................................................................................................. 1-8
Capacity Expansion.......................................................................................... 1-8
Array Accelerator............................................................................................. 1-9
Performance Monitoring................................................................................. 1-10
Automatic Performance Tuning...................................................................... 1-10
Tagged-Command Queuing............................................................................ 1-10
System Power................................................................................................. 1-10
Redundant Power Supply....................................................................................... 1-11
iv Compaq StorageWorks RAID Array 4100 User Guide
Chapter 2
Installation
Materials Needed.....................................................................................................2-1
Installing the RAID Array 4100...............................................................................2-2
Choosing a Location................................................................................................2-3
Installing the RA4100.............................................................................................. 2-4
Environment.............................................................................................................2-5
Space Requirements.......................................................................................... 2-5
Power Requirements......................................................................................... 2-5
Grounding......................................................................................................... 2-6
Temperature Requirements...............................................................................2-6
Airflow Requirements.......................................................................................2-7
Blanking Panels................................................................................................2-8
Installation................................................................................................................2-8
Installing the RA4100.......................................................................................2-8
Installing the Hot-Pluggable Hard Drives.............................................................. 2-12
Installing the Storage Hub......................................................................................2-13
Installing the Storage Hub 7 ........................................................................... 2-13
Installing the Storage Hub 12..........................................................................2-14
Installing a Compaq Fibre Host Adapter in a Server ............................................. 2-15
Fibre Channel Cables............................................................................................. 2-15
Single-Mode Fibre Channel Cable..................................................................2-15
GBIC Option Kit............................................................................................. 2-15
Multi-Mode Fibre Channel Cable ................................................................... 2-16
Cable Installation Considerations .......................................................................... 2-17
Connecting the Power............................................................................................ 2-18
Chapter 3
Operation
Applying Power.......................................................................................................3-1
LEDs........................................................................................................................3-1
Front Panel........................................................................................................3-2
Power Supply....................................................................................................3-3
Fan Assembly ................................................................................................... 3-4
Hard Drives....................................................................................................... 3-5
About This Guide v
Chapter 4
Troubleshooting
Interpreting Component LEDs................................................................................. 4-1
Hard Drive LEDs.............................................................................................. 4-1
Fibre Host Adapter LEDs................................................................................. 4-2
RA4000 Controller LEDs................................................................................. 4-3
Fibre Channel Storage Hub LEDs.................................................................... 4-5
Fan Assembly................................................................................................... 4-7
Power Supply.................................................................................................... 4-8
Replacing Components............................................................................................ 4-9
Replacing the RA4000 Controller without RA4000 Redundant Controller..... 4-9
Replacing the RA4000 Controller with Redundant Controller....................... 4-11
Replacing the RA4000 Controller Cache ....................................................... 4-14
Replacing GBICs............................................................................................ 4-16
Removing Fibre Channel Cables.................................................................... 4-17
Replacing a Redundant Power Supply............................................................ 4-17
Replacing the Fan Assembly.......................................................................... 4-19
Replacing Hard Drives................................................................................... 4-21
Chapter 5
Running the Array Configuration Utility
Before You Begin.................................................................................................... 5-2
Starting the Array Configuration Utility.................................................................. 5-2
Accessing Online.............................................................................................. 5-3
SmartStart and Support Software CD ............................................................... 5-3
Configuration Wizards............................................................................................. 5-3
Getting Help ............................................................................................................ 5-4
Configuration Procedures........................................................................................ 5-4
Create a New Array.......................................................................................... 5-4
Step 1: Choosing a Controller for the Array..................................................... 5-5
Step 2: Grouping physical drives of the same size into an array...................... 5-7
Step 3: Creating Logical Drives ....................................................................... 5-9
Capacity Expansion........................................................................................ 5-11
Capacity Extension......................................................................................... 5-14
Online Migration............................................................................................ 5-16
Redundant Controllers.................................................................................... 5-18
Array Configuration Utility Screens...................................................................... 5-19
Main Configuration Screen............................................................................. 5-19
Controller Settings Screen.............................................................................. 5-23
Create Array Screen........................................................................................ 5-24
Create Logical Drive Screen........................................................................... 5-25
Error and Warning Messages................................................................................. 5-27
vi Compaq StorageWorks RAID Array 4100 User Guide
Running the Array Configuration Utility
continued
NetWare Online Array Configuration Utility (CPQONLIN)................................. 5-27
Auto-configuration..........................................................................................5-28
Custom Configuration.....................................................................................5-29
Handling Disk Drive Failures.........................................................................5-33
Optimizing Array Controller Performance.....................................................5-34
Chapter 6
Options ROMPaq
Running the Procedure............................................................................................. 6-1
Appendix A
Regulatory Compliance Notices
Regulatory Compliance Identification Numbers..................................................... A-1
Federal Communications Commission Notice........................................................ A-1
Modifications................................................................................................... A-2
Cables .............................................................................................................. A-2
Canadian Notice (Avis Canadien)........................................................................... A-2
European Union Notice........................................................................................... A-2
Japanese Notice....................................................................................................... A-3
Taiwanese Notice.................................................................................................... A-3
Laser Compliance ................................................................................................... A-3
Battery Replacement Notice ................................................................................... A-4
Appendix B
Electrostatic Discharge
Grounding Methods.................................................................................................B-2
Appendix C
Specifications
Appendix D
Fibre Channel Technology
Fibre Channel Standards.........................................................................................D-1
Advantages of Fibre Channel.................................................................................. D-2
Fibre Channel and External Storage Systems.........................................................D-2
Point-to-Point Connection ............................................................................... D-3
Arbitrated Loop................................................................................................D-4
Structured Format for Data Transmission............................................................... D-6
Protocol Layers................................................................................................ D-8
About This Guide vii
Appendix E
Hard Drive Arrays
The Drive Array.......................................................................................................E-1
Drive Arrays.....................................................................................................E-4
Logical Drives..................................................................................................E-4
Drive Array Benefits................................................................................................E-5
Data Protection.................................................................................................E-5
Performance Enhancement....................................................................................E-10
Distributing Data and Data Striping...............................................................E-10
Array Accelerator...........................................................................................E-11
Concurrent I/O Request Servicing..................................................................E-13
Optimized Request Management....................................................................E-13
Expanding Storage Capacity..................................................................................E-14
Online Capacity Expansion............................................................................E-16
Hard Drive Upgrades......................................................................................E-16
Other Fault Management Features.........................................................................E-17
Auto Reliability Monitoring...........................................................................E-17
Dynamic Sector Repairing..............................................................................E-17
Drive Parameter Tracking...............................................................................E-17
Drive Failure Alert Features...........................................................................E-18
Interim Data Recovery....................................................................................E-18
Automatic Data Recovery...............................................................................E-18
Appendix F
Recovering From Hard Drive Failure
Recognizing a Drive Failure.................................................................................... F-1
Fault Tolerance and Drive Failure...........................................................................F-2
Non-Fault-Tolerant (RAID 0) Logical Drive...................................................F-2
RAID 1 (Mirroring) Logical Drive................................................................... F-2
Spare Drives.....................................................................................................F-3
Replacing a Failed Drive.........................................................................................F-3
Automatic Data Recovery.................................................................................F-4
Automatic Data Recovery Failure....................................................................F-4
Compromised Fault Tolerance.................................................................................F-5
Index
About This Guide
This guide i s designed to be used as step-by-ste p instructi ons for installation
and as a reference for operation, troubl eshooting, and fut ure upgrades. It
assumes you are qualified to install and service computer equipment and that
you are trained to recognize hazards in products with hazardous energy levels,
such as the power supplies in this computer system.
WARNING: There is a risk of personal injury from hazardous energy levels. The
installation of options and routine maintenance and service of this product shall
be performed by individuals who are knowledgeable about the procedures,
precautions, and hazards associated with equipment containing hazardous
energy circuits.
ix Compaq StorageWorks RAID Array 4100 User Guide
Text Conventions
This document uses t he following convent ions to distinguish el ements of text:
Keys Keys appear in boldface. A plus sign (+) between
two keys in dicates that they sho uld be pressed
simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase.
FILENAMES File names appear in uppercase italics.
Menu Options,
Command Names,
Dialog Box Names
These elements appear in initial capital letters.
COMMANDS,
DIRECTORY NAMES,
and DRIVE NAMES
These elements appear in uppercase.
Type When you ar e instructed to type information, type
the information without pressing the Enter key.
Enter When you are i nstructed to enter information, type
the information and t hen press the Enter key.
About This Guide x
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.
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.
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.
xi Compaq StorageWorks RAID Array 4100 User Guide
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.
Rack Stability
WARNING: To reduce the risk of personal injury or damage to the equipment,
be sure that:
■ The leveling jacks are extended to the floor.
■ The full weight of the rack rests on the leveling jacks.
■ The stabilizing feet are attached to the rack, if it is a single rack
installation.
■ The racks are coupled in multiple rack installations.
■ A rack may become unstable if more than one component is extended for
any reason. Extend only one component at a time.
Getting Help
If you have a problem and have exhausted t he information in this guide, you
can get fur ther information and other help in the f ol lowing locations.
About This Guide xii
Compaq Technical Support
You are entitled to free hardware technical telephone support for your product
for as long you own the product. A technical support s pecialist w ill help y ou
diagnose the problem or guide yo u to the next st ep in the warranty pr ocess.
In North America, call the Compaq Technical Phone Support Center at
1-800-OK-COMPAQ
1
. This service is available 24 hours a day, 7 days a week.
Outside North America, call the nearest Compaq Technical Support Phone
Center. Telephone numbers for world wide T echnical S upport Centers are
listed on the Compaq website. Access the Compaq website at
http://www.compaq.com.
Be sure to have the following information available before you call Compaq:
■ Technical support registration number (if applicable)
■ Product serial number(s)
■ Product model name(s) and numbers(s)
■ Applicable error messages
■ Add-on boards or hardware
■ Third- pa r ty har dwa r e or softwa r e
■ Operating system t ype and revision level
■ Detailed, specific questions
Compaq Website
The Compaq website has information on this pro duct a s well as the latest
drivers and Flash ROM images. You can access the Compaq website at
http://www.compaq.com.
1
For continuous quality improvement, calls may be re corded or monitored.
xiii Compaq StorageWorks RAID Array 4100 User Guide
Compaq Authorized Reseller
For the name of your near est 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.
Chapter 1
Introduction
The Compaq StorageWorks RAID Array 4100 is a high-performance, external
system using various Fibre Channel devices and the Fibre Channel I/O
Standard to connect servers to external storage systems.
The Compaq StorageWorks RAID Array 4100 supports the following
components:
■ Compaq RA4100
■ Compaq RA4000 Controller (installed in the Compaq RA4100)
■ Compaq StorageWorks Fibre Channel Storage Hub 7 or 12
■ Fibre Channel cables
Multi-mode for distances between 2 and 500 meters
Single-mode for distances of more than 500 meters and up to
10 kilometers
■ GigaBit Interface Converter (GBIC) modules
Shortwave GBICs for use with multi-mode cables
Longwave GBIC for use with single-mode cables (optional)
■ Hot-pluggable power supply
■ Redundant hot-pluggable power supply
■ Hot-pluggable redundant fan assembly
■ SmartStart and Support Software CD
1-2 Compaq StorageWorks RAID Array 4100 User Guide
■ Wide-Ultra SCSI-3, Fast-Wide SCSI, and Fast SCSI-2 hard drive
support
The Compaq StorageWorks RA4100 comes in a rack-mountable model, as
shown in Figure 1-1.
Figure 1-1. Compaq StorageWorks RA4100
Features
Table 1-1
RA4100 Features
Features Description
Form Factors 19-inch rack
Models Rack-mountable
Controller RAID 0, 1, 4, and 5
64-MB Read/Write Cache
Maximum Number of Drives 12 (1-inch)
Supported Drives Compaq Hot Plug Ultra2 Disk Drives
Hard Drive Interface Wide-Ultra SCSI-3
Host Interface Fibre Channel Arbitrated Loop
continued
Introduction 1-3
Table 1-1
RA4100 Features
continued
Features Description
SCSI ID Select Automatic
Options
Longwave GBIC
Hot-Pluggable Components Drives
Fan Assembly
Redundant Power Supply
LEDs Hard Drives
Storage System Front Panel
Fan Assembly
RA4000 Controller
Power Supply
Warranty Three-years parts and labor
On-site where available
1-4 Compaq StorageWorks RAID Array 4100 User Guide
Front Panel Features
Figure 1-2 shows the front panel controls accessible to the user.
1
2
3
Figure 1-2. Front panel
Power switch
Power LED
Fault LED
Introduction 1-5
Rear Panel Features
Figure 1-3 shows the features and accessible components on the rear panel.
1
2
5
3
4
Figure 1-3. Rear panel features
Power supply
Blank panel (Redundant RA4000 Controller)
RA4000 Controller
Redundant power supply bay
Fan Assembly
Hot-Pluggability
Hot-pluggability refers to the ability to remove and replace components
without powering down the system. There are four components in the Compaq
RA4100 that are considered hot-pluggable:
Hard Drives—Failed hot-pluggable drives in RAID 1, 4, and 5 configurations
can be replaced without interrupting system operation. Data on the failed drive
is restored automatically on the replacement drive online.
Fan Assembly—If one of the cooling fans in the assembly fails (indicated by
an amber fan LED), the fan assembly can be removed and replaced. The fan
assembly must be replaced within five minutes of removal to ensure system
operation continues without interruption.
Power supply—The redundant power supply allows you to remove either
power supply and replace it without interrupting system operation.
1-6 Compaq StorageWorks RAID Array 4100 User Guide
RA4000 Controller—If the failed RA4000 Controller cache is replaced with
the same size cache on the existing RA4000 Controller, the controller can be
removed, the cache replaced, and the controller reinstalled without interrupting
system operation. To change the cache size, you must power down the system.
See Chapter 4, “Troubleshooting,” for specific limitations when replacing
hot-pluggable components.
Hot-Pluggable Drives
The Compaq RA4100 supports 1-inch Compaq Hot Plug Ultra2 Disk Drives.
The RA4100 accepts 1-inch standard height drives. You must mount the drives
on Compaq hot-pluggable drive trays. SCSI IDs are assigned automatically
according to the drive location.
Maximum Storage
You may install a maximum of 12 drives in the Compaq RA4100.
SCSI ID Assignments
Each device on a SCSI bus must have a unique identification number in the
range of 0 to 6. The SCSI ID determines the device priority when attempting
to use the SCSI bus. The highest priority, SCSI ID 7, is reserved for the
controller.
SCSI IDs are assigned automatically in the storage system according to the
drive bay used for each drive. It is not necessary to assign SCSI IDs manually.
The SCSI ID for each bay is indicated on the front panel.
Compaq StorageWorks RA4000 Controller
The RA4000 Controller is a drive array controller designed for installation in
the RA4100. The RA4000 Controller supports Wide-Ultra SCSI-3, Fast-Wide
SCSI-2, and Fast SCSI-2. The RA4100 is equipped with one installed RA4000
Controller.
Introduction 1-7
Features
The advanced features supported by the RA4000 Controller are:
■ Support for RAID 0, 1, 4, and 5 fault-tolerance options
■ Fibre Channel support for connection to the server
■ Support for Compaq Hot Plug Ultra2 Disk Drives at Wide-Ultra SCSI-3
speeds.
■ Online Capacity Expansion (Microsoft Windows NT and Novell
NetWare only)
■ Online Volume Extension (Windows NT requires reboot)
■ Online Stripe Size Migration
■ Online RAID Migration
■ Removable RA4000 Controller Cache
■ Battery-backed 64-MB Cache with ECC memory
■ Controller board containing a 16-MB Read Cache
■ Performance monitoring through Compaq Insight Manager
■ Automatic performance tuning
■ Pre-failure notification on hard disk drives
■ Array Configuration Utility (ACU)
■ Read-ahead caching
■ Tagged-command queuing
■ Multiple logical drives per RA4100
■ Array Diagnostics Utility (ADU)
Hard 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 it concurrently from multiple
drives in the array, yielding faster I/O rates than nonarrayed drives. Each
logical drive in the array can be set to a different fault-tolerant configuration.
The RA4000 Controller manages the drive array independent of the host
processor. For more information on storage expansion, see Appendix E, “Hard
Drive Arrays.”
1-8 Compaq StorageWorks RAID Array 4100 User Guide
There are several ways to configure each set of hardware. The Array
Configuration Utility helps you configure the hardware in the way that best
suits your needs. See Chapter 5, “Running the Array Configuration Utility,”
for information on the Array Configuration Utility.
Fault Tolerance
Fault tolerance refers to several possible methods used to protect your system
from data loss in the event of a hardware failure somewhere in the storage
system. Each method has its advantages; choosing one requires careful
planning for your particular requirements.
The fault-tolerance methods supported by the RA4000 Controller and the
Compaq Array Configuration Utility include:
■ Distributed data guarding (RAID 5)
■ Data guarding (RAID 4)
■ Drive mirroring (RAID 1)
■ No fault tolerance (RAID 0)
Further data protection can be achieved by assigning an online spare to any
RAID 1, RAID 4, or RAID 5 configuration. For more information on fault
tolerance settings, see Appendix E, “Hard Drive Arrays.”
Capacity Expansion
Capacity Expansion refers to the ability to add storage capacity to an existing
array by adding hard drives.
The Array Configuration Utility lets you perform Capacity Expansion, 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, the storage expansion can also be performed online, without leaving
the server operating system. For more information on storage expansion, see
Appendix E, “Hard Drive Arrays.”
Introduction 1-9
Array Accelerator
WARNING: There is risk of fire and burns if the battery pack is not handled
properly. For precautions regarding batteries, see Appendix A, “Regulatory
Compliance Notices.”
The Array Accelerator consists of the 16-MB Read Cache on the controller
board and 48-MB Read/Write ECC battery-backed removable cache.
The RA4000 Controller Array Accelerator improves 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, then write the data to
the drives at a later time. 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 RA4000
Controller receives a read request for the cached data, it is sent immediately
into the system. You may disable the Array Accelerator feature using Array
Configuration Utility.
The Array Accelerator has Error Checking and Correcting (ECC) memory,
providing a high level of data integrity. ECC memory detects and corrects hard
and soft memory errors without affecting performance.
Onboard rechargeable batteries in the Array Accelerator ensure 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 cache 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 RA4000 Controller may be discharged
when you install the board. If this is the case, the Array Accelerator is disabled during
power up. This problem requires no action on your part. The Array Accelerator
automatically enables when the batteries are charged to 90% of their capacity.
It may take up to 36 hours for the internal circuitry to fully charge the batteries. The
RA4000 Controller functions properly during this time, although without the performance
advantage of the Array Accelerator.
The Array Accelerator, with backup batteries, is located on a removable
daughterboard. In the unlikely event of an RA4000 Controller failure, you may
detach the Array Accelerator from the failed RA4000 Controller and attach it
to a replacement RA4000 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 written automatically to the drives attached to
the replacement RA4000 Controller. Thus, data held in the Array Accelerator
memory is recovered despite failure of the main RA4000 Controller.
1-10 Compaq StorageWorks RAID Array 4100 User Guide
Performance Monitoring
Compaq Insight Manager can be used to monitor the performance of several
RA4000 Controller parameters. The displayed parameters include CPU usage,
total number of read and write commands processed, and average time to
process a read or write command. Also displayed for each logical drive are
total I/O count, number of read and write requests, and number of sectors read
or written. Use Insight Manager to monitor the performance of your drive
arrays.
Automatic Performance Tuning
The RA4000 Controller has the ability to adjust or tune its performance
without manual intervention. For example, if caching is enabled but the
RA4000 Controller determines that it is no longer beneficial, caching is
automatically disabled. If write or read-ahead caching would improve
performance, but it has been automatically disabled, the RA4000 Controller
enables it again.
Tagged-Command Queuing
The RA4000 Controller also supports tagged-command queuing. This allows
SCSI hard drives to queue and sort multiple commands, then execute the
commands in the optimal order for highest drive performance.
System Power
System power in the Compaq RA4100 does not shut off completely with the
power switch. The two positions of the front panel power switch should be
considered as ON and STANDBY, rather than ON and OFF. The STANDBY
position removes power from most of the electronics and the drives, but
portions of the power supply and some internal circuitry remain active.
Consequently, to remove all power from the system, you must disconnect the
power cord from the storage system. In systems with multiple power supplies,
you must disconnect all the power cords to remove power completely from the
system.
WARNING: To reduce the risk of electric shock or damage to the equipment,
disconnect power from the storage system by unplugging all power cords from
either the electrical outlet or the storage system.
Introduction 1-11
Redundant Power Supply
The Compaq RA4100 includes a second power supply, which acts as a
redundant supply. The redundant power supply is identical to the primary
supply and shares the electrical load equally. If either supply fails or is
removed, the other supply takes over the full load without interruption. Hotpluggability allows you to replace the failed supply without shutting the
system down. See Chapter 4, “Replacing a Redundant Power Supply” for
more information.
Chapter 2
Installation
This chapter provides information for installing and configuring the Compaq
StorageWorks RAID Array 4100.
Materials Needed
IMPORTANT: To take advantage of all features and make sure you have the latest
firmware update, check the Compaq website at www.compaq.com.
To install the Compaq StorageWorks RAID Array 4100, you will need the
following materials:
■ Compaq RA4100
■ Rack mounting hardware
Left and right mounting brackets (supplied)
Mounting screws and cage nuts (supplied)
#2 Phillips screwdriver (not supplied)
■ Compaq Hot Plug Ultra2 Disk Drives (s)
■ Compaq StorageWorks RA4000 Controller (pre-installed)
■ Compaq StorageWorks Fibre Channel Host Adapter/P or Compaq
StorageWorks Fibre Channel Host Adapter/E
■ Compaq StorageWorks Fibre Channel Storage Hub 7 or 12 and
mounting hardware (if required)
2-2 Compaq StorageWorks RAID Array 4100 User Guide
■ GigaBit Interface Converter (GBIC) modules (Two GBICs are required
for each Fibre Channel cable installed.)
Short-wave GBIC option kit for use with multi-mode cables
(part number 234459-B21)
NOTE: Two Short-wave GBICs are provided with each RA4100 and Fibre Host
Adapter.
Long-wave GBIC option kit for use with single-mode cables
(part number 340412-B21)
NOTE: Single-mode Fibre Channel cables are not provided with this kit. A list of
Fibre Channel cable suppliers can be found at the Compaq website:
www.compaq.com
■ Fibre Channel cable
Multi-mode for distances from 2 meters to 500 meters
2-meter multi-mode cable kit, part number 234457-B21
5-meter multi-mode cable kit, part number 234457-B22
15-meter multi-mode cable kit, part number 234457-B23
Single-mode for distances of more than 500 meters and up to
10 kilometers
■ AC power cord (supplied)
■ Pencil (not supplied)
■ Cage nut installation tool (not supplied)
Installing the RAID Array 4100
To install the Compaq StorageWorks RAID Array 4100, you will need to:
1. Choose a location.
2. Install the RA4100 in the rack.
3. Install the hot-pluggable drive(s).
4. Install the Compaq StorageWorks Fibre Channel Storage Hub. Refer to
the documentation supplied with this device for details on installation
and rack mounting.
Installation 2-3
5. Install the Fibre Host Adapter in an available slot in the server. Refer to
the Compaq StorageWorks Fibre Channel Host Bus Adapter Installation
Guide and the server documentation for details about installing option
boards.
6. Install a GigaBit Interface Converter (GBIC) module in the receptacle
provided at the Fibre Host Adapter and the RA4000 Controller. The
Fibre Channel Storage Hub requires two GBICs-- one for each cable
attached.
7. Connect the Fibre Host Adapter, the RA4000 Controller, and the Fibre
Channel Storage Hub together using appropriate lengths of Fibre
Channel cable.
8. Plug in the power cord(s).
9. Apply power to the equipment in the following order:
a. Fibre Channel Storage Hub
b. RA4100
c. Server
10. Run System ROMPaq and install operating system drivers supporting
the Fibre Host Adapter, using the Compaq SmartStart and Support
Software CD.
11. Run the Array Configuration Utility. (See Chapter 5, “Running the
Array Configuration Utility,” for more information.)
Choosing a Location
Choose an installation location with the following features:
■ Higher in the rack than many other components
IMPORTANT: For help in placing the storage system in the 19-inch rack, refer to the
following documentation:
■ Rack Resource CD Kit (shipped with Compaq racks or available through a Compaq
authorized reseller)
■ Rack Builder Configuration Tool CD (available on the Compaq website or can be
ordered with the Rack Resource CD Kit)
■ Rack Information Library CD (available on the Compaq website or can be ordered
with the Rack Resource CD Kit)
■ A grounded electrical outlet that is easily accessible and located as near
the storage system as possible
2-4 Compaq StorageWorks RAID Array 4100 User Guide
Installing the RA4100
Before beginning these procedures, make sure you understand the following
warnings and caution:
WARNING: To reduce the risk of personal injury or damage to the equipment,
be sure that:
■ The leveling jacks are extended to the floor.
■ The full weight of the rack rests on the leveling jacks.
■ The stabilizing feet are attached to the rack, if it is a single rack
installation.
■ The racks are coupled in multiple rack installations.
■ A rack may become unstable if more than one component is extended for
any reason. Extend only one component at a time.
WARNING: To reduce the risk of electric shock or damage to the equipment:
■ Do not disable the power cord grounding plug. The grounding plug is an
important safety feature.
■ Plug the power cord into a grounded (earthed) electrical outlet that is
easily accessible at all times.
■ Install the power supply before connecting the power cord to the power
supply.
■ Unplug the power cord before removing the power supply.
■ If the system has multiple power supplies, disconnect power from the
system by unplugging all power cords from the power supplies.
CAUTION: The Compaq RA4100 must always be operated with the system unit
cover on. Proper cooling will not be achieved if the system unit cover is
removed.
Installation 2-5
Environment
When installing your Compaq RA4100 in a rack, certain temperature
standards and power requirements must be met.
Space Requirements
The following requirements must be considered when deciding where to install
your rack:
■ Clearance in the front of the rack should be a minimum of 25 inches for
the front door to open all the way and for adequate airflow.
■ Clearance in the back of the rack should be a minimum of 30 inches to
allow for servicing and for adequate airflow.
■ Clearance on each side should be a minimum of 15 inches to allow for
servicing the power supply.
Power Requirements
WARNING: To reduce the risk of personal injury, fire, or damage to the
equipment, do not overload the AC supply branch circuit that provides power to
the rack. Consult the electrical authority having jurisdiction over your facility
wiring and installation requirements.
■ The power load needs to be balanced between available AC supply
branch circuits.
■ The overall system AC current load must not exceed 80 percent of the
branch circuit AC current rating.
■ If power strips are used, the load should not exceed 80 percent of the
power strips marked electrical current rating.
The installation of this equipment shall be in accordance with Local/Regional
electrical regulations governing the installation of Information Technology
Equipment by licensed electricians. This equipment is designed to operate in
installations covered by the National Electric Code (ANSI/NFPA 70, 1993)
and the code for Protection of Electronic Computer/Data Processing
Equipment (NFPA-75, 1992).
For electrical power ratings on options, refer to the product’s rating label or to
the user documentation supplied with that option.
2-6 Compaq StorageWorks RAID Array 4100 User Guide
Grounding
For proper operation and safety, this equipment is required to be grounded
properly in accordance with NFPA 70-1993, Article 250. All power
distribution devices, branch wiring, and receptacles must be listed grounding
type devices.
Due to the higher ground leakage currents associated with the equipment,
Compaq recommends the use of a Power Distribution Unit (PDU) that
provides a supplementary ground conductor. This supplementary ground
conductor should be permanently connected to a suitable building ground
terminal. The use of common power outlet strips for this equipment is not
recommended.
For proper operation and safety, this equipment is required to be properly
grounded. In the United States, install the equipment in accordance with
NFPA 70-1993 (National Electric Code) Article 250, as well as any local and
regional building codes. In Canada, the equipment should be installed in
accordance with Canadian Standards Association, CSA C22.1, Canadian
Electrical Code. In all other countries, the installation should follow any
regional or national electrical wiring codes, such as the International
Electrotechnical Commission (IEC) 364 parts 1 through 7. All power
distribution devices used in the installation, including branch wiring,
receptacles, and so on, should be Listed or Certified ground-type devices.
WARNING: To reduce the risk of electrical shock, due to high leakage currents,
a reliable grounded connection (earthed) is essential, before connecting the unit
to an AC supply.
When using power strips for electrical distribution, make sure that ground
integrity is maintained for each connection made. Plug each component into a
reliably grounded outlet.
Temperature Requirements
To ensure continued safe and reliable operation of the equipment, locate the
system in a well-ventilated, climate-controlled environment.
The Compaq Maximum Recommended Ambient Operating Temperature
(TMRA) for most products is 35°C (95°F). Therefore, the temperature in the
room where the rack is located should not exceed
35°C (95°F).
The operating temperature inside the rack will always be higher than the room
temperature, and will depend on the configuration of equipment in your rack.
The TMRA for each piece of equipment should be checked before installation.
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