Enterprise Virtual Array
Rack
User Guide
Par t Number: EK-E1RAK-UA. A01
First Edition August 2001
Product Version: VCS 1.0
This publication is for use by individuals responsible for installing,
operating, and maintaining the Compaq StorageWorks Enterprise
Virtual Array Rack.
b
2001 Compaq Computer Corporation.
Compaq, the Compaq logo, StorageWorks, and SANworks are trademarks of Compaq Information
Technologies Group, L.P.
UNIX is a trademark of The Open Group.
All other product names mentioned herein may be trademarks of their respective companies.
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Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under
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Compaq shall not be liable for technical or editorial errors or omissions contained herein. The
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without notice. The warranties for Compaq products are set forth in the express limited warranty
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Printed in the U.S.A.
Enterprise Virtual Array Rack User Guide
First Edition August 2001
Par t Number: EK-E1RAK-UA. A01
Contents
About this Guide
Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Symbols in Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Symbols on Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Rack Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Compaq Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Compaq Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Compaq Authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Introducing the Enterprise Storage System Rack
An Overview of the Enterprise Storage System Racks . . . . . . . . . . . . . . . . . . . . . . . . . 11
Enterprise Storage System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Basic Single-Rack Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Full Single-Rack Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
PDUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PDMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
HSV Controller Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Fibre Channel Disk Drive Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
2 Enterprise Storage System Configurations
6-Drive Enclosure Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
12-Disk Drive Enclosure Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3 Enclosure Address Bus
Enclosure Address Bus Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Drive Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Controller Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Enterprise Virtual Array Rack User Guide iii
Contents
Enclosure Address Bus Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4 Power Distribution
An Overview of Rack AC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
PDU 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
PDU 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
PDUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
PDMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5 Troubleshooting Rack Operation
An Overview of Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Troubleshooting a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Troubleshooting the Rack AC Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Troubleshooting PDU Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Troubleshooting PDU AC Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Correcting an Overload Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Troubleshooting PDM Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Troubleshooting the Enclosure Address Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Terminator Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
JB Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Single Enclosure Address Bus Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Drive Enclosure Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Controller Enclosure Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Removing and Installing a Rack Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512
A Regulatory Notices
FCC Class A Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Country-Specific Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
B Specifications
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1
Environmental Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B2
Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B3
iv Enterprise Virtual Array Rack User Guide
Contents
Glossary
Index
Figures
11 6-drive enclosure storage system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12 12-Drive enclosure storage system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
13 NEMA L6-30R receptacle, 3-wire, 30A, 60 Hz . . . . . . . . . . . . . . . . . . . . . . . . 15
14 IEC 309 receptacle, 3-wire, 30A, 50 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
15 Dual PDU assembly--top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
16 Rack PDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
17 HSV controller enclosure--front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
18 HSV controller enclosure--rear view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
19 Fibre Channel disk drive enclosure--front view . . . . . . . . . . . . . . . . . . . . . . 110
110 Drive enclosure--rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
111 Locking and unlocking a door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
21 6-drive enclosure storage system system layout . . . . . . . . . . . . . . . . . . . . . . . . 23
22 12-Drive enclosure storage system layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
31 Enclosure address bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
32 Enclosure address bus components and connections . . . . . . . . . . . . . . . . . . . . 34
33 Rack enclosure numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
41 Rack AC power distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
42 Dual PDU assembly major components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
43 Lowering a dual PDU assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
51 Removing and installing a door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512
A1 Typical enclosure certification label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Tables
1 Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
21 6-drive Enclosure Storage System Configuration. . . . . . . . . . . . . . . . . . . . . . . 22
22 12-Disk Drive Enclosure Storage System Configuration . . . . . . . . . . . . . . . . . 24
51 Possible Enclosure Address Bus Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
B1 Enterprise Storage System Rack Physical Specifications. . . . . . . . . . . . . . . . . B1
B2 Environmental Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B2
B3 Environmental Shipping or Short Term Storage Specifications. . . . . . . . . . . . B2
B4 Enterprise Storage System AC Power Specifications. . . . . . . . . . . . . . . . . . . . B3
Enterprise Virtual Array Rack User Guide v
About this Guide
The following sections are covered:
Text Conventions
Symbols in Text
Symbols on Equipment
Rack Stability
Getting Help
Compaq Authorized Reseller
Text Conventions
This document uses the conventions in Table 1 to distinguish elements of text.
Table 1: Text Conventions
Element Convention Examples
Named Keys Bold Home, Print Screen, Num Lock, Esc, PgUp
Key A plus sign (+) between two keys means that
Sequences you should press them simultaneously:
Ctrl+A, Ctrl+Home, Alt+Ctrl+Del
On the File menu, choose Save.
Initial Caps
Menu Items
(for UNIX, AIX, and Save the file in the C:\StorageSets\Default
Directory
Solaris directory names, directory.
Names
the exact case of every
(UNIX, AIX, Solaris): Save the file in the
Button
character is displayed).
/home/newuser/practice directory.
Names
To back up files, click the Backup Now button.
Dialog Box
Names In the Save As dialog box, choose the drive
then the folder.
Enterprise Virtual Array Rack User Guide vii
About this Guide
Table 1: Text Conventions (Continued)
Element Convention Examples
Initial Caps and User Input and System Responses:
User Input
and System monospace font. To exit from the program, type Exit.
Responses
At the prompt, type this command:
(Output and
COMMAND NAMES appear SHOW THIS_CONTROLLER
Error
in upper case, unless (no variable)
Messages)
they are case sensitive To see your settings, give the command:
COMMAND (UNIX, AIX, and Solaris SHOW FULL
NAMES command names are (with variable)
case sensitive and will
Drive Names
You will see the Continue? message.
not appear in uppercase).
Command Names
Use SET THIS_CONTROLLER to change
Entered
parameters.
are displayed in angle
To manage storage, enter RUN
brackets (< >) and all
sysmgr.exe
lower case.
(UNIX, AIX, Solaris): To list files, give the ls
command.
Drive Names:
Navigate to your CD-ROM drive
(usually D: or E:).
To configure storage, edit storageset.ini.
filenames Unless case sensitive,
use lowercase italics. Changes are stored in
If filenames are NewSystemConfigurationFile.ini.
case-sensitive (UNIX,
(UNIX, AIX, Solaris): Errors are logged to
AIX, Solaris) or are
MixedCaseFile.txt.
easier to understand with
some upper case letters,
the exact case of each
character is displayed.
To compare documents, choose:
Menu Command Initial Caps, with a right
Tools > Documents > Compare.
Sequences angle bracket (>)
between items. Menu
items are displayed as
shown on screen.
URLs Sans serif font. http://www.compaq.com/storage
viii Enterprise Virtual Array Rack User Guide
About this Guide
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 or damage to
equipment.
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
Any enclosed 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.
Enterprise Virtual Array Rack User Guide ix
About this Guide
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. Contact with
this surface could result in injury.
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
presence of multiple sources of power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from the
supplies and systems.
Any product or assembly marked with these symbols indicates that the
component exceeds the recommended weight for one individual to
handle safely.
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety requirements
and guidelines for manually handling material.
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.
Getting Help
If you still have a question after reading this guide, contact a Compaq Authorized
Service Provider or visit out website.
x Enterprise Virtual Array Rack User Guide
About this Guide
Compaq Technical Support
In North America, call the Compaq technical support at 1-800-OK-COMPAQ. This
service is available 24 hours a day, 7 days a week.
NOTE: For continuous quality improvement, calls may be recorded or monitored.
Outside North America, call Compaq technical support at the nearest location.
Telephone numbers for worldwide technical support are listed on the Compaq
website: http://www.compaq.com.
Be sure to have the following information available before you call Compaq:
Technical support registration number (if applicable)
Product serial numbers
Product model names and numbers
Applicable error messages
Operating system type and revision level
Detailed, specific questions
Compaq Website
The Compaq website has the latest information on this product as well as the latest
drivers. Access the Compaq website at: http://www.compaq.com/storage.
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.
Enterprise Virtual Array Rack User Guide xi
1
Introducing the Enterprise Storage System
Rack
The Enterprise Virtual Array is a product that consists of one or more storage systems.
A storage system consists of a pair of HSV controllers and the physical disk drives
they manage. Each storage system is formally called an Enterprise Storage System.
For the purposes of this manual, the name is frequently shorted to just "the storage
system."
This chapter discusses the Enterprise Storage System 42U racks, including major
components, configurations, and uses.
An Overview of the Enterprise Storage System Racks
The Compaq Model 9000 series rack provides the capability for mounting standard
483 mm (19 in) wide controller (Model 3220) and drive enclosures (Model 5214). The
racks and rack-mountable enclosures are typically described using the vertical "U"
measurements, where one "U" is 1.75 in (approximately 44 mm).
The Enterprise Storage System drive enclosures are 3U, or 5.25 in (approximately
133 mm).
The Enterprise Storage System controller enclosures are 1.5U, or 2.625 in
(approximately 67 mm).
The rack has four feet and four casters. Raising the adjustable feet places the rack
weight on the casters, so you can easily move the rack. Lowering the feet places the
rack weight on the feet and prevents the rack from moving. The removable front and
rear doors, and the removable side panels provide easy access to the rack interior.
Each configuration has an upper and lower controller enclosure (the controller pair),
drive enclosures, and an expansion bulkhead. Each controller pair and all the
associated drive enclosures form a single storage system.
Enterprise Virtual Array Rack User Guide 11
Introducing the Enterprise Storage System Rack
Enterprise Storage System Configurations
This section provides an overview of the standard Enterprise Storage System
configurations. For detailed configuration information, including expansion and
interconnection, refer to the Enterprise Virtual Array Initial Setup User Guide.
The system configuration depends on the following factors:
The controller pair (Model HSV110)
The number of 3U enclosures per rack
NOTE: Although the 42U Enterprise Storage System rack can accommodate a total of 14 3U
enclosures, the maximum configuration supported by Compaq is 13 enclosures (1 controller
enclosure pair, and 12-drive enclosures).
For a 6-drive enclosure configuration, there are 3U blank panels in locations 4, 5, 7, 11, 12, 13,
and 14.
For a 12-drive enclosure configuration, there is a 3U blank panel in location 14.
The minimum number of drive enclosures per single rack is 6.
The maximum number of drive enclosures per single rack is 12.
The minimum number of disk drives per single rack is 84.
The maximum number of disk drives per single rack is 168.
12 Enterprise Virtual Array Rack User Guide
Introducing the Enterprise Storage System Rack
Basic Single-Rack Configuration
The basic Enterprise Storage System configuration is composed of 1 HSV110
controller pair and 6-disk drive enclosures (a maximum of 84 disk drives) mounted in
a 42U rack (see Figure 11). This configuration includes the fiber optic cables,
cable bobbins, loop expansion bulkhead, power cables, a dual PDU assembly, and
eight power distribution modules (PDMs). There are blank panels in locations 4, 5, 6,
11, 12, 13, and 14.
3
3
1
1
2
2
CXO7619A
CXO7646A
Front View Rear View
1 Model 3220 controller pair (two HSV110 controllers) Bus Address 07
2 Disk drive enclosures 13 Bus Addresses 0103
3 Disk drive enclosures 46 Bus Addresses 0810
Figure 11: 6-drive enclosure storage system
Enterprise Virtual Array Rack User Guide 13
Introducing the Enterprise Storage System Rack
Full Single-Rack Configuration
The full Enterprise Storage System single-rack configuration is composed of 1
HSV110 controller pair and 12-drive enclosures (with a maximum of 168 disk drives)
mounted in a 42U rack (see Figure 12). This configuration includes the fiber optic
cables, cable bobbins, loop expansion bulkhead, power cables, a dual PDU assembly,
and eight PDMs. The only differences between the basic and the full configuration are
the number of drive enclosures and the maximum number of disk drives.
2
3
1
1
2
2
CXO7607A
CXO7620A
Front View Rear View
1 Model 3220 controller pair (two HSV110 controllers) Bus Address 07
2 Disk drive enclosures 16 Bus Addresses 0106
3 Disk drive enclosures 712 Bus Addresses 0813
Figure 12: 12-Drive enclosure storage system
14 Enterprise Virtual Array Rack User Guide
Introducing the Enterprise Storage System Rack
Power Distribution
AC power is distributed to the rack through a dual PDU assembly mounted at the
bottom rear of the rack. The characteristics of the full redundant rack power
configuration are as follows:
Each PDU is connected to a separate circuit-breaker-protected, 30A AC site
power source (220240 VAC 10%, 50 or 60 Hz, 5%). Figure 13 and
Figure 14 illustrate the compatible 60 Hz and 50 Hz wall receptacles.
CXO7549A
Figure 13: NEMA L6-30R receptacle, 3-wire, 30A, 60 Hz
CXO5409B
Figure 14: IEC 309 receptacle, 3-wire, 30A, 50 Hz
CAUTION: If local regulations forbid use of these receptacles, you must change the
connectors on the PDU power cords.
Enterprise Virtual Array Rack User Guide 15
Introducing the Enterprise Storage System Rack
The standard power configuration for any Enterprise Storage System rack is the
fully redundant configuration. Implementing this configuration requires:
-- Two separate circuit-breaker-protected, 30 Amp site power sources with a
compatible wall receptacle (see Figure 13 and Figure 14).
-- One dual PDU assembly.
Each PDU connects to a different wall receptacle.
-- Eight PDMs ("AC power strips") per rack.
Four PDMs mount vertically on each side of the rack.
Each set of four PDMs connects to a different PDU.
-- The drive enclosure power supplies on the left (PS 1) connect to the PDMs on
the left with a gray, 26 in (66 cm) power cord.
-- The drive enclosure power supplies on the right (PS 2) connect to the PDMs
on the right with a black, 26 in (66 cm) power cord.
-- The upper controller connects to a PDM on the left with a gray, 60 in
(152 mm) power cord.
-- The lower controller connects to a PDM on the right with a black, 26 in
(66 cm) power cord.
The configuration provides complete power redundancy and eliminates all single
points of failure for both the AC and DC power distribution.
16 Enterprise Virtual Array Rack User Guide
Introducing the Enterprise Storage System Rack
PDUs
Each Enterprise Storage System rack has either a 50 or 60 Hz, dual PDU mounted at
the bottom rear of the rack.
IMPORTANT: The major difference between the two PDU types is the cable power connector.
The standard 50 Hz PDU cable has an IEC 309, 3-wire, 30A, 50 Hz connector.
The standard 60 Hz PDU cable has a NEMA L6-30R, 3-wire, 30A, 60 Hz connector.
If these connectors are not compatible with the site power distribution, you must replace the
PDU power cord cable connector.
Each of the two PDU power cables has an AC power source specific connector. The
circuit-breaker-controlled PDU outputs are routed to a group of four AC receptacles
(see Figure 15). The voltages are then routed to PDMs, sometimes referred to as AC
power strips, mounted on the two vertical rails in the rear of the rack.
1 PDU 1
2 PDU 1 AC
1 4 receptacles
3 PDU 1 circuit breaker
4 PDU 2
5 PDU 2 AC
receptacles
2 3 6 5
6 PDU 2 circuit breaker
CXO7570A
Figure 15: Dual PDU assembly--top view
Enterprise Virtual Array Rack User Guide 17
Introducing the Enterprise Storage System Rack
PDMs
Each of the thermally-protected PDMs connects to one of the four AC receptacles on a
PDU (see Figure 16). The power modules on the right of the rack connect to the right
PDU. The power modules on the left of the rack connect to the left PDU. Individual
power cords connect the controller and drive enclosure power supplies to these
modules.
1
1 Power receptacles
2 Thermal circuit
breaker
3 IEC309 AC Power
Connector
2
3
CXO7568A
Figure 16: Rack PDM
18 Enterprise Virtual Array Rack User Guide
Introducing the Enterprise Storage System Rack
HSV Controller Enclosures
Each Enterprise Storage System has two HSV-series controllers, an upper and a lower
(see Figure 17). On the front of each controller is a removable bezel 1 and an
operator control panel (OCP) 2. With the OCP controls, you can display system
information and enter system parameters.
1 Removable bezel
2 OCP
1
2
CXO7563A
Figure 17: HSV controller enclosure--front view
To service the controller blowers or cache batteries, you must remove the bezel.
The data and power connectors located on the rear of each controller enclosure are the
interfaces to the enclosure address bus, the drive enclosures, the other controller
enclosure, and a PDM (see Figure 18). Refer to the Enterprise Virtual Array HSV
Controller User Guide for detailed information about the controller connectors.
CXO7543A
Figure 18: HSV controller enclosure--rear view
Enterprise Virtual Array Rack User Guide 19
Introducing the Enterprise Storage System Rack
Fibre Channel Disk Drive Enclosures
The Fibre Channel disk drives mount in the front of the disk drive enclosure
(see Figure 19). For ease of reference, the disk drives are usually referred to by their
physical location, the drive bay number.
1--r FC disk drives
(drive bays)
1
3
5
7
2 9
4 11
6 13
8
10
12 14
CXO7375A
Figure 19: Fibre Channel disk drive enclosure--front view
The rest of the drive enclosure elements, the power connections, and the data
connections are in the rear of the drive enclosure (see Figure 110). The Enterprise
Virtual Array Drive Enclosure User Guide describes each of these elements in detail.
1 Environmental
Monitoring Unit
2 I/O module B
3 Blower 1
4 PS 1
5 Blower 2
6 PS 2
1 2 3 4 5 6 7 7 I/O module A
CXO7484A
Figure 110: Drive enclosure--rear view
110 Enterprise Virtual Array Rack User Guide
Introducing the Enterprise Storage System Rack
Doors
The front and rear doors provide protection for the equipment. Both doors have
handles with locks.
To open a door (see Figure 111):
1. Turn the key 1 to the left to unlock the door.
2. Press the handle release button 2. The handle pops open.
3. Lift the handle up and out 3 to open the door.
3
1
2
CXO7594A
Figure 111: Locking and unlocking a door
To close a door:
1. Press the handle down and in until the release button engages the handle.
2. Turn the key to the right to lock the door.
Enterprise Virtual Array Rack User Guide 111
2
Enterprise Storage System Configurations
This chapter discusses the Compaq supported Enterprise Storage System rack
configurations in general. For detailed descriptions and discussion about the supported
configurations, see the Enterprise Virtual Array Initial Setup User Guide.
NOTE: Configuration information in this publication does not address configure-to-order (CTO),
authorized reseller-created, or customer-created configurations.
This publication does not address upgrading any configuration by adding controller or drive
enclosures.
Enterprise Virtual Array Rack User Guide 21
Enterprise Storage System Configurations
6-Drive Enclosure Configuration
The basic, or minimum, Compaq supported configuration (consists of one controller
pair and six drive enclosures see Table 21 and Figure 21). You can select the
number of disk drives per enclosure and the drive capacity.
Table 21: 6-drive Enclosure Storage System Configuration
Major Component Quantity
42U Rack with: 1
1 each, dual PDU assembly
8 each, PDM
1 each, Expansion bulkhead
1 Controller enclosure with: 2
2 each, HSV110 controller
2 each, Cache battery
2 each, Blower
7 each, 2-GB transceiver
7 each, Fiber optic cable, 2 m (6.6 ft)
1 each, Power cable
2 and 3 14-Disk Drive enclosure (Model 5214) with: 6
2 each, Blower
1 each, EMU
1 each, I/O module A
1 each, I/O module B
2 each, Power supply, 499 W
4 each, 2-GB transceiver
2 each, Fiber optic cable, 2 m (6.6 ft)
2 each, Power cable
Maximum number of Fibre Channel disk drives (Drive capacity is 84
user-specified)
22 Enterprise Virtual Array Rack User Guide
Enter prise Storage System Configurations
1 Controller enclosures
3
Bus Address 07
2 Disk Drive enclosures
13
Bus Addresses 0103
1
3 Disk Drive enclosures
46
Bus Addresses 0810
2
CXO7619A
Figure 21: 6-drive enclosure storage system layout
Enterprise Virtual Array Rack User Guide 23
Enterprise Storage System Configurations
12-Disk Drive Enclosure Configuration
This full single-rack Compaq supported configuration consists of one controller pair
and 12-drive enclosures (see Table 22 and Figure 22). You can select the number of
drives per drive enclosure and the drive capacity.
Table 22: 12-Disk Drive Enclosure Storage System Configuration
Major Components Quantity
42U Rack with: 1
1 each, dual PDU assembly
8 each, PDM
1 each, Expansion bulkhead
1 Controller enclosure with: 2
2 each, HSV110 controller
2 each, Cache battery
2 each, Blower
7 each, 2-GB transceiver
7 each, Fiber optic cable, 2 m (6.6 ft)
1 each, Power cable
2 and 3 14-Disk Drive enclosure (Model 5214) with: 12
2 each, Blower
1 each, EMU
1 each, I/O module A
1 each, I/O module B
2 each, Power supply, 499 W
4 each, 2-GB transceivers
2 each, Fiber optic cable, 2 m (6.6 ft)
2 each, Power cable
Maximum number of Fibre Channel disk drives (drive capacity is 168
user-specified)
24 Enterprise Virtual Array Rack User Guide
Enter prise Storage System Configurations
3
1 Controller enclosures
Bus Address 07
2 Drive enclosures 16
Bus Addresses 0106
1 3 Drive enclosures
712
Bus Addresses 0813
2
CXO7620A
Figure 22: 12-Drive enclosure storage system layout
Enterprise Virtual Array Rack User Guide 25
3
Enclosure Address Bus
This chapter discusses in detail, the function, operation, troubleshooting, and repair of
the enclosure address bus.
Enclosure Address Bus Overview
The enclosure address bus is composed of cables and junction boxes (JBs) that
interconnect the drive enclosures with the controller enclosures. This bus allows for
managing and reporting environmental conditions within the rack. Each EMU collects
data about the associated drive enclosure.
The Enterprise Storage System 5200 series family drive enclosure numbers are always
assigned by the enclosure address bus. Connecting a controller enclosure or a drive
enclosure to a enclosure address bus JB automatically establishes an enclosure
number, based on the distance the enclosure is from the bottom terminator in 3U (5.25
in) increments.
Single-rack enclosure numbers are in the range of 01 through 14 (see Figure 31).
Enterprise Virtual Array Rack User Guide 31
Enclosure Address Bus
1
2
1 JB to JB cable (6 each)
2 Drive enclosure cable (12 each)
3
3 Controller enclosure cable (1 each)
CXO7648A
Figure 31: Enclosure address bus
32 Enterprise Virtual Array Rack User Guide
Enclosure Address Bus
Drive Enclosures
CAUTION: The default EMU alphanumeric display is the enclosure number, which
must be in the range 01 through 14.
When an Enterprise Storage System drive enclosure displays an enclosure address of
00, there is a problem with the address bus. To isolate and eliminate this problem, refer
to Chapter 5, "Troubleshooting Rack Operation."
IMPORTANT: The enclosure number is automatically assigned. You cannot assign the
enclosure number.
Another function of the enclosure address bus is to provide out-of-band
communications within a reporting group. A reporting group is an Enterprise Storage
System controller pair and the associated Enterprise Storage System 5200 series
family disk enclosures. The Enterprise Storage System controller pair assigns a unique
decimal reporting group number to all EMUs on each FC-AL loop. For detailed
information about the reporting group number, see Enterprise Virtual Array Drive
Enclosure EMU User Guide.
Controller Enclosures
The controller enclosures are half the height (1.5U, 2.625 in) of the basic enclosure
address bus increment (3U, 5.25 in). The controller pair has a single enclosure
number. The controllers attach to the same JB connector using a special Y cable.
CAUTION: Failure of the enclosure address bus could prevent the HSV element
controller from detecting the controller or the associated drive enclosures. To isolate
and eliminate this problem, refer to Chapter 5, "Troubleshooting Rack Operation."
Enterprise Virtual Array Rack User Guide 33
Enclosure Address Bus
Enclosure Address Bus Connections
Figure 32 shows the typical configuration of a single 42U rack with 14 enclosures.
NOTE: Although the 42U Enterprise Storage System rack can accommodate a total of 14 3U
enclosures, the maximum configuration supported by Compaq is 13 enclosures (1 controller
enclosure pair, and 12-drive enclosures).
For a 6-drive enclosure configuration, there are 3U blank panels in locations 4, 5, 7, 11, 12, 13,
and 14.
For a 12-drive enclosure configuration, there is a 3U blank panel in location 14.
11
7
Enclosure Address Bus JBs
6
1 JB for enclosures 1 and 2
2 JB for enclosures 3 and 4
3 JB for enclosures 5 and 6
4 JB for enclosures 7 and 8
5
5 JB for enclosures 9 and 10
10
6 JB for enclosures 11 and 12
7 JB for enclosures 13 and 14
4 Enclosure Address Bus
Components
8 Bottom terminator
9
9 JB-to-Drive enclosure cable 15 in
3
(381 mm), 1 of 12 cables
or
JB-to-Controller enclosure cable
(381 mm)
2
- JB-to-JB cable 8.25 in (210 mm), 1 of
6 cables
q Top terminator
1
8
CXO7341A
Figure 32: Enclosure address bus components and connections
34 Enterprise Virtual Array Rack User Guide
Enclosure Address Bus
Based on the cable bus installation shown in Figure 32, the enclosures in a
single-rack installation are numbered as shown in Figure 33.
IMPORTANT: The enclosure address bus does not differentiate between drive enclosures and
controller enclosures.
The physical location of the enclosure address bus JB connector determines the address, not
the enclosure type.
1 through r
Enclosures 1 through 14
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CXO7649A
Figure 33: Rack enclosure numbering
Enterprise Virtual Array Rack User Guide 35
4
Power Distribution
This chapter discusses in detail, the Enterprise Storage System rack power
distribution, including AC power sources, PDU assemblies, PDMs, and the internal
and external power cables.
An Overview of Rack AC Power Distribution
The power distribution in an Enterprise Storage System rack is the same for all
variants. The site AC input voltage is routed to the dual PDU assembly mounted in the
rack lower rear. Each PDU distributes AC to a maximum of four PDMs mounted on
the left and right vertical rails (see Figure 41).
PDMs 1 through 4 connect to receptacles A through D on PDU 1. Grey power
cords connect these PDMs to the number 1 drive enclosure power supplies and to
the upper controller enclosure.
PDMs 5 through 8 connect to receptacles A through D on PDU 2. Black power
cords connect these PDMs to the number 2 drive enclosure power supplies and to
the lower controller enclosure.
Enterprise Virtual Array Rack User Guide 41
Power Distribution
IMPORTANT: The locations of the PDUs and the PDMs are the same in all Enterprise Storage
System racks.
6
1
1 PDM 4
2 PDM 3
7
2
3 PDM 2
4 PDM 1
5 PDU 1
6 PDM 8
7 PDM 7
8
3
8 PDM 6
9 PDM 5
- PDU 2
9
4
10
5
CXO7650A
Figure 41: Rack AC power distribution
42 Enterprise Virtual Array Rack User Guide
Power Distribution
PDU 1
PDU 1 connects to AC power distribution source 1. A PDU 1 failure:
Disables the power distribution circuit
Removes power from PDMs 1, 2, 3, and 4
Disables PS 1 in the drive enclosures
Disables the upper controller power supply
PDU 2
PDU 2 connects to AC power distribution source 2. A PDU 2 failure:
Disables the power distribution circuit
Removes power from PDMs 5, 6, 7, and 8
Disables PS 2 in the drive enclosures
Disables the lower controller power supply
Enterprise Virtual Array Rack User Guide 43
Power Distribution
PDUs
The dual PDU assembly (see Figure 42) mounts in the lower rear of the rack. This
assembly contains two PDUs: PDU 1 1 and PDU 2 7. Each PDU has a 250 VAC,
30A circuit breaker(6 and w) and four IEC 320-C13 AC output power receptacles
(2 through 5, and 8 through q). The circuit breakers and AC receptacles are
accessible when the PDU assembly is in the upright position.
1 PDU 1
2 PDU 1 receptacle A
3 PDU 1 receptacle B
4 PDU 1 receptacle C
1 7
5 PDU 1 receptacle D
6 PDU 1 circuit breaker
7 PDU 2
8 PDU 2 receptacle A
6 12 8 9 10 11
2 3 4 5
9 PDU 2 receptacle B
CXO7571A
- PDU 2 receptacle C
q PDU 2 receptacle D
w PDU 2 circuit breaker
Figure 42: Dual PDU assembly major components
During normal operation, the hinged PDU assembly is in the upright position and the
rear door is closed.
To service either the PDU or the lower two drive enclosures (bus addresses 01 and 02),
you must open the rear door and lower the PDU (see Figure 43).
To lower the unit:
1. Open the rear door.
2. Loosen the flush-mounted captive screws 1 on the dual PDU assembly
(see Figure 43).
44 Enterprise Virtual Array Rack User Guide
Power Distribution
3. Grasp the hinged plate assembly 2 and pull the PDU assembly to the rear.
2
1 1
1 Flush-mounted
captive screw
2 Hinged plate
assembly
3 Power cable entry
way
3
CXO7569A
Figure 43: Lowering a dual PDU assembly
With the PDU assembly lowered, you have full access to drive enclosures 1 and 2.
To return the PDU assembly to the upright position:
1. Grasp the hinged plate assembly 2 and raise the PDU assembly to the upright
position.
2. Tighten the flush-mounted captive screws 1 to secure the assembly to the rack.
3. Close the rear door.
Enterprise Virtual Array Rack User Guide 45
Power Distribution
PDMs
There are eight PDMs mounted in the rear of each rack:
Four mounted on the left vertical rail connect to PDU 1.
Four mounted on the right vertical rail connected to PDU 2.
Each PDM has six AC receptacles and a thermal circuit breaker. The PDMs distribute
the AC power from the PDUs to the enclosures.
There are two power sources for each controller pair and drive enclosure. Even when a
single PDU fails, the system will remain operational.
CAUTION: The AC power distribution within a rack ensures a balanced load to each
PDU and reduces the possibility of an overload condition. Changing the cabling to or
from a PDM could cause an overload condition. Compaq supports only the AC power
distributions defined in this publication.
46 Enterprise Virtual Array Rack User Guide
5
Troubleshooting Rack Operation
This chapter discusses in detail, how to identify and correct Enterprise Storage System
rack level problems.
An Overview of Troubleshooting
Troubleshooting an Enterprise Storage System involves using the procedures in this
chapter and those described in the following documents.
The Enterprise Virtual Array HSV Controller User Guide describes how the
transceiver LEDs, OCP LEDs and the LCD display controller-related conditions.
This guide also describes a recommended corrective action for each condition.
The Enterprise Virtual Array Drive Enclosure EMU User Guide describes how
the EMU alphanumeric display and the EMU LEDs provide a detailed description
of element conditions (drive, EMU, I/O modules, power supplies, and blowers).
This guide also describes a recommended corrective action for each condition.
The Enterprise Virtual Array Drive Enclosure User Guide describes how the drive
enclosure elements (drives, EMU, I/O modules, power supplies, and blowers) use
the element LEDs to display conditions.
Enterprise Storage System rack problems are identified and reported using one or
more of the following methods.
HSV Element Manager Graphical User Interface (GUI) display
PDU circuit breakers state (On or Off)
PDM thermal circuit breakers state (On or Off)
Enterprise Virtual Array Rack User Guide 51
Troubleshooting Rack Operation
Troubleshooting a Rack
The only rack electronic components subject to failure are the AC distribution circuits,
including the PDUs and the PDMs. This includes the site power distribution circuits
and the power cables. When a power loss occurs, the failure may or may not be
reported as described in Chapter 4, "Power Distribution."
If an overcurrent condition occurs, the associated circuit breaker will reset thereby
removing power from the associated enclosures. An EMU can report the loss of AC
input to a power supply.
However, the simultaneous loss of the AC input to both PDUs is not reported as a
power problem. The HSV element manager GUI displays an unmapped status for all
the enclosures. Therefore, identifying a rack power problem requires you to check the
drive enclosures and the controller enclosures. Once you identify the problem, you can
isolate the problem to the AC distribution, a PDU, or a PDM.
IMPORTANT: The loss of an AC input to one of the rack PDUs has the same symptom as the
loss of the PDU or the failure of all the PDMs attached to a PDU.
If either a PDU or PDM fail, the primary indication will be the loss of power to one or
more of the following:
The upper controller enclosure
The lower controller enclosure
Some of the drive enclosure number 1 power supplies
Some of the drive enclosure number 2 power supplies
Troubleshooting the Rack AC Power Distribution
The basic types of rack AC power distribution problems involve one or more of the
following conditions:
Loss of AC input to a PDU
Failure of a PDU
Failure of a PDU receptacle
Failure of a PDM
Failure of a PDM receptacle
52 Enterprise Virtual Array Rack User Guide
Troubleshooting Rack Operation
Troubleshooting PDU Failures
The loss of an AC input, an overcurrent condition, or the failure of a PDU receptacle
can disrupt AC power distribution within the rack.
IMPORTANT: Any power distribution problem can involve either an improperly connected
power cord, or a circuit breaker that resets due to a momentary overload.
Therefore, Compaq recommends that before beginning any detailed troubleshooting procedure,
you check that all power cords are connected correctly and that all the circuit breakers are set to
the On state.
Troubleshooting PDU AC Inputs
The loss of a PDU AC input disables all the associated PDMs and enclosures. For this
condition, each EMU generates an error message indicating there is no AC input.
However, the system will remain operational as long as one PDU has an AC input and
there are no other problems associated with that PDU and the associated power
distribution circuits.
The loss of the AC input to both PDUs completely disables the storage system and the
EMUs could not transmit an error message through the controllers to the HSV
Element Manager GUI. The HSV element manager GUI display will report the
affected enclosures as unmapped.
The recommended corrective actions for these conditions are:
1. Verify the status of the AC power distribution circuit breaker.
a. If circuit breaker is in the open (Off) state, there was an overload on the
circuit. Set the circuit breaker to On.
If the circuit breaker remains On, the problem no longer exists.
If the circuit breaker resets, check the PDU outputs for an overload condition
(see "Correcting an Overload Condition").
b. If the circuit breaker is in the On position and there is no power to the PDU,
go to step 2.
2. Ask site maintenance personnel to verify the AC power distribution circuitry.
Enterprise Virtual Array Rack User Guide 53
Troubleshooting Rack Operation
Correcting an Overload Condition
An overload, even a momentary one, on any PDU output circuit can overload the PDU
and cause the circuit breaker to reset. Complete the following procedure when the
PDU circuit breaker is in the Off position.
1. Set the circuit breaker to the On position.
If the circuit breaker remains in the On position, there was a momentary overload
and no further action is required.
2. If the circuit breaker immediately resets the overload condition still exists. To
isolate the problem, disconnect the AC power cords one at a time and label them
so you know to which AC receptacle they connect.
3. With no power cords connected to the AC output receptacles, set the circuit
breaker to the On position. If the circuit breaker immediately resets, there is an
internal PDU problem that requires PDU replacement by a Compaq Authorized
Service Provider.
4. If the circuit breaker remains in the On position, set the circuit breaker to the Off
position, and connect the AC power cord to receptacle A. Set the circuit breaker to
the On position.
If the circuit breaker resets there is a problem with the receptacle A power
distribution circuit (PDM or enclosures).
If the circuit breaker remains in the On position, there is no problem in the
receptacle A power distribution circuit.
5. Set the circuit breaker to the Off position, and connect the AC power cord to
receptacle B. Set the circuit breaker to the On position.
If the circuit breaker resets, there is a problem with the receptacle B power
distribution circuit (PDM or enclosures).
If the circuit breaker remains in the On position, there are no problems in the
receptacle A or B power distribution circuits.
6. Set the circuit breaker to the Off position, and connect the AC power cord to
receptacle C. Set the circuit breaker to the On position.
If the circuit breaker resets, there is a problem with the receptacle C power
distribution circuit (PDM or enclosures).
If the circuit breaker remains in the On position, there is no problem in the
receptacle A, B, or C power distribution circuits.
54 Enterprise Virtual Array Rack User Guide
Troubleshooting Rack Operation
If the circuit breaker remains in the On position, set the circuit breaker to the
Off position, and connect the AC power cord to receptacle D. Set the circuit
breaker to the On position.
If the circuit breaker resets, there is a problem with the receptacle D power
distribution circuit (PDM or enclosures).
7. If the circuit breaker remains in the On position, there is no problem in the
receptacle A, B, C, or D power distribution circuit.
8. If you are unable to correct the problem, contact your Compaq Authorized Service
Provider for support.
Troubleshooting PDM Failures
The failure of a PDM can be caused by a PDU failure (see "Troubleshooting PDU
Failures" on page 53) or by an overload on one or more PDM circuits.
IMPORTANT: Any power distribution problem can involve either an improperly connected
power cord or a circuit breaker that resets due to a momentary overload.
Therefore, Compaq recommends that before beginning any detailed troubleshooting procedure,
you check that all power cords are connected correctly and that all the circuit breakers are set to
the On position.
To isolate and eliminate a power distribution problem involving a PDM, complete the
following procedure.
1. Observe the drive enclosure power supply status LEDs. If a LED is Off, there is a
problem.
2. Locate the associated PDM, and verify the circuit breaker is On.
3. Ensure that all power cords are properly connected.
4. Ensure that the PDM circuit breaker is On.
5. If you are unable to correct the problem, contact your Compaq Authorized Service
Provider for support.
Enterprise Virtual Array Rack User Guide 55
Troubleshooting Rack Operation
Troubleshooting the Enclosure Address Bus
The enclosure address bus circuitry is not critical to Enterprise Storage System
operation. A component failure does not cause any problem in storing or retrieving
data. The major symptom of an enclosure address bus failure is the inability to map to
either a controller or a drive enclosure location in the rack.
If this occurs, the HSV Element Manager GUI identifies the affected enclosures as
unmappable hardware. The controllers and disk drives continue to function and data
can still be written to or read from the drives.
The failure of any of the following enclosure address bus components could affect
enclosure address bus operation:
The lower enclosure address bus terminator
Any of the enclosure address bus JBs, connectors, or cables between the JBs
Any of the cables connecting the drive or controller enclosures to a JB
The primary indicators of a enclosure address bus failure are:
The EMU displays an enclosure address of 00
The HSV element manager identifies one or more enclosures, either drive or
controller, as unmappable hardware
Terminator Failures
The failure of the lower terminator is extremely unlikely. However, failure of the lower
terminator effectively removes the enclosures from the system. The symptoms of such
a failure are:
The HSV Element Manager GUI identifies all the enclosures in the rack as
unmappable hardware.
Each drive enclosure EMU displays an enclosure number of 00.
Contact your Compaq Authorized Service Provider and report the problem.
56 Enterprise Virtual Array Rack User Guide
Troubleshooting Rack Operation
JB Failures
The JB-related failures that could disable enclosure numbering for multiple enclosures
include:
Failure of either input (bottom) or output (top) JB connector
Failure of either cable between JBs
If either of these conditions occur:
All enclosures mounted below the affected JB display a valid enclosure number
(for example, 01 through 06, or 08 through 13). The GUI identifies these
enclosures as mappable.
All the enclosures mounted above, or connected to the affected JB, display the
enclosure number 00. The GUI will identify these enclosures as unmappable
hardware.
If there is a cable problem, use the following procedure.
1. Ensure that the cable connecting the affected JB to the JB directly below is
correctly installed. Disconnect and remove the cable.
2. Connect the cable to both JBs and observe the drive enclosure EMU displays for
valid enclosure numbers. If the numbers remain 00, remove this cable.
3. Remove the cable connecting two functioning JBs, and install the cable removed
in step 2. Observe the drive enclosure EMU displays for valid enclosure numbers.
If the numbers are valid, the cable is not the problem. There is either a JB or JB
connector problem. Install the second cable.
4. If you are unable to correct the problem, contact your Compaq Authorized Service
Provider for support.
Single Enclosure Address Bus Failures
The failure of a JB connector or the cable connecting an enclosure to the JB could
cause an enclosure address bus failure for a single enclosure. If this happens, the
following symptoms occur:
One drive enclosure displays 00 as the enclosure number.
The GUI identifies one enclosure as unmappable hardware.
Enterprise Virtual Array Rack User Guide 57
Troubleshooting Rack Operation
Drive Enclosure Failure
Complete the following procedure to correct a drive enclosure problem.
1. Identify the enclosure affected either from the HSV element manager GUI display
or an EMU display of 00.
2. Disconnect the cable between the JB and the enclosure. Connect and fully seat the
cable.
3. Observe either the HSV element manager GUI display or the EMU display for a
valid enclosure number display (01 through 14).
4. If the problem still exists, you can exchange the affected enclosure cable with the
cable for a properly functioning enclosure.
5. Observe either the HSV element manager GUI display or the EMU display for a
valid enclosure number display (01 through 14).
6. If you are unable to correct the problem, contact your Compaq Authorized Service
Provider for support.
Controller Enclosure Failure
Complete the following procedure to correct a controller enclosure problem.
1. Identify the enclosure affected from the HSV element manager GUI display.
2. Disconnect the cable between the JB and the enclosure. Connect and fully seat the
cable.
3. Observe the HSV element manager GUI display for a controller enclosure number
display.
4. Replace the controller "Y" cable to isolate the problem. Observe the HSV element
manager GUI display for a mappable controller enclosure number 07 display.
5. If you are unable to correct the problem, contact your Compaq Authorized Service
Provider for support.
58 Enterprise Virtual Array Rack User Guide
Troubleshooting Rack Operation
Table 51 lists some of the possible symptoms and possible causes of enclosure
address bus failures. In most cases, the only available corrective action is to replace
the terminator, the JB, or a cable. In this table:
The "JB No" column identifies that JB for each enclosure.
The "EMU" column defines the EMU enclosure number display.
Table 51: Possible Enclosure Address Bus Failures
LEGEND:
00--Invalid Drive Enclosure Number
01--Valid Drive Enclosure Number
JB
Symptoms and Possible Causes No EMU
Symptoms
7
00
Address of ALL drive enclosures is 00.
00
HSV element manager reports all drive and controller 6
00
enclosures as unmappable.
00
Possible Causes
5
00
Defective Bottom Terminator.
00
Failure of JB 1. 4
00
3
00
00
2
00
00
1
00
Enterprise Virtual Array Rack User Guide 59
Troubleshooting Rack Operation
Table 51: Possible Enclosure Address Bus Failures (Continued)
LEGEND:
00--Invalid Drive Enclosure Number
01--Valid Drive Enclosure Number
JB
Symptoms and Possible Causes No EMU
Symptoms
7
13
Address of ONE drive enclosure is 00.
12
HSV element manager reports the same drive enclosure as 6
11
unmappable.
10
Possible Causes 5
00
Defective JB 5 to drive enclosure 09 cable.
08
Defective lower connector on JB 5. 4
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