HSG60 Array Controller
ACS Version 8.6
Maintenance and Service Guide
First Edition (June 2001)
Part Number: EK-G60MS-SA. A01
Compaq Computer Corporation
2001 Compaq Computer Corporation.
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Printed in the U.S.A.
HSG60 Array Controller ACS Version 8.6
Maintenance and Service Guide
First Edition (June 2001)
Part Number: EK-G60MS-SA. A01
Contents
About This Guide
Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Symbols in Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Symbols on Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Rack Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Compaq Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Compaq Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Compaq Authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Chapter 1
General Description
Subsystem Components--Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
HSG60 Subsystem in a Model 2100 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
HSG60 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cache Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connectors, Switches, and LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
HSG60 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
OCP Switches and LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
GLM Connectors and Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
180 Watt Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Model 2100 Enclosure EMU Switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Model 2100 Enclosure ECB LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Model 2100 Enclosure Fan LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
iv HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Chapter 2
Common Replacement Information and Procedures
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Field Replacement Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrostatic Discharge Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Very-High-Density Cable Interface (VHDCI) Cable Precautions. . . . . . . . . . . . . . . . . . . . . 23
Component Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Maintenance Port Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Establishing a Local Connection to the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Fiber Optic Cable Cleaning Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Cleaning a GLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Replacing a GLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Removing a GLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Installing a GLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Replacing a Fiber Optic Cable, Switch, or Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Removing a Fiber Optic Cable, Switch, or Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Installing a Fiber Optic Cable, Switch, or Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Replacing DIMMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Removing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Installing DIMMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Replacing a Failed Storageset Member. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Removing a Failed RAIDset or Mirrorset Member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Installing a New RAIDset or Mirrorset Member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Chapter 3
Replacement Procedures for
Model 2100 Enclosure Elements
Shutting Down the Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Restarting the Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Replacement Procedures for Controller and Cache Modules in a Single-Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Replacing the Controller and Cache Module in a Single-Controller Configuration . . . . . . . 35
Replacing the Controller in a Single-Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . 36
Removing the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Installing the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Replacing the Cache Module in a Single-Controller Configuration . . . . . . . . . . . . . . . . . . . 39
Removing the Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Installing the Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Replacement Procedures for Controller and Cache Modules in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
v
Replacing a Controller and Cache Module in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Removing a Controller and Cache Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Installing a Controller and Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
Replacing a Controller in a Dual-Redundant Controller Configuration . . . . . . . . . . . . . . 319
Removing a Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Installing a Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Replacing a Cache Module in a Dual-Redundant Controller Configuration . . . . . . . . . . . 322
Removing a Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Installing a Cache Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Replacing an ECB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Replacing an I/O Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Chapter 4
Upgrade and Downgrade Procedures for ACS Version 8.6
Upgrading Controller Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Upgrading the Software Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Upgrading to ACS Versions 8.6F, 8.6G, 8.6L, and 8.6S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Rolling Upgrade Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Shutdown Upgrade Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Upgrading to ACS Version 8.6P Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Rolling Upgrade Procedure for 8.6P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412
Shutdown Upgrade Procedure for 8.6P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
Downgrading Controller Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
Running the Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
Appendix A
Array Controller Specifications
Physical and Electrical Specifications for the HSG60 Array Controller and Cache Modules . . A1
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Glossary
Index
vii
Figures
Figure 11. HSG60 subsystem in a Model 2100 enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 12. HSG60 array controller--GLM, cabling, and program card. . . . . . . . . . . . . . . . . . . . 14
Figure 13. Cache module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 14. HSG60 array controller front panel connectors, switches, and LEDs . . . . . . . . . . . . . 17
Figure 15. Array controller OCP switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 16. GLM connectors and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 17. 180 watt power supply LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Figure 18. Model 2100 enclosure EMU switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 19. Model 2100 enclosure ECB LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Figure 110. Model 2100 enclosure fan LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Figure 21. PC/terminal to maintenance port connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 22. Ferrule on a fiber optic cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 23. Cleaning procedure for GLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 24. Location of GLMs inside a controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 25. Controller reset button and first three LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Figure 26. Using thin needle-nose pliers to disconnect a fiber optic cable. . . . . . . . . . . . . . . . . 211
Figure 27. Cache module DIMM locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Figure 28. DIMM components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Figure 31. Controller reset button and first three LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 32. Single-controller configuration (Model 2200 example) . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 33. Using thin needle-nose pliers to disconnect a fiber optic cable. . . . . . . . . . . . . . . . . . 35
Figure 34. Location of array controller reset and port #6 buttons on the OCP . . . . . . . . . . . . . . . 38
Figure 35. DIMM components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Figure 36. Dual-redundant controller configuration in a Model 2100 enclosure
(Model 2200 example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Figure 37. ECB and cache module locations in the Model 2100 enclosure . . . . . . . . . . . . . . . . 327
Figure 38. Removing an ECB that supports cache module B in the Model 2100 enclosure . . . 327
Figure 39. ECB status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Figure 310. I/O module locations in a Model 2100 enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
viii HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Figure 311. I/O module bay to SCSI bus number correlation (all locations) . . . . . . . . . . . . . . . . . 330
Figure 41. Program (PCMCIA) card installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 42. Controller reset button and first three LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 43. Controller reset button and first three LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
ix
Tables
Table 11 HSG60 Subsystem in a Model 2100 Enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 12 HSG60 Fibre Channel Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 13 Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 14 HSG60 Array Controller Front Panel Connectors, Switches, and LEDs . . . . . . . . . . 18
Table 15 Array Controller OCP Switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 16 GLM Connectors and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 17 180 Watt Power Supply LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Table 18 Model 2100 Enclosure EMU Switches and LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Table 19 Model 2100 Enclosure ECB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Table 110 Model 2100 Enclosure Fan LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Table 21 Cache Module Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Table A1 Controller and Cache Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Table A2 Operating Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Table A3 Nonoperating Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
About This Guide
This guide is designed to be used as step-by-step instructions for installation and as a
reference for operation, troubleshooting, and future upgrades.
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys Keys appear in boldface. A plus sign (+) between two
keys indicates that they should be pressed
simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase
FILENAMES File names appear in uppercase italics.
Menu Options, These elements appear in initial capital letters.
Command Names,
Dialog Box Names
C OMMANDS, These elements appear in upper case.
DIRECTORY NAMES,
NOTE: UNIX commands are case sensitive and will not
and DRIVE NAMES appear in uppercase.
Type When you are instructed to type information, type the
information without pressing the Enter key.
xii HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Enter When you are instructed to enter information, type the
information and then press the Enter key.
"this controller" The controller serving the current CLI session through a
local or remote terminal.
"other controller" The controller in a dual-redundant pair that is connected
to the controller serving the current CLI session.
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.
About This Guide xiii
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.
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.
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 manual material handling.
xiv HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Rack Stability
WARNING: To reduce the risk of personal injury or damage to the equipment, be sure
that:
s The leveling jacks are extended to the floor.
s The full weight of the rack rests on the leveling jacks.
s The stabilizing feet are attached to the rack if it is a single rack installations.
s The racks are coupled together in multiple rack installations.
s A rack may become unstable if more than one component is extended for any
reason. Extend only one component at a time.
About This Guide xv
Getting Help
If you have a problem and have exhausted the information in this guide, you can get
further information and other help in the following locations.
Compaq Technical Support
You are entitled to free hardware technical telephone support for your product for as long
you own the product. A technical support specialist will help you diagnose the problem or
guide you to the next step in the warranty process.
In North America, call the Compaq Technical Phone Support Center 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 the nearest Compaq Technical Support Phone Center.
Telephone numbers for worldwide Technical Support Centers are listed on the Compaq
website. Access the Compaq website by logging on to the Internet at
http://www.compaq.com.
Be sure to have the following information available before you call Compaq:
s Technical support registration number (if applicable)
s Product serial numbers
s Product model names and numbers
s Applicable error messages
s Add-on boards or hardware
s Third-party hardware or software
s Operating system type and revision level
s Detailed, specific questions
Compaq Website
The Compaq website has the latest information on this product as well as the latest drivers.
You can access the Compaq website by logging on to the Internet at
http://www.compaq.com/storage.
xvi HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Compaq Authorized Reseller
For the name of your nearest Compaq authorized reseller:
s In the United States, call 1-800-345-1518.
s In Canada, call 1-800-263-5868.
s Elsew here, see the Compaq website for locations and telephone numbers.
1
Chapter
General Description
This chapter illustrates and describes, in general terms, the Model 2100 enclosure
subsystems and their major components, plus connectors, switches, and LEDs.
Refer to the Fibre Channel switch documentation that came with the switch kit for
specifics about how the switch operates. Refer to the KGPSA PCI-to-Fibre Channel Host
Adapter User Guide for information about the adapter that connects the subsystem to the
host.
Subsystem Components--Exploded Views
This section illustrates the various subsystem enclosures, components, and specific
attributes of each component. Spare part numbers are included as a convenience, under
two part numbering systems (the 63 system and the 252 system).
12 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
HSG60 Subsystem in a Model 2100 Enclosure
Figure 11 and Table 11 identify an HSG60 subsystem in a Model 2100 enclosure.
1
2
11
4 2
3
5 15
3
3
10
9
15
12
6
8
7 6
8
7 13
15
15
14
CXO7428A
Figure 11. HSG60 subsystem in a Model 2100 enclosure
General Description 1 3
Table 11 HSG60 Subsystem in a Model 2100 Enclosure
Item Description 6 3 2 5 2
Part Number Part Number
1 Model 2100 rack-mountable enclosure 126314001 7033725S1
2 ECB without a battery pack 126312001 7033547S1
ECB battery pack 147514001 1244670S4
3 Blank bezel 173406001 746046001
4 Fan 126310001 7033538S1
5 EMU 126315001 7040081S1
6 180 W Power supply 400288001 FCBA35XHH
7 HSG60 controller 173406 001 7033259 S2
8 Cache module (upgraded) 400295002 7033256S2
9 I/O modules 126313001 7033724S1
- Blank bezel 173405-001 74-60460-01
q Fibre Channel hub, 7-port 234454001 FE0906101
w Fibre Channel hub, 12-port 340858001 305054901
e Fibre Channel switch, 8-port 127660001 3056042S1
167649001 3056132S1
r Fibre Channel switch, 16-port 127660002 3056042S2
167650001 3056132S2
t GBIC, short wave 234458001 FE0908601
GBIC, long wave 340420001 FD8950401
14 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
HSG60 Array Controller
Figure 12 and Table 12 identify an HSG60 array controller, the location of the program
card, and how to connect a fiber optic cable and maintenance port cable. This setup applies
to the Model 2100 enclosure.
1
2
6
5
4
3
2
1
4 3
CXO6691B
Figure 12. HSG60 array controller--GLM, cabling, and program card
General Description 1 5
Table 12 HSG60 Fibre Channel Array Controller
Item Description 6 3 2 5 2
Part Number Part Number
1 Gigabit link module (GLM) 402603001 70GLMS102
2 Program card:
170569001 BGRHQEBBA
- ACS version 8.6F
BGRFNUBBA
- ACS version 8.6G
BGRMC5ABA
- ACS version 8.6L
- ACS version 8.6P 170570001 BGRHQDBBA
- ACS version 8.6S 170571001 BGRKEGABA
3 Fiber optic cable, 2 meter 242796 001 17048200 3
Fiber optic cable, 5 meter 242796 002 170482005
Fiber optic cable, 15 meter 242796 003 170482013
Fiber optic cable, 30 meter 401937 001 170482008
Fiber optic cable, 50 meter 401938 001 170482009
4 170407404
173408001
Maintenance port cable to a PC
Optional adapters, 9-pin D-sub to 25-pin D-sub (not
shown):
124523801
173407001
- Male to female (null modem)
- Male to male (null modem) 173407002 124523802
173407003 124523803
- Male to male (modem)
Cache Module
Figure 13 and Table 13 identify the cache module and the location of the dual inline
memory module (DIMM). The bezel of the upgraded cache module is labeled "HSx80
CACHE."
CAUTION: An older version of the StorageWorks cache module (70-33256-01) cannot
be used in the Model 2100 enclosure. These enclosures require the updated version
(70-33256-11, spare part number 70-33256-S1) to function properly. Failure to use
the updated version causes the controller to crash upon starting.
16 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
1
~
2
CXO6570B
Figure 13. Cache module
Table 13 Cache Module
Item Description 6 3 2 5 2
Part Number Part Number
1 DIMM, 32 MB 400296001 70DIMS101
DIMM, 128 MB 400297001 70DIMS102
2 Cabling is not applicable to HSG60 subsystems
General Description 1 7
Connectors, Switches, and LEDs
This section provides connector, switch, and LED information for the following
components:
s HSG60 array controller
s 180 watt power supply
s Model 2100 enclosure EMU, external cache batteries (ECBs), and fans
NOTE: For detailed information pertaining to the power supply, EMU, ECBs, fans, and I/O
module, refer to the specific enclosure user guide.
HSG60 Array Controller
This section describes the array controller front panel, operator control panel (OCP)
switches and LEDs, and gigabit link module (GLM) components.
Front Panel
Figure 14 and Table 14 identify various physical parts of the HSG60 array controller.
1
2 3
6
5
4
3
2
1
4
5
6
CXO6582B
Figure 14. HSG60 array controller front panel connectors, switches, and LEDs
18 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Table 14 HSG60 Array Controller Front Panel Connectors,
Switches, and LEDs
Item Description
1 GLM connection ports
2 Program card slot
3 Program card ejection button
4 Maintenance port
5 Operator control panel (OCP)
6 Controller reset button
OCP Switches and LEDs
Figure 15 and Table 15 identify the OCP switches and LEDs on the array controller.
1 2
1 2 3 4 5 6
CXO6216C
Figure 15. Array controller OCP switches and LEDs
Table 15 Array Controller OCP Switches and LEDs
Item Description
1 Controller reset button
2 Port buttons/LEDs (1 through 6)
General Description 1 9
GLM Connectors and Components
Figure 16 and Table 16 identify various GLM connectors and components on the array
controller.
1
3
2
4
5
6
7
Figure 16. GLM connectors and components
Table 16 GLM Connectors and Components
Item Description
1 Access door
2 Port 1 GLM
3 Release lever
4 Locking tab
5 Guide holes
6 GLM connector
7 Port 2 GLM
110 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
180 Watt Power Supply LEDs
Figure 17 and Table 17 identify power supply LEDs for the Model 2100 enclosure.
NOTE: Refer to the specific enclosure user guide for detailed information.
1
2
Figure 17. 180 watt power supply LEDs
Table 17 180 Watt Power Supply LEDs
Item Description
1 Shelf (enclosure) status LED
2 Power supply status LED
General Description 1 11
Model 2100 Enclosure EMU Switches and LEDs
Figure 18 and Table 18 identify EMU switches and LEDs for a Model 2100 enclosure.
NOTE: Refer to the Model 2100 enclosure user guide for detailed information.
1
2
3
4
5
6
CXO6355A
Figure 18. Model 2100 enclosure EMU switches and LEDs
Table 18 Model 2100 Enclosure EMU Switches and LEDs
Item Description
1 EMU status LED
2 Power status LED
3 Enclosure fault LED
4 Alphanumeric display
5 Increment switch/LED
6 Group switch/LED
112 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Model 2100 Enclosure ECB LEDs
Figure 19 and Table 19 identify ECB LEDs for a Model 2100 enclosure.
NOTE: Refer to the Model 2100 enclosure user guide for detailed information.
1
2
3
CXO6358A
Figure 19. Model 2100 enclosure ECB LEDs
Table 19 Model 2100 Enclosure ECB LEDs
Item Description
1 ECB charged LED
2 ECB charging LED
3 ECB fault LED
General Description 1 13
Model 2100 Enclosure Fan LEDs
Figure 110 and Table 110 identify fan LEDs for a Model 2100 enclosure.
NOTE: Refer to the Model 2100 enclosure user guide for detailed information.
1
2
3
CXO6358A
Figure 110. Model 2100 enclosure fan LEDs
Table 110 Model 2100 Enclosure Fan LEDs
Location Description
1 Power status LED
2 Not used
3 Fan fault LED
2
Chapter
Common Replacement Information and Procedures
This chapter contains the following replacement information and procedures:
s Required Tools
s Field Replacement Strategy
s Precautions
s Establishing a Local Connection to the Controller
s Fiber Optic Cable Cleaning Instructions
s Cleaning a GLM
s Replacing a GLM
s Replacing a Fiber Optic Cable, Switch, or Hub
s Replacing DIMMs
s Replacing a Failed Storageset Member
Required Tools
The following tools are needed to service a controller, cache module, GLM, and I/O
module:
s a flathead screwdriver for loosening and tightening the I/O module retaining screws
s a small phillips screwdriver for loosening and tightening the GLM access door screws
s a pair of thin needle-nose pliers to remove fiber optic cables from the controller
s an antistatic wrist strap
s an antistatic mat on which to place modules during servicing
22 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Field Replacement Strategy
Compaq authorized service providers will troubleshoot HSG60 subsystem problems to the
field replaceable unit (FRU) and replace the defective unit. Replacement procedures for
Subsystem FRUs addressed in this guide include the array controller, cache module,
DIMMs, ECB, and GLM.
Precautions
To prevent accidental damage to subsystem components, always follow the precautions in
this section when carrying out the procedures in this guide.
Electrostatic Discharge Precautions
Static electricity collects on all non-conducting material, such as paper, cloth, and plastic.
An electrostatic discharge (ESD) can easily damage a controller or other subsystem
component even though the discharge might not be seen or felt. ESD is a common
problem and might cause data loss, system down time, and other problems. The most
common source of static electricity is the movement of people in contact with carpets and
clothing. Low humidity increases the amount of static electricity.
Observe the following precautions whenever servicing a subsystem or subsystem
component:
s Always use an ESD wrist strap when servicing the controller or other components in
the subsystem. Make sure that the strap contacts bare skin, fits snugly, and that the
strap grounding lead is attached to a bus with a verified earth ground.
s Before touching any circuit board or component, always touch a verified earth ground
to discharge any static electricity that might be present in clothing.
s Always keep circuit boards and components away from non-conducting material.
s Always keep clothing away from circuit boards and components.
s Always use antistatic bags and grounding mats for storing circuit boards or
components during replacement procedures.
s Always keep the ESD cover over the program card when the card is in the controller. If
a card is removed, put the card in the original carrying case.
s Never touch the contacts or twist or bend the program card.
s Never touch the connector pins of a cable when one end is attached to a component or
host.
Common Replacement Information and Procedures 2 3
Very-High-Density Cable Interface (VHDCI) Cable
Precautions
All cables that connect to the controller, cache module and ECB use VHDCI connectors.
VHDCI connectors have extraordinarily small mating surfaces that can be damaged by
dust and cable movement. Always take the following VHDCI precautions when servicing
any subsystem component.
s Clean the mating surfaces with a blast of compressed air or freon only.
s Mate the connectors by hand, then tighten the retaining screws to 1.5 in/lb (0.17 N-m),
approximately 1/4 of an additional turn after the connectors mate.
s Test the cable assembly by gently pulling on the cable. There should be no visible
separation between the cable and connector.
Component Precautions
System components referenced in this manual comply with regulatory standards
documented herein. Use of other components in their place might violate country
standards, negate regulatory compliance, or invalidate the product warranty.
Maintenance Port Precautions
The maintenance port generates, uses, and radiates radio-frequency energy through cables
that are connected to this port. This energy might interfere with radio and television
reception. Do not leave a cable connected to this port when not communicating with the
controller.
24 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Establishing a Local Connection to the
Controller
Communication with a controller is done locally or remotely. Use a local connection to
configure the controller for the first time. Use a remote connection to the host system for
all subsequent configuration tasks. Refer to the controller installation and configuration
guide that came with the platform kit for details.
A maintenance port, located on the front of the controller, provides a convenient way to
connect a PC or terminal to the controller for troubleshooting or configuring the controller.
This port accepts a standard RS-232 jack from any EIA-423 compatible terminal or a PC
with a terminal-emulation program. The maintenance port supports serial communications
with a default value of 9600 baud (using 8 data bits, 1 stop bit, and no parity bit).
NOTE: A maintenance port cable (see Figure 21) is provided for connecting to a PC. This cable
has a 9-pin connector molded onto one end, to which three optional adapters can be attached
for making a maintenance terminal connection.
Use the following steps to establish a local connection for setting the initial controller
configuration:
1. Turn off the PC or terminal, and connect the maintenance port cable to the controller,
as shown in Figure 21.
a. For a PC connection, plug one end of the maintenance port cable into the
communication port of the PC; plug the other end into the controller maintenance
port.
b. For a terminal connection, refer to Figure 21 for cabling information. Adapter
part numbers are provided in Chapter 1, in section "Subsystem
Components--Exploded Views" under the specific subsystem type.
Common Replacement Information and Procedures 2 5
1 Maintenance port
cable for a PC
connection
2 Maintenance port
Optional Maintenance Port
Cable Adapters for a
Terminal Connection
6
1
5
4
3
2
1
Adapters (not shown),
2
9-pin D-sub to 25-pin
D-sub:
s Male to female
(null modem)
s Male to male
(null modem)
s Male to male (modem)
CXO7181A
Figure 21. PC/terminal to maintenance port connection
CAUTION: Connecting a maintenance port cable between the controller and the PC
(or terminal) might cause radio and television interference. Do not leave a
maintenance port cable connected to the controller via the maintenance port unless
communication with the controller is necessary.
2. Turn on the PC or terminal.
3. Configure the terminal emulation software for 9600 baud, 8 data bits, 1 stop bit, and no
parity bit.
4. Press the Enter or Return key. The command line interface (CLI) prompt appears,
indicating that a local connection was established with the controller.
NOTE: The default data transfer rate of a new controller is 9600 baud. The maximum transfer
rate is 19200. If the current configuration uses 19200, use step 5 to establish this rate.
5. Optional step: To increase the data transfer rate to 19200 baud:
a. Set the controller to 19200 baud with one of the following commands:
SET THIS_CONTROLLER TERMINAL SPEED=19200
SET OTHER_CONTROLLER TERMINAL SPEED=19200
26 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
b. Configure the terminal emulation software for 19200 baud.
When entering CLI commands in a dual-redundant controller configuration, remember
that the controller connected to is "this controller" and the remaining controller is the
"other controller."
Fiber Optic Cable Cleaning Instructions
To ensure optimum performance and lifespan of the cable, it is essential that you clean the
fiber optic cables when replacing the controller. Use the polyester cloth from the cleaning
kit that came with the cable. Figure 22 shows the ferrule on a fiber optic cable.
1 Ferrule
1
CXO6503B
Figure 22. Ferrule on a fiber optic cable
CAUTION: Compaq recommends cleaning the fiber optic cable only when replacing a
controller. Overcleaning might cause damage to the ferrules.
NOTE: When installing a fiber optic cable for the first time, this procedure can be omitted.
1. Using the polyester cleaning cloth that came with the cable cleaning kit, cover your
fingers and squeeze one ferrule between two fingers.
2. Rotate the cloth around the ferrule one or two times.
3. When the first ferrule is clean, move your fingers to a different area of the cloth and
repeat step 1 and step 2 for the remaining ferrule.
Common Replacement Information and Procedures 2 7
Cleaning a GLM
When replacing a GLM, make sure to clean the GLM receptacles to ensure optimum
performance. Use the following steps to clean a GLM:
1. Take the polyester swab from the cleaning kit that came with the fiber optic cable.
CAUTION: Do not exert excessive force when the swab reaches a stopping point, and
do not repeat this procedure frequently. Failure to comply with this caution might
cause scratching on the GLM and ultimately damage the fiber optic connection.
Overcleaning might cause damage to the GLM.
2. Gently insert the lint-free polyester swab into the transmit-side of the optical GLM
cavity (see Figure 23).
2
3
1
1 GL M
2 Receptacle
3 Swab
6
5
4
3
2
1
CXO6531B
Figure 23. Cleaning procedure for GLM
3. Carefully remove dust from the cavity by rotating the swab tip back and forth one or
two times.
4. Repeat step 1 through step 3 for the receiving side of the optical GLM cavity.
28 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Replacing a GLM
This section shows how to replace a GLM in a controller. Figure 24 shows the location
and orientation of the GLMs.
1
3
2
1
4 Access door
2 Port 1 GLM
5
3 Release lever
6
4 Locking tab
5 Guide holes
6 GLM connector
7 Port 2 GLM
7
CXO6245C
Figure 24. Location of GLMs inside a controller
CAUTION: ESD can easily damage a controller and GLM. Wear a snug-fitting,
grounded ESD wrist strap.
Common Replacement Information and Procedures 2 9
Removing a GLM
Use the following steps and Figure 24 to remove a GLM:
1. Remove the controller using steps in Chapter 3.
2. Remove the screw that secures the access door 1 on top of the controller.
3. Remove the access door and set the door aside.
4. Disengage the GLM locking tabs 4 that protrude through the guide holes 5 on the
bottom side of the controller.
5. Operate the release lever 3 on the exposed end of the GLM by pressing the lower end
of the release lever with your index finger while pulling the raised end up with your
thumb.
6. Remove the GLM.
Installing a GLM
Use the following steps and Figure 24 to install a GLM:
NOTE: Before inserting the replacement GLM, note the holes in the board where the GLM will
reside.
1. Place the cable connection end of the GLM through the opening on the front of the
controller.
2. Line up the locking tab 4 on the bottom of the replacement GLM with the guide
holes 5 in the board, and press firmly to seat the GLM.
3. Press the release lever 3 firmly into place to secure the GLM.
4. Install the access door 1 on top of the controller and secure the door with a screw.
5. Install the controller using steps in Chapter 3.
210 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Replacing a Fiber Optic Cable, Switch,
or Hub
This section shows how to replace a fiber optic cable, switch, or hub.
Removing a Fiber Optic Cable, Switch, or Hub
Use the following steps to remove a fiber optic cable connected to either side of your
switch or hub, or to remove the switch or hub:
1. Shut down the host system using host documentation.
2. Shut down the controllers.
In single-controller configurations, shut down "this controller" with the following
command:
SH UTDOWN THIS_CONTROLLER
In dual-redundant controller configurations, shut down the "other controller" first,
then shut down "this controller" with the following commands:
SH UTDOWN OTHER_CONTROLLER
SH UTDOWN THIS_CONTROLLER
NOTE: After the controllers shut down, the reset buttons and the first three LEDs turn ON (see
Figure 25). This might take several minutes to happen, depending on the amount of data that
needs to be flushed from the cache modules.
Proceed only after the reset buttons stop FLASHING and remain ON.
1
2
1 Reset button
2 First three LEDs
1 2 3 4 5 6
CXO6991A
Figure 25. Controller reset button and first three LEDs
IMPORTANT: When replacing several cables, a switch, or a hub, label each cable to facilitate
installation of the replacement item. Otherwise, subsystem errors will develop from improper
connections.
Common Replacement Information and Procedures 2 11
3. If replacing a fiber optic cable without extender clips, disconnect the failed cable at
each end using thin needle-nose pliers (see inset on Figure 26).
If replacing a switch or hub, disconnect all cables connected to the switch or hub.
CXO6613A
Figure 26. Using thin needle-nose pliers to disconnect a fiber optic cable
Installing a Fiber Optic Cable, Switch, or Hub
Use the following steps to install a fiber optic cable connected to either side of a switch or
hub, or to install a switch or hub:
1. If replacing a cable, connect the replacement cable into the ports previously used by
the old cable.
If replacing a switch or hub, reconnect all cables removed from the old switch or hub.
2. Restart each controller by pressing the reset button.
The controllers automatically restart and the subsystem is now ready for operation.
IMPORTANT: If a controller did not restart, use step a through step c.
s
a. Press and hold the controller reset button.
b. Reseat the controller program card.
c. Release the reset button.
3. Restart the host system using host documentation.
212 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Replacing DIMMs
This section shows how to replace DIMMs in a cache module. DIMM locations are shown
in Figure 27 and supported configurations are shown in Table 21.
3
1
4
2
CXO6576B
Figure 27. Cache module DIMM locations
Table 21 Cache Module Memory Configurations
Memory DIMMs Quantity L o catio n
128 MB 32 MB 4 1234
256 MB 128 MB 2 13
512 MB 128 MB 4 1234
CAUTION: ESD can easily damage a cache module or a DIMM. Wear a snug-fitting,
grounded ESD wrist strap.
NOTE: If a DIMM fails, note which DIMM needs replacement based on the diagram displayed on
the console.
Common Replacement Information and Procedures 2 13
Use Figure 28 during the removal and installation procedures for component
clarification.
1
1 DIMM
2 DIMM slot
3
2 DIMM retaining clip
3
CXO6577B
Figure 28. DIMM components
214 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Removing DIMMs
Use the following steps to remove a DIMM from a cache module:
1. Remove the cache module using steps in Chapter 3.
2. Press down on the DIMM retaining clips 3 at both ends of the DIMM 1 being
removed (see Figure 28).
NOTE: To make pressing down on the DIMM retaining clips easier, use the eraser end of a
pencil or a small screwdriver.
3. Gently remove the DIMM from the DIMM slot 2 and place the DIMM in an antistatic
bag or on a grounded antistatic mat.
4. Repeat step 2 and step 3 for each DIMM.
Installing DIMMs
Use the following steps to install a DIMM in a cache module:
1. Insert each DIMM 1 straight into the appropriate slot 2 of the cache module, ensuring
that the notches in the DIMM align with the tabs in the slot (see Figure 28).
2. Press the DIMM gently into the slot until seated at both ends.
3. Engage the two retaining clips 3 for the DIMM.
4. Make sure both ends of the DIMM are firmly seated in the slot and both retaining clips
engage the DIMM.
5. Repeat step 1 through step 4 for each DIMM.
6. Install the cache module using steps in Chapter 3.
Common Replacement Information and Procedures 2 15
Replacing a Failed Storageset Member
If a disk drive fails in a RAIDset or mirrorset, the controller automatically places the disk
drive into the failedset. If the spareset contains a replacement drive that satisfies the
storageset replacement policy, the controller automatically replaces the failed member
with the replacement drive. If the spareset is empty or does not contain a satisfactory drive,
the controller simply "reduces" the storageset so that the storageset can operate without
one of the members.
The storageset remains in this "reduced" state until the spareset contains a satisfactory
drive. If the controller senses a satisfactory drive in the spareset, the controller
automatically places the drive into the storageset and restores the storageset to normal.
Therefore, replacing a failed storageset member means putting a satisfactory drive into
the spareset.
Removing a Failed RAIDset or Mirrorset Member
Use the following steps to remove a failed RAIDset or mirrorset member:
1. Connect a PC or terminal to the controller maintenance port that accesses the reduced
RAIDset or mirrorset.
2. Enable AUTOSPARE with the following command:
SET FAILEDSET AUTOSPARE
With AUTOSPARE enabled, any new disk drive--one that has not been in an array
before--inserted into the Port-Target-LUN (PTL) location of a failed disk drive is
automatically initialized and placed into the spareset.
3. Remove the failed disk drive.
Installing a New RAIDset or Mirrorset Member
To install a new RAIDset or mirrorset member, insert a new disk drive that satisfies the
replacement policy of the reduced storageset into the PTL location of the failed disk drive.
NOTE: The controller automatically initializes a new disk drive and places this drive into the
spareset. As soon as the disk drive becomes a member of the spareset, the controller
automatically uses the drive to restore the reduced RAIDset or mirrorset. If initialization of the
new disk drive fails, the drive is placed into the failedset.
3
Chapter
Replacement Procedures for
Model 2100 Enclosure Elements
This chapter provides procedures for shutting down and restarting the subsystem and
procedures for replacing the following Model 2100 enclosure elements:
s Array controller
s Cache module
s ECB
s I/O module
Refer to enclosure documentation for information about replacing power supplies, cooling
fans, bus cables, and power cables.
IMPORTANT: See Chapter 2 to review the list of required tools and the precautions to follow
prior to performing any procedure within this chapter.
32 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Shutting Down the Subsystem
Use the following steps to shut down a Model 2100 subsystem.
1. Connect a PC or terminal to the maintenance port of one of the controllers in the
subsystem.
2. From a host console, stop all host activity to the controller and dismount the logical
units in the subsystem.
3. If using a Windows NT or Windows 2000 platform, shut down the server.
4. Shut down the controllers.
In single-controller configurations, shut down "this controller" with the following
command:
SH UTDOWN THIS_CONTROLLER
In dual-redundant controller configurations, shut down the "other controller" first,
then shut down "this controller" with the following commands:
SH UTDOWN OTHER_CONTROLLER
SH UTDOWN THIS_CONTROLLER
NOTE: After the controllers shut down, the reset buttons and the first three LEDs turn ON (see
Figure 31). This might take several minutes to happen, depending on the amount of data that
needs to be flushed from the cache modules.
Proceed only after the reset buttons stop FLASHING and remain ON.
1
2
1 Reset button
2 First three LEDs
1 2 3 4 5 6
CXO6991A
Figure 31. Controller reset button and first three LEDs
5. Remove power to the subsystem.
CAUTION: When shutting down the controller for longer than one day, reseat each
ECB to stop the ECB fault LED from FLASHING and prevent the ECB battery from
discharging.
Replacement Procedures for Model 2100 Enclosure Elements 3 3
Restarting the Subsystem
Use the following steps to restart a Model 2100 subsystem.
1. Refer to enclosure documentation for specific procedures to follow for restarting the
subsystem.
NOTE: Applying power to the subsystem automatically starts the controllers and turns ON the
ECBs. A controller restart can take as long as 60 seconds, indicated by the temporary cycling of
the port LEDs and a FLASHING reset button.
IMPORTANT: If a controller did not restart, use the following steps:
1. Press and hold the controller reset button.
2. Reseat the controller program card.
3. Release the reset button.
2. Mount the logical units on the host.
3. If using a Windows NT or Windows 2000 platform, restart the server.
34 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Replacement Procedures for Controller
and Cache Modules in a Single-Controller
Configuration
This section shows how to replace modules in a single-controller configuration (see
Figure 32), to include: replacing both the controller and cache module, replacing only the
controller, and replacing only the cache module. To upgrade a single-controller
configuration to a dual-redundant controller configuration, see Chapter 4.
1 Controller A
1
2 Cache A
3 Fiber optic cable
2 with extender
clip
3
CXO7178A
Figure 32. Single-controller configuration (Model 2200 example)
CAUTION: In a single-controller configuration, always shut down the subsystem
before removing or replacing any modules. Otherwise, data loss might occur.
For fiber optic cables without extender clips, thin needle-nose pliers must be used to
remove the cable from the controller without potentially damaging the cable (see
Figure 33).
Replacement Procedures for Model 2100 Enclosure Elements 3 5
CXO6613A
Figure 33. Using thin needle-nose pliers to disconnect a fiber optic cable
IMPORTANT: For single-controller configurations, the only supported controller and cache
module bays are Controller A and Cache A. Do not use Controller B and Cache B bays instead of
Controller A and Cache A bays.
Replacing the Controller and Cache Module in a
Single-Controller Configuration
If both the controller and cache module need to be replaced, replace the controller first and
then the cache module. The following sections contain steps for replacing each module in
a single-controller configuration.
36 HSG60 Array Controller ACS Version 8.6 Maintenance and Service Guide
Replacing the Controller in a Single-Controller
Configuration
To replace the controller in a single-controller configuration, follow the instructions in this
section for removing and installing the controller.
Remo ving the Controller
Use the following steps to remove the controller in a single-controller configuration.
CAUTION: ESD can easily damage the controller. Wear a snug-fitting, grounded ESD
wrist strap.
1. Is the controller operating?
Yes. Connect a PC or terminal to the controller maintenance port.
No. Go to step 7.
2. From the host console, dismount the logical units in the subsystem.
3. If using a Windows NT or Windows 2000 platform, shut down the server.
4. Run the fault management utility (FMU) to obtain the last failure codes, if desired.
5. Is a disk initialized with the SAVE_CONFIGURATION switch?
Yes. Use the following command to save the current device configuration for "this
controller:"
CONFIGURATION SAVE
No. Locate existing information that will support the manual configuration of the
subsystem. The replacement controller must be manually configured as described
in the controller CLI reference guide.
6. Shut down the controller with the following command:
SH UTDOWN THIS_CONTROLLER
NOTE: After the controller shuts down, the reset button and the first three LEDs turn ON (see
Figure 31). This might take several minutes to happen, depending on the amount of data that
needs to be flushed from the cache module.
Proceed only after the reset button stops FLASHING and remains ON.
Replacement Procedures for Model 2100 Enclosure Elements 3 7
CAUTION: The cache module might contain unwritten data if the controller crashes
and the controller cannot be shut down with the SHUTDOWN THIS_CONTROLLER
command. Loss of data might occur.
7. Remove the program card ESD cover and program card. Save them in an antistatic bag
or on a grounded antistatic mat for use with the replacement controller.
CAUTION: For fiber optic cables without extender clips, thin needle-nose pliers must
be used to remove the cable from the controller without potentially damaging the
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