First Edition (December 1998)
Part Number EK-HSZ80-SV. A01/388221-001
Compaq Computer Corporation
While Compaq Computer Corporation believes the information included in this manual is correct as of the date
of publication, it is subject to change without notice. Compaq makes no representations that the interconnec-
tion of its products in the manner described in this document will not infringe existing or future patent rights,
nor do the descriptions contained in this document imply the granting of licenses to make, use, or sell equip-
ment or software in accordance with the description. No responsibility is assumed for the use or reliability of
firmware on equipment not supplied by Compaq or its affiliated companies. Possession, use, or copying of the
software or firmware described in this documentation is authorized only pursuant to a valid written license
from Compaq, an authorized sublicensor, or the identified licensor.
Com mercial Computer Software, Computer Software Documentation and Technical Data for Commercial
Items are licensed to the U.S. Government with Compaq's standard commercial license and, when applicable,
the rights in DFAR 252.227 7015, "Technical Data-Commercial Items."
1998 Compaq Computer Corporation.
All rights reserved. Printed in U.S.A.
Com paq, the Compaq logo, DIGITAL, DIGITAL UNIX, DECconnect, HSZ, HSG, StorageWorks, VMS,
OpenVMS Registered in the United States Patent and Trademark Office.
UNIX is a registered trademark in the United States and other countries exclusively through X/Open Company
Ltd. Windows NT is a registered trademark of the Microsoft Corporation. Sun is a registered trademark of Sun
Microsystems, Inc. Hewlett-Packard, TACHYON, and HP-UX are registered trademarks of the Hewlett-Pack-
ard Company. IBM and AIX are registered trademarks of International Business Machines Corporation. All
other trademarks and registered trademarks are the property of their respective owners.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interfer-
ence when the equipment is operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the manuals, may cause harm-
ful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.
Restrictions apply to the use of the local-connection port on this series of controllers; failure to observe these
restrictions may result in harmful interference. Always disconnect this port as soon as possible after complet-
ing the setup operation. Any changes or modifications made to this equipment may void the user's authority to
operate the equipment.
Warning!
This is a Class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures.
Achtung!
Dieses ist ein Gert der Funkstrgrenzwertklasse A. In Wohnbereichen knnen bei Betrieb dieses Gertes
Rundfunkstrungen auftreten, in welchen Fllen der Benutzer fr entsprechende Gegenmanahmen verant-
wortlich ist.
Attention!
Ceci est un produit de Classe A. Dans un environnement domestique, ce produit risque de crer des inter-
frences radiolectriques, il appartiendra alors l'utilisateur de prendre les mesures spcifiques appropries.
JAPAN
USA
This equipment generates, uses, and may emit radio frequency energy. The equipment has been type tested and
found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC rules, which are
designed to provide reasonable protection against such radio frequency interference. Operation of this equip-
ment in a residential area may cause interference in which case the user at his own expense will be required to
take whatever measures may be required to correct the interference. Any modifications to this device - unless
expressly approved by the manufacturer - can void the user's authority to operate this equipment under part 15
of the FCC rules.
v
Contents
About this Guide
Getting Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Compaq Website. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Telephone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Component Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Maintenance Port Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
Typographical Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
Special Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
Chapter 1
General Description
System Components
Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
HSZ80 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Environmental Monitoring Unit (EMU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 2
Replacement Procedures
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
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Preparation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Establishing a Local Connection to the Controller. . . . . . . . . . . . . . . . . . . . . . 22
Shutting Down the Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Disabling the External Cache Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Restarting the Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Replacing Modules in a Single-Controller Configuration. . . . . . . . . . . . . . . . . . . . 28
Replacing a Controller and Cache Module in a Single-Controller
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Replacing a Controller in a Single-Controller Configuration . . . . . . . . . . . . . 29
Removing the Controller in a Single-Controller Configuration . . . . . . . . 29
Installing the Controller in a Single-Controller Configuration . . . . . . . 211
Replacing a Cache Module in a Single-Controller Configuration . . . . . . . . . 213
Removing the Cache Module in a Single-Controller Configuration . . . 213
Installing the Cache Module in a Single-Controller Configuration . . . . 214
Replacing Modules in a Dual-Redundant Controller Configuration . . . . . . . . . . . 216
Replacing a Controller and Cache Module in a Dual-Redundant
Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Removing a Controller and Cache Module in a Dual-Redundant
Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Installing a Controller and its Cache Module in a Dual-Redundant
Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Replacing a Controller in a Dual-Redundant Controller Configuration . . . . 225
Removing a Controller in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Installing a Controller in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Replacing a Cache Module in a Dual-Redundant Controller
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Removing a Cache Module in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
vii
Installing a Cache Module in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Replacing an External Cache Battery Storage Building Block . . . . . . . . . . . . . . 238
Replacing an External Cache Battery Storage Building Block With
Cabinet Powered On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Replacing an External Cache Battery Storage Building Block With
Cabinet Powered Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Replacing a PVA Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Replacing an I/O Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Replacing an EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Removing an EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Installing an EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Replacing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Removing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Installing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Replacing a PCMCIA Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Replacing a Failed Storageset Member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Removing a Failed RAIDset or Mirrorset Member . . . . . . . . . . . . . . . . . . . . 257
Installing the New Member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Chapter 3
Upgrading the Subsystem
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Upgrading Controller Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Installing a New Program Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Downloading New Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Using CLCP to Install, Delete, and List Software Patches . . . . . . . . . . . . . . . 38
Installing a Software Patch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
viii
Deleting a Software Patch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Listing Software Patches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Upgrading Firmware on a Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Upgrading to a Dual-Redundant Controller Configuration . . . . . . . . . . . . . . . . . . 317
Installing a New Controller, Cache Module, and ECB . . . . . . . . . . . . . . . . . 317
Upgrading Cache Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Chapter 4
Troubleshooting
Running the Controller's Diagnostic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Charging Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Battery Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Troubleshooting Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Fault-Tolerance for Write-Back Caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Nonvolatile Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Cache Policies Resulting from Cache Module Failures . . . . . . . . . . . . . 417
Significant Event Reporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
Events that cause controller termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
Flashing OCP Pattern Display Reporting . . . . . . . . . . . . . . . . . . . . . . . . 425
Solid OCP Pattern Display Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . 427
Last Failure Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433
Events that do not cause controller operation to terminate . . . . . . . . . . . . . . 433
Spontaneous Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434
CLI Event Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435
Utilities and Exercisers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
Fault Management Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
Displaying Failure Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Translating Event Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
ix
Instance Codes and Last-Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . 440
Controlling the Display of Significant Events and Failures . . . . . . . . . . 440
Using VTDPY to Check for Communication Problems . . . . . . . . . . . . . . . . 443
Checking Controller-to-Host Communications . . . . . . . . . . . . . . . . . . 445
Checking Controller-to-Device Communications . . . . . . . . . . . . . . . . . 447
Checking Device Type and Location . . . . . . . . . . . . . . . . . . . . . . . . 448
Checking Device Status and I/O Activity . . . . . . . . . . . . . . . . . . . . 448
Checking Device-Port Status and I/O Activity . . . . . . . . . . . . . . . . 450
Checking Unit Status and I/O Activity . . . . . . . . . . . . . . . . . . . . . . . . . . 451
Disk Inline Exerciser (DILX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
Checking for Disk-Drive Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
Finding a Disk Drive in the Subsystem . . . . . . . . . . . . . . . . . . . . . . 455
Testing the Read Capability of a Disk Drive . . . . . . . . . . . . . . . . . . 456
Testing the Read and Write Capabilities of a Disk Drive . . . . . . . . 457
DILX Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
Configuration Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
Code Load and Code Patch Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462
Clone Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Field Replacement Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Change Volume Serial Number Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464
Device Statistics Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464
Chapter 5
Event Reporting: Templates and Codes
Passthrough Device Reset Event Sense Data Response . . . . . . . . . . . . . . . . . . . . . 52
Last Failure Event Sense Data Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Multiple-Bus Failover Event Sense Data Response . . . . . . . . . . . . . . . . . . . . . 55
Failover Event Sense Data Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Nonvolatile Parameter Memory Component Event Sense Data Response . . . 59
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
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Backup Battery Failure Event Sense Data Response . . . . . . . . . . . . . . . . . . . 511
Subsystem Built-In Self Test Failure Event Sense Data Response . . . . . . . . 513
Memory System Failure Event Sense Data Response . . . . . . . . . . . . . . . . . . 515
Device Services Non-Transfer Error Event Sense Data Response. . . . . . . . . 516
Disk Transfer Error Event Sense Data Response . . . . . . . . . . . . . . . . . . . . . . 518
Instance Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520
Instance Code Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520
Instance Codes and FMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520
NR Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521
Repair Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521
Event Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521
Component ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521
Last Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548
Last Failure Code Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548
Last Failure Codes and FMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548
HW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549
Restart Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549
Parameter Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549
Repair Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550
Error Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550
Component IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550
Recommended Repair Action Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 595
Component Identifier Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5101
Event Threshold Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5103
ASC/ASCQ Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5104
xi
Chapter 6
Connectors, Switches, and LEDs
Controller Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Operator Control Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Power Verification and Addressing Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Environmental Monitoring Unit (EMU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Chapter 7
Controller Specifications
Physical and Electrical Specifications for the Controller . . . . . . . . . . . . . . . . . . . . 72
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Spare Part Number Cross Reference
System Components Exploded View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
HSZ80 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A4
Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A6
Environmental Monitoring Unit (EMU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A7
Glossary
Index
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
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Figures
The HSZ80 Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
HSZ80 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PC/Terminal to Maintenance Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
ECB SBB Battery Disable Switch Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Single-Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dual-Redundant Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
ECB SBB Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
I/O Module Locations in a BA370 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
I/O Module Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Cache-Module Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
DIMM Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
PCMCIA Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
PCMCIA Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Location of Write-Protection Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Upgrading Device Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Cache-Module Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
DIMM Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Xfer Rate Region of the Default Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445
Regions on the Device Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447
Unit Status on the Cache Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452
Passthrough Device Reset Event Sense Data Response Format . . . . . . . . . . . . . . . 52
Template 01 - Last Failure Event Sense Data Response Format . . . . . . . . . . . . . . 54
Template 04 - Multiple-Bus Failover Event Sense Data Response Format . . . . . . 56
Template 05 - Failover Event Sense Data Response Format . . . . . . . . . . . . . . . . . 58
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xiv
Template 11 - Nonvolatile Parameter Memory Component Event Sense
Data Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510
Template 12 - Backup Battery Failure Event Sense Data Response Format . . . . 512
Template 13 - Subsystem Built-In Self Test Failure Event Sense Data
Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514
Template 14 - Memory System Failure Event Sense Data Response Format . . . 515
Template 41 - Device Services Non-Transfer Error Event Sense Data
Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517
Template 51 - Disk Transfer Error Event Sense Data Response Format . . . . . . . 519
Structure of an Instance Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520
Instance Code Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520
Structure of a Last Failure Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548
Last Failure Code Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548
Controller Front Panel Connectors, Switches, and LEDS . . . . . . . . . . . . . . . . . . . 62
Operator Control Panel Switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
PVA Module Connectors and Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
EMU Connectors, Switches, and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
The HSZ80 Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A2
HSZ80 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A4
Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A6
EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A7
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xv
Tables
The HSZ80 Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
HSZ80 Fibre Channel Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Description of PC/Terminal to Maintenance Port Connection . . . . . . . . . . . . . . . . 24
Description of ECB SBB Battery Disable Switch . . . . . . . . . . . . . . . . . . . . . . . . . 26
Description of Single-Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Description of Dual-Redundant-Controller Configuration . . . . . . . . . . . . . . . . . . 216
ECB SBB Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Description of I/O Modules in a BA370 Enclosure . . . . . . . . . . . . . . . . . . . . . . . 246
Cache Module Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
DIMM Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
PCMCIA Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
PCMCIA Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Cache Module Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
DIMM Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Cache Policies and Cache Module Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Resulting Cache Policies and ECB Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
Flashing OCP Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
Solid OCP Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
Event-Code Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
FMU SET Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
VTDPY Key Sequences and Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444
Xfer Rate Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446
Device Map Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448
Device Status Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xvi
Device-Port Status Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
Unit Status Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
DILX Control Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
Data Patterns for Phase 1: Write Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
DILX Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
HSUTIL Messages and Inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
Instance Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522
Controller Restart Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549
Last Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550
Recommended Repair Action Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 595
Component Identifier Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5101
Event Notification/Recovery Threshold Classifications . . . . . . . . . . . . . . . . . . . 5103
ASC and ASCQ Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5104
Controller Front Panel Connectors, Switches, and LEDs . . . . . . . . . . . . . . . . . . . . 62
Operator Control Panel Switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
PVA Connectors and Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
EMU Connectors, Switches, and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Controller Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Optimum Operating Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . 73
Maximum Operating Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . 74
Maximum Nonoperating Environmental Specifications . . . . . . . . . . . . . . . . . . . . 74
The HSZ80 Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A3
HSZ80 Array Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A5
Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A6
EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A7
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xvii
About this Guide
This book describes the features of the HSZ80 array controller and configuration
procedures for the controller and storagesets running Array Controller Software
(ACS) Version 8.3Z.
This book does not contain information about the operating environments to which
the controller may be connected, nor does it contain detailed information about
subsystem enclosures or their components. See the documentation that accompanied
these peripherals for information about them.
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 Website
The COMPAQ Website has information on this product as well as the latest drivers
and Flash ROM images. You can access the COMPAQ website by logging on to the
Internet at http://www.compaq.com.
Telephone Numbers
For the name of your nearest COMPAQ Authorized Reseller:
In the United States, call 1-800-345-1518.
In Canada, call 1-800-263-5868.
For Compaq technical support:
In the United States and Canada, call 1-800-386-2172.
For COMPAQ technical support phone numbers outside the United States and
Canada, visit the COMPAQ Website at: http://www.compaq.com.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xviii About this Guide
Precautions
Follow these precautions when carrying out the procedures in this book.
Electrostatic Discharge Precautions
Static electricity collects on all nonconducting material, such as paper, cloth, and
plastic. An electrostatic discharge (ESD) can easily damage a controller or other
subsystem component even though you may not see or feel the discharge. Follow
these precautions whenever you're servicing a subsystem or one of its components:
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 its grounding lead is attached to a bus that is a verified earth
ground.
s Before touching any circuit board or component, always touch a verifiable earth
ground to discharge any static electricity that may be present in your clothing.
s Always keep circuit boards and components away from nonconducting 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 you remove the card, put it in its original carrying case. Never touch
the contacts or twist or bend the card while you're handling it.
s Never touch the connector pins of a cable when it is attached to a component or
host.
Component Precaution
System components referenced in this manual comply to regulatory standards
documented herein. Use of other components in their place may violate country
standards, negate regulatory compliance, or invalidate the warranty on your product.
xix
Maintenance Port Precautions
The maintenance port generates, uses, and radiates radio-frequency energy through
cables that are connected to it. This energy may interfere with radio and television
reception. Do not leave a cable connected to this port when you're not communicating
with the controller.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xx About this Guide
Conventions
This book uses the following typographical conventions and special notices to help
you find what you're looking for.
Typographical Conventions
Convention Meaning
ALLCAPS Command syntax that must be entered exactly as shown
and for commands discussed within text, for example:
SET FAILOVER COPY=OTHER_CONTROLLER
"Use the SHOW SPARESET command to show the contents of
the spareset."
Screen display.
Monospaced
Sans serif italic Command variable or numeric value that you supply, for
example: SHOW RAIDset-name or
set this_controller id=(n,n,n,n,)
italic Reference to other books or publications, for example:
"See the HSG80 Array Controller ACS V8.2 Release Notes
for details."
. Indicates that a portion of an example or figure has been
. omitted.
"this controller" The controller serving your current CLI session through a
local or remote terminal.
"other controller" The controller in a dual-redundant pair that's connected
to the controller serving your current CLI session.
xxi
Special Notices
This book doesn't contain detailed descriptions of standard safety procedures.
However, it does contain warnings for procedures that could cause personal injury and
cautions for procedures that could damage the controller or its related components.
Look for these symbols when you're carrying out the procedures in this book:
WARNING: A warning indicates the presence of a hazard that can cause
personal injury if you do not observe the precautions in the text.
CAUTION: A caution indicates the presence of a hazard that might dam-
age hardware, corrupt software, or cause a loss of data.
IMPORTANT: An important note is a type of note that provides information
essential to the completion of a task. Users can disregard information in a note
and still complete a task, but they should not disregard an important note.
NOTE: A note provides additional information that's related to the completion of an
instruction or procedure.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xxii About this Guide
Required Tools
You will need the following tools to service the controller, cache module, external
cache battery (ECB), the Power Verification and Addressing (PVA) module, the
Gigabit Link Module (GLM), and the I/O module:
s A flathead screwdriver for loosening and tightening the I/O module retaining
screws.
s An antistatic wrist strap.
s An antistatic mat on which to place modules during servicing.
s A Storage Building Block (SBB) Extractor for removing StorageWorks building
blocks. This tool is not required, but it will enable you to perform more
efficiently.
xxiii
Related Publications
The following table lists some of the Compaq StorageWorks documents related to the
use of the controller, cache module, external cache battery, graphical user interface,
and the subsystem.
Document Title Part Number
BA370 Enclosure Rack Template (Compaq 42U Rack) 355224-001 EK-RKTMP-TP
Command Console Version 2.1 HSZ80 User's Guide 388725-001 AA-RF9TA-TE
Disaster Tolerant Solutions Getting Started Guide for N/A AA-RC3CA-TE
DIGITAL UNIX
Disaster Tolerant Solutions User's Guide for DIGITAL UNIX N/A EK-SWXDT-UG
External Cache Battery Shelf Installation Card 355222-001 EK-HSECB-IC
(Compaq 42U Rack)
Hardware Configuration Poster for HSZ80 388724-001 EK-HSZ80-CP
HSZ80 Array Controller ACS V8.3 for DIGITAL UNIX N/A AG-RFA0A-BE
CD-ROM
HSZ80 Array Controller ACS V8.3 for DIGITIAL UNIX Release 388713-001 AA-RF9YA-TE
Notes
HSZ80 Array Controller ACS V8.3 for IBM-AIX Release 388711-001 AA-RFALA-TE
Notes
HSZ80 Array Controller ACS V8.3 for OpenVMS Release 388712-001 AA-RFAEA-TE
Notes
HSZ80 Array Controller ACS V8.3 Configuration and CLI 388222-001 EK-HSZ80-RG
Reference Guide
HSZ80 Array Controller Illustrated Parts Map 388220-001 EK-HSZ80-MP
Installation Card (Compaq 42U Rack) 355210-001 EK-H80RM-IC
Installing a Ferrite Bead on a Host Bus N/A EK-SWXES-IG
The RAIDBOOK--A Source for RAID Technology N/A RAID Advisory Board
RA8000/ESA12000 HSZ80 ACS V8.3 for DIGITAL UNIX 388701-001 AA-RF9ZA-TE
Installation Reference Manual
RA8000/ESA12000 HSZ80 ACS V8.3 for DIGITAL UNIX Quick 388700-001 AA-RF9XA-TE
Setup Guide
RA8000/ESA12000 HSZ80 ACS V8.3 for IBM-AIX Installation 388710-001 AA-RFAMA-TE
Reference Manual
RA8000/ESA12000 HSZ80 ACS V8.3 for IBM-AIX Quick 388709-001 AA-RFAK A-TE
Setup Guide
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
xxiv About this Guide
Document Title Part Number
RA8000/ESA12000 HSZ80 ACS V8.3 for OpenVMS 388733-001 AA-RFAFA-TE
Installation Reference Manual
RA8000/ESA12000 HSZ80 ACS V8.3 for OpenVMS Quick 388732-001 AA-RFADA-TE
Setup Guide
RA8000/ESA12000 Storage Subsystem User's Guide 387404-001 EK-SMC PR-UG
Rail Mounting Installation Card (Compaq 42U Rack) 355223-001 EK-H8RMB-IC
Ultra SCSI RAID Enclosure (DS-BA370 Series) User's Guide 387403-001 EK-B A 370-UG
Warranty Terms and Conditions N/A EK-HSXSW-WC
Revision History
This is a new document.
11
Chapter 1
General Description
This chapter provides the illustrated parts breakdown and a spare list for the HSZ80
array controller subsystem. See for the names of referenced spare parts.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
12 General Description
System Components
Exploded View
1
16
2
15
13 14
3
12 2x
4
11
10
9 2x
5
8 2x
6
7
CXO6742A
Figure 11 The HSZ80 Subsystem
13
Table 11 The HSZ80 Subsystem
Item Description Part Number
1 BA370 rack-mountable enclosure 401914-001
400293-001
2 Cooling fan, blue
Cooling fan, gray 402602-001
3 Power cable kit, white 401915-001
4 I/O module, blue 400294-001
I/O module, gray 401911-001
5 SCSI hub, 3 port 401926-001
6 SCSI hub, 5 port 401927-001
7 SCSI hub, 9 port, upgrade 401929-001
NOTE: A complete 9-port SCSI hub requires a 5-port and
SCSI hub 401927-001
8 Cache module 400295-001
9 HSZ80 controller 103539-001
10 PVA module 400299-001
11 EM U 400286-001
12 AC input module 400287-001
13 180-watt power supply 400288-001
14 Disk drive, 4 GB, 7200 402153-001
Disk drive, 9 GB, 7200 400289-001
Disk drive, 18 GB, 7200 400290-001
Disk drive, 9 GB, 10K 402154-001
Disk drive, 18 GB, 10K 402229-001
15 Power cable, black 401915-001
16 ECB, dual (shown) 400291-001
ECB, single (not shown) 400292-001
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
14 General Description
HSZ80 Array Controller
1
6
5
4
3
2
1
2
3
6
4
5
CXO6703A
Figure 12 HSZ80 Array Controller
15
Table 12 HSZ80 Fibre Channel Array Controller
Item Description Part No.
1 Program card 103474-001
2 Trilink connectors 401948-001
3 Host bus cable, 1.5 meter 401941-001
Host bus cable, 2 meter 401940-001
Host bus cable, 10 meter 401942-001
Host bus cable, 15 meter 401943-001
Host bus cable, 20 meterr 401944-001
4 Terminator 401947-001
5 Jumper cable 401939-001
6 Ma intenance port cable 402605-001
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
16 General Description
Cache Module
1
~
2
CXO6570A
Figure 13 Cache Module
Table 13 Cache Module
Item Description Part No.
1 DIMM, 32 MB 400296-001
DIMM, 128 MB 400297-001
2 ECB Y cable for the BA370 Enclosure 400298-001
ECB Y cable for the Data Center Cabinet 401913-001
17
Environmental Monitoring Unit (EMU)
1
CXO6604A
Figure 14 EMU
Table 14 EMU
Item Description Part No.
1 EMU communication cable, 4 meter 401949-001
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
21
Chapter 2
Replacement Procedures
This chapter describes the procedures for replacing the controller, cache module,
external cache battery (ECB), power verification and addressing (PVA) module, I/O
module, environmental monitoring unit (EMU), DIMMs, PCMCIA card, and a failed
storageset member. Additionally, there are procedures for shutting down and
restarting the subsystem.
See the enclosure documentation for information about the power supplies, cooling
fans, and cables.
Required Tools
You will need the following tools to service the controller, cache module, external
cache battery (ECB), the Power Verification and Addressing (PVA) module, and the
I/O module:
s A flathead screwdriver for loosening and tightening the I/O module retaining
screws.
s An antistatic wrist strap.
s An antistatic mat on which to place modules during servicing.
s A Storage Building Block (SBB) Extractor for removing StorageWorks building
blocks. This tool is not required, but it will enable you to work more efficiently.
Electrostatic Discharge
Electrostatic discharge (ESD) is a common problem and may 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 also
increases the amount of static electricity. You must discharge all static electricity
prior to touching electronic equipment. Follow the precautions in Electrostatic
Discharge Precautions given in the Preface whenever you are replacing any
component.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
22 Replacement Procedures
Preparation Procedures
Establishing a Local Connection to the
Controller
You can communicate with a controller locally or remotely. Use a local connection to
configure the controller for the first time. Use a remote connection to your host
system for all subsequent configuration tasks. See the Quick Setup Guide that came
with your platform kit for details.
The maintenance port provides a convenient way to connect a PC or terminal to the
controller so that you can troubleshoot and configure 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 default values of 9600 baud using 8 data bits, 1 stop bit, and no parity.
NOTE: There are two maintenance port cables shown in Figure 21. One has a 9-
pin connector molded onto its end for a PC connection. An optional cable is
available for a terminal connection.
Follow these steps to establish a local connection for setting the controller's initial
configuration:
1. Turn off the PC or terminal, and connect it to the controller, as shown in Figure
21.
a. For a PC connection, plug one end of the maintenance port cable into the ter-
minal; plug the other end into the controller's maintenance port.
b. For a terminal connection, refer to Figure 21 on page 23 for cabling infor-
mation.
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.
23
6
1
5
4
3
2
1
2
3
4
5
6
7
CXO6584A
Figure 21. PC/Terminal to Maintenance Port Connection
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
24 Replacement Procedures
Table 21 Description of PC/Terminal to Maintenance Port Connection
Location Description
Ma intenance port cable for a PC
Ma intenance Port
Optional maintenance port cable for a terminal connection
BC16E-xx cable assembly
Ferrite bead
RJ-11 adapter
RJ-11 extension cable
PC serial port adapter, 9 pin D-sub to 25 pin D-sub
CAUTION: The cables connecting the controller and the PC (or terminal)
may cause radio and television interference. Only connect a PC or
terminal to the controller via the maintenance port when you need to
communicate with the controller.
4. Press the Enter or Return key. The CLI prompt appears, indicating that you
established a local connection with the controller.
5. Optional: to increase the data transfer rate to 19200 baud:
NOTE: If you are replacing a controller, do not increase the data transfer rate to
19200 baud. A new controller is set to 9600 baud (default).
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
b. Configure the PC or terminal for 19200 baud.
When you are entering CLI commands in a dual-redundant controller configuration,
remember that the conroller to which you're connected is "this controller" and the
remaining controller is the "other controller."
25
Shutting Down the Subsystem
Use the following steps to shut down a subsystem:
1. From a host console, stop all host activity and dismount the logical units in the
subsystem.
2. Connect a PC or terminal to the maintenance port of one of the controllers in
your subsystem.
3. Shut down the controllers. In single controller configurations, you only need to
shut down "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
When the controllers shut down, their reset buttons and their first three LEDs are
lit continuously. This may take several minutes, depending on the amount of data
that needs to be flushed from the cache modules.
4. Turn off the power to the subsystem.
CAUTION: If you are shutting down the controller for longer than one
day, perform the steps in the next section, "Disabling the External Cache
Batteries," to prevent the write-back cache batteries from discharging.
Disabling the External Cache Batteries
Use the following steps to disable the External Cache Batteries (ECBs):
NOTE: The ECB SBB may contain one or two batteries, depending on the
configuration.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
26 Replacement Procedures
1. Press the battery-disable switch located on each battery within the ECB SBB.
The switch is the small button labeled SHUT OFF next to the status LED (see
Figure 22). Press each switch for approximately five seconds. The status LED
will flash once and then shut off. Make sure you perform this procedure on both
ECB 1 and ECB 2, if appropriate.
2. The batteries are no longer powering the cache module.
1
3
4
5
2
CXO6164B
Figure 22. ECB SBB Battery Disable Switch Location
Table 22 Description of ECB SBB Battery Disable Switch
Location Description
External Cache Battery 1
External Cache Battery 2
Power connector
Status LED
Battery disable switch
27
NOTE: To return to normal operation, apply power to the storage subsystem. The
cache battery will be enabled when the subsystem is powered on.
Restarting the Subsystem
Use the following steps to restart a subsystem:
1. Plug in the subsystem's power cord, if it is not already plugged in.
2. Turn on the subsystem. The controllers automatically restart and the ECBs
automatically re-enable themselves to provide backup power to the cache
modules.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
28 Replacement Procedures
Replacing Modules in a Single-Controller
Configuration
Follow the instructions in this section to replace modules in a single-controller
configuration (see Figure 23). If you're replacing modules in a dual-redundant
controller configuration, see "Replacing Modules in a Dual-Redundant Controller
Configuration," page 216. To upgrade a single controller configuration to a dual
redundant controller configuration, see Chapter 3, "Upgrading the Subsystem."
1
2
3
4
5
CXO6290B
Figure 23. Single-Controller Configuration
Table 23 Description of Single-Controller Configuration
Location Description
EM U
Controller
Trilink connector and cables
Cache Module
PVA Module
29
The following sections cover procedures for replacing both the controller and cache
module, replacing the controller, and replacing the cache module.
CAUTION: In a single-controller configuration, you must shut down the
subsystem before removing or replacing any modules. If you remove the
controller or any other module without first shutting down the
subsystem, data loss may occur.
Replacing a Controller and Cache Module in a
Single-Controller Configuration
If both the controller and cache module need to be replaced, follow the steps in
"Replacing a Controller in a Single-Controller Configuration," page 29, and the
steps in "Replacing a Cache Module in a Single-Controller Configuration," page
213.
Replacing a Controller in a Single-Controller
Configuration
Use the following steps in "Removing the Controller in a Single-Controller
Configuration" and "Installing the Controller in a Single-Controller Configuration" to
replace the controller.
Remo ving the Controller in a Single-Controller
Configuration
Use the following steps to remove the controller:
1. From the host console, dismount the logical units in the subsystem. If you are
using a Windows NT platform, shut down the server.
2. If the controller is operating, connect a PC or terminal to the controller's
maintenance port.
If the controller is not operating, go to step 5.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
210 Replacement Procedures
3. Run FMU to obtain the last failure codes, if desired.
NOTE: If you initialized a container with the SAVE_ CONFIGURATION switch, you
can save this controller's current device configuration using the CONFIGURATION
SAVE command. If CONFIGURATION SAVE is not used, you will have to manually
configure the new controller as described in HSZ80 ACS Version 8.3 Configuration
and CLI Reference Guide.
4. Shut down the controller with the following command:
SH UTDOWN THIS_CONTROLLER
When the controller shuts down, its reset button and the first three LEDs are lit
continuously.
CAUTION: ESD can easily damage a controller. Wear a snug-fitting,
grounded ESD wrist strap.
The cache module may contain unwritten data if the controller crashed
and you weren't able to shut it down with the SHUTDOWN
THIS_CONTROLLER command.
5. Remove the program card's ESD cover and program card. Save them for the
replacement controller.
6. Remove the trilink connectors, but don't disconnect the host bus cables (or
terminators) from the trilink connectors.
NOTE: One or two trilink connectors may be attached, depending on the
configuration.
7. If connected, disconnect the PC or terminal from the controller's maintenance
port.
8. Disengage both retaining levers and remove the controller, then place the
controller into an antistatic bag or onto a grounded antistatic mat.
211
Installing the Controller in a Single-Controller
Configuration
Use the following steps to install the controller:
CAUTION: ESD can easily damage a controller. Wear a snug-fitting,
grounded ESD wrist strap.
Make sure you align the controller in the appropriate guide rails. If you
do not align the module correctly, damage to the backplane can occur.
1. Insert the new controller into its slot, and engage its retaining levers.
2. Connect the trilink connectors to the new controller.
NOTE: One or two trilink connectors may be attached, depending on the
configuration.
3. Connect a PC or terminal to the controller's maintenance port.
4. Hold the reset button while inserting the program card into the new controller.
Release the reset button and replace the ESD cover.
5. When the CLI prompt reappears, display details about the controller you
configured. Use the following command:
SH OW THIS_CONTROLLER FULL
See the SHOW THIS_CONTROLLER FULL in HSZ80 ACS Version 8.3 Config-
uration and CLI Reference Guide for more information about using this com-
mand.
6. See HSZ80 ACS Version 8.3 Configuration and CLI Reference Guide to configure
the controller.
NOTE: If the controller you're installing was previously used in another subsystem,
it will need to be purged of the controller's old configuration (see HSZ80 ACS
Version 8.3 Configuration and CLI Reference Guide).
7. To restore a configuration saved with the SAVE_CONFIGURATION switch,
hold button 6 while pressing and releasing the reset button.
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
212 Replacement Procedures
8. Using CLCP, install any patches that you had installed on the previous controller
(see Chapter 3, "Upgrading the Subsystem.")
9. Mount the logical units on the host. If you are using a Windows NT platform,
restart the server.
10. Set the subsystem date and time with the following command:
SET THIS_CONTROLLER TIME=dd-mmm-yyyy:hh:mm:ss
11. Disconnect the PC or terminal from the controller's maintenance port.
213
Replacing a Cache Module in a Single-
Controller Configuration
Use the following steps in "Removing the Cache Module in a Single-Controller
Configuration" and "Installing the Cache Module in a Single-Controller
Configuration" to replace the cache module.
Remo ving the Cache Module in a Single-Controller
Configuration
Use the following steps to remove the cache module:
1. From the host console, dismount the logical units in the subsystem. If you are
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