HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

ASC, ASCQ, Repair Action, and Component Identifier Codes
169HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
20 Repair Action Code 20 failures are bus-related failures and the indicated modules
reside on the PCI Data or Address Line (PDAL) bus.
Follow these steps to determine what caused the failure:
1. Replace the controller with a known good controller.
2. Replace the cache module associated with “this controller” with a known good
module.
3. Replace the cache module associated with “other controller” with a known good
module.
4. Replace the ECBs for “this controller” with known good ECBs.
5. Pull all modules and examine connectors for bent pins.
6. Replace controller cabinet assembly.
If the failure is not resolved after step 5, the problem is most likely backplane printed
circuit faults.
22 Replace the indicated cache module or the appropriate memory DIMMs on the
indicated cache module.
23 Replace the indicated write cache battery.
Caution: Battery replacement can cause injury. Follow the directions that come
with the new battery.
24 Check for the following invalid write cache configurations:
■ If the wrong write cache module is installed, replace with the matching module or
clear the invalid cache error through the CLI. Refer to the controller CLI reference
guide for more information.
■ If the write cache module is missing, reseat the cache module if the cache module is
present, or add the missing cache module, or clear the invalid cache error through
the CLI. Refer to controller CLI reference guide for more details.
■ If in a dual-redundant configuration and one of the write cache modules is missing,
match write cache boards with both controllers.
25 An unrecoverable memory system failure occurred. After restart, the controller
generates one or more Memory System Failure Event Sense Data Responses. Follow the
Repair Actions contained therein.
37 The Memory System Failure translator could not determine the failure cause. Follow
Repair Action 01.
38 Replace the indicated cache memory DIMM.
Table 49: Recommended Repair Action Codes (Sheet 3 of 8)
Code Description