HP A3550A - High Availability Disk Arrays Model 20 Storage Enclosure User Manual page 285

Condition/Symptom
Array fails power-up test at letter "W"
and displays message "Storage system
failure - contact your HP service
representative."
The SP620 SCSI SP displays a
message that a valid microcode image
could not be found on any data base
drives.
Garbage on terminal display
Array powering up but no display or
garbage on terminal.
Subsystem fault during power-up
sequence.
Subsystem fault during power-up
sequence.
8-12
Solution
Microcode for the SP(s) is loaded from specific disks
within the array. If the disk modules were unloaded for
installation purposes, they may have been reinserted in
the wrong slots and SP microcode is not available to be
loaded. A slot number label is affixed to each disk module
at the factory. Match the slot number label on the disk
module to the appropriate slot in the array.
Check for the following terminal configuration:
Datacomm config
Baud rate 9600
Parity/Databits None/8
Terminal config
Termmode EM100
Check that the correct RS-232 cable, part number
5061-5003, is being used.
Also check the internal address cable for proper
orientation to connector.
A failed CRU should not stop the initial power-up tests.
Power-up should complete and the faulted CRU should
be indicated by an CRU FAULT LED. Change the faulted
CRU after power-up tests complete.
BBU may have discharged during power down.
Subsystem fault will be indicated until BBU is fully
recharged. BBU recharge message can be found in
Unsolicited Event Log in Grid Manager.