HP A3550A - High Availability Disk Arrays Model 20 Storage Enclosure User Manual page 294

Table 6-10 Error Codes
Event code Event code name
0x901 Hard SCSI Error
0x903 Fan Removed
0x904 VSC Removed
0x905 Chassis
Overtemperature
0x906 Unit Shutdown
0x907 Controller Firmware
Panic
0x908 Hardware Fault - Cache
Disabling
0x909 Cache Dump Failed
0x90A Assign Fails - Cache
Dirty Unit
0x90B Controller Cannot
Initialize Cache
0x90C Cache Image Exceeds
Memory Size
0x90D BBU Removed
0x90E BBU Failed
0x90F Cache Recovered With
Errors
6-46 Unsolicited Event Log
Description
An abnormal SCSI bus or disk drive event was detected and
could not be cleared through retry operations.
A fan pack has been shut down or removed from the system.
A VSC (power supply unit) has been shut down or removed
from the system.
A chassis overtemperature condition has been detected, and
the SP will attempt corrective action.
The logical disk unit of which this disk module is a member
has been shut down and can no longer be accessed by the
host.
A fatal firmware (SP microcode) error occurred; as a result, the
microcode reloaded and restarted the SP. This message is
logged after the restarted session completes its initialization.
Some hardware condition has caused the SP to disable the
cache. The problem might be:
• BBU is not ready (not present and fully charged)
• One or more vault disks is missing or being rebuilt
• Fan fault occurred
• SP failed
A fault occurred but the SP cannot dump the cache to the
vault drives, most likely because two or more cache vault
disks are missing or have failed.
The SP cannot assign this unit, because it is marked as
having cached data outstanding, and the controller has no
access to the data.
A hardware or software failure occurred when the SP
attempted to initialize a new cache image.
This SP is incapable of loading the saved cache data image
due to insufficient cache memory size.
The Battery Backup Unit in this disk array has failed or been
removed.
The Battery Backup Unit in this disk array has failed its
internal self-test.
A nonmirrored cache recovery was attempted but failed to
recover the cache pages for some cached LUNs. It does not
apply to a disk array with two SPs.