HP StorageWorks XP12000 Configuration Manual page 56

Error Condition
The disk array performs a
self reboot because the disk
array was busy or it logged a
panic message.
The disk array responds "Not
Ready" or the disk array has
displayed "Not Ready" and
timed out.
The host detects a parity
error.
The host hangs or devices are
declared and the host hangs.
58
Recommended Action
Reboot the host.
Contact HP.
Check the HBA and make sure it was installed properly.
Reboot the host.
Make sure there are no duplicate disk array TIDs and that disk array
TIDs do not conflict with any host TIDs.
HP StorageWorks Disk Array XP Operating System Configuration Guide: HP-UX