Compex Systems Advanced SerialRAID Adapters SA33-3285-02 - Manual (Page 449)

SRN Problem Possible Causes
49000 Description: An array is in the Degraded state. A disk drive might not be
available for one of the following reasons:
v The disk drive has failed.
v The disk drive has been removed from the subsystem.
v An SSA link has failed.
v A power failure has occurred.
Action: If the SSA service aids are available, run the Link Verification
service aid (see “Link Verification Service Aid” on page 383) to find any
failed disk drives, failed SSA links, or power failures that might have
caused the problem.
If you find any faults, go to the Start MAP (or equivalent) in the enclosure
service information to isolate the problem, then go to 37 on page 473 of
MAP 2324: SSA RAID to return the array to the Good state.
If the SSA service aids are not available, or the Link Verification service
aid does not find any faults, go to “MAP 2324: SSA RAID” on page 454 to
isolate the problem.
v A RAID-5 array causes this
SRN if a disk drive is not
available to the array, and a
write command is sent to the
array.
v A RAID-1 or RAID-10 array
causes this error if the array
has one or more degraded
mirrors. A RAID-1 or
RAID-10 mirror becomes
degraded when one disk
drive in the mirror pair is not
available, and a write
command is sent to the
array.
49100 Description: An array is in the Exposed state. A disk drive can become
not available for several reasons:
v The disk drive has failed.
v The disk drive has been removed from the subsystem.
v An SSA link has failed.
v A power failure has occurred.
Action: If the SSA service aids are available, run the Link Verification
service aid (see “Link Verification Service Aid” on page 383) to find any
failed disk drives, failed SSA links, or power failures that might have
caused the problem.
If you find any faults, go to the Start MAP (or equivalent) in the enclosure
service information to isolate the problem, then go to 37 on page 473 of
MAP 2324: SSA RAID to return the array to the Good state.
If the SSA service aids are not available, or the Link Verification service
aid does not find any faults, go to “MAP 2324: SSA RAID” on page 454 to
isolate the problem.
v A RAID-5 array causes this
error code if a disk drive is
not available to the array.
v A RAID-1 or RAID-10 array
causes this error if the array
has one or more exposed
mirrors. A RAID-1 or
RAID-10 mirror becomes
exposed when one disk drive
in the mirror pair is not
available to the array.
Chapter 18. SSA Problem Determination Procedures 429
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