SRN Problem Possible Causes
49950 Description:An array copy disk drive is missing. The array copy is
degraded. If the missing disk drive is restored to the network or
exchanged for a new disk drive, the copy rebuilds.A disk drive might not
be available for one of the following reasons:
vThe disk drive has failed.
vThe disk drive has been removed from the subsystem.
vAn SSAlink has failed.
vApower failure has occurred.
Action: Go to “MAP 2324: SSA RAID”on page 454.
Possible FRUs:
Device (100%)
(“Exchanging Disk Drives”
on page 319).
4A100 Description:The adapter cannot initialize a disk drive. The failing disk
drive might, or might not, be configured on this system.
Action: Run diagnostics in System Verificationmode to all pdisks.
If the diagnostics fail, exchange the pdisk for a new disk drive.
If the diagnostics do not detect a failing pdisk, use the Link Verification
service aid (see “Link VerificationService Aid”on page 383) to search for
disk drives that are not configured. Such disk drives are listed as *****.
Note: Other adapters in the SSAloop might also be listed as *****.
Exchange, for new disk drives, all pdisks that are not configured.
Possible FRUs:
Device (100%)
(“Exchanging Disk Drives”
on page 319).
4BPAA Description:Adisk drive at PAA cannot be configured, because its UID
cannot be read.
Action: If the SSAservice aids are available:
1. Run the Link Verificationservice aid (see “Link Verification Service
Aid”on page383) to find the failing device. The service aid lists the
device as *****.
2. Exchange the FRU for a new FRU.
If the service aids are not available:
1. Note the value of PAAin this SRN, then go to “Finding the Physical
Location of a Device”on page 409.
2. Exchange the FRU for a new FRU.
Possible FRUs:
Device (100%)
(“Exchanging Disk Drives”
on page 319).
50000 Description: The SSAadapter failed to respond to the device driver.
Action: Exchange the FRU for a new FRU.
Possible FRUs:
SSAadapter card (100%)
(“Removing and Replacing
anAdvanced SerialRAID
Adapter”on page 327).
50001 Description:A data parity error has occurred.
Action: Exchange the FRU for a new FRU.
Possible FRUs:
SSAadapter card (100%)
(“Removing and Replacing
anAdvanced SerialRAID
Adapter”on page 327).
434 User’s Guide and Maintenance Information
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