User`s guide

Chapter 8. Troubleshooting and Service Information
EK–SWRA2-IG. C01 8–9
Table 8–4 Troubleshooting Techniques (continued)
Symptom Possible Cause(s) Action(s) to Take
Drive has a WOL
Status (Cont)
Shelf failure occurred
resulting in the need
for multiple rebuild
operations to be
initiated. (The con-
troller can only re-
build one disk at a
time. The remaining
failed disks are left
with a WOL status.)
• After the rebuild completes, fail
the drive in WOL state using the
on-line utilities. Use the manual
rebuild procedure, described in
Chapter 7, on the drive. Continue
this operation for each drive in
the WOL state.
• Multiple rebuilds are queued and
will be initiated by the controller
one by one.
Auto Rebuild Not
Started on Re-
placement Drive
Disk replaced while
rebuild in progress
on another drive.
Wait for completion of current re-
build operations. Start a manual
rebuild on the replacement drive.
Drives not Seen by
the Controller
• SCSI cable is not
connected.
• Incorrect SCSI
termination
• Duplicate SCSI IDs
on bus.
• Defective drive or
drive SBB.
• Improper insertion
of a drive SBB.
• Defective controller
SCSI channels
• Check SCSI cable(s) between the
RAID controller and shelves.
• Check that shelf terminators are
properly inserted.
• Check drive SCSI ID settings if
not using StorageWorks shelves.
• Replace with new drive SBB.
• Remove and reinsert the drive
SBB.
• Replace the controller if needed.