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Physical Drive Problems
Physical Drive Offline
Check the drive for:
•
PFA Condition – Caused by a bad block or sector.
See ―Clearing Stale and PFA Conditions‖ on page 143 (ASUS Storage
Management) or page 223 (CLU).
•
Stale Configuration – Caused by obsolete array information on the physical
drive. Identify the disk array to which the physical drive belongs. Then delete
the disk array. See ―Deleting a Disk Array‖ on page 154 (ASUS Storage
Management) or page 229 (CLU).
If the error condition remains on the physical drive, clear the error condition.
See ―Clearing Stale and PFA Conditions‖ on page 143 (ASUS Storage
Management) or page 223 (CLU).
Physical Drive Not Usable
This condition occurs when you have a missing or defective SAS cable between
the ASUS Storage subsystem and an ASUS DS300j expansion unit.
Physical Drive Failed
When physical drive status shows failed, the physical drive cannot be repaired.
You must replace the failed drive.
Physical Drive Fails during Migration
ASUS Storage has two methods for migrating a disk array:
•
DDF – The default setting. Slower but reliable
•
NVRAM – An optional setting that requires special access. Faster but risks
data loss
Normally, RAID level migration is done under the default Disk Data Format (DDF)
setting. If a physical drive or the controller fails during migration, the disk array
goes critical, and you can rebuild it. Migration under DDF can take up to several
hours depending on the number and size of the physical drives and data input/
output activity.
ASUS Storage supports disk drive hot-swapping. To avoid hand
contact with an electrical hazard, do not remove more than one
drive carrier a time.
Caution
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Chapter 10: Troubleshooting
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