Dell and UCPE-900 Computer Hardware User Manual


 
Rebuilding a failed physical disk
Issue: Rebuilding a physical disk that is in a failed state.
Corrective
Action:
If you have configured hot spares, the PERC card automatically tries to use one of
the hot spares to rebuild a physical disk that is in a failed state. Manual rebuild is
necessary if no hot spares with enough capacity to rebuild the failed physical disks
are available. You must insert a physical disk with enough storage in the subsystem
before rebuilding the physical disk.
NOTE: You can use the BIOS Configuration Utility (<Ctrl> <R>) or Dell OpenManage storage
management application to perform a manual rebuild of an individual physical disk. For information
on rebuilding a single physical disk, see Performing A Manual Rebuild Of An Individual Physical Disk.
Virtual disk fails during rebuild using a global hot spare
Issue: A virtual disk fails during rebuild while using a global hot spare.
Description: The global hot spare reverts to Hotspare state and the virtual disk is in Failed state.
Virtual disk fails during rebuild using a dedicated hot spare
Issue: A virtual disk fails during rebuild while using a dedicated hot spare.
Description: The dedicated hot spare reverts to Ready state and the virtual disk goes to Failed
state.
Physical disk fails during reconstruction on redundant virtual disk
Issue: A physical disk fails during a reconstruction process on a redundant virtual disk that
has a hot spare.
Corrective
Action:
The dedicated hot spare reverts to Ready state and the virtual disk goes to Failed
state.
Virtual disk fails rebuild using a dedicated hot spare
Issue: A virtual disk fails during rebuild while using a dedicated hot spare.
Description: The dedicated hot spare is in Ready state and the virtual disk is in Failed state.
Physical disk takes a long time to rebuild
Issue: A physical disk is taking longer than expected to rebuild.
Description: A physical disk takes longer to rebuild when under high stress. For example, there is
one rebuild I/O operation for every five host I/O operations. You cannot add a
second virtual disk to a disk group while the virtual disk in that disk group is
undergoing a rebuild. The firmware does not allow you to create a virtual disk using
the free space available in a disk group if a physical disk in a virtual disk group is
undergoing a rebuild operation.
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