Instruction Manual

Troubleshooting 145
Rebuilding a physical
disk after one of them is
in a failed state.
If you have configured hot spares, the PERC H700 or
PERC H800 card automatically tries to use one of them 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. You can use the BIOS
Configuration Utility
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" on page 111.
A virtual disk fails during
rebuild while using a
global hot spare.
The global hot spare goes back to Hotspare state and the
virtual disk goes to Failed state.
A virtual disk fails during
rebuild while using a
dedicated hot spare.
The dedicated hot spare goes to Ready state and the
virtual disk goes to Failed state.
A physical disk fails
during a reconstruction
process on a redundant
virtual disk that has a
hot spare.
The rebuild operation for the
inaccessible physical disk
starts automatically after the reconstruction is completed.
A physical disk is taking
longer than expected to
rebuild.
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.
Table 9-4. Physical Disk Failure and Rebuild Issues
(continued)
Issue Corrective Action
PERC7.2_UG.book Page 145 Thursday, March 3, 2011 2:14 PM