The blocked state is reserved for RAID level-0 logical devices that are part
of the same disk group
as one or more of the following:
If a physical drive in such a disk group fails, the RAID level-0 logical devices
enter the failed
state, while the other logical devices enter the degraded state.
After you replace the failed physical drive, a rebuild operation starts and
reconstructs the data
stored in any RAID level-1 or level-5 logical devices; at the same
time, the RAID
level-0 logical devices enter the blocked state. RAID level-0 logical devices
cannot be rebuilt,
since they do not contain redundant data.
After the rebuild operation is completed, you can unblock the RAID level-0
logical devices and
access them once again. However, the logical device might contain damaged data.
You must
re-create, reinstall, or restore the data from the most recent backup disk or
tape to the RAID
level-0 logical device.
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