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2.4 RAID VOLUME STATUS

A RAID volume can be in any one of the following statuses.

STATUS MEANING

Good All disks are currently functioning as normal.

Reduced

For RAID levels that provide data protection, one or more disks have failed but the data

is still available via the RAID protection. The failed disk should be replaced as soon as

possible to avoid loss of data.

Rebuilding

A failed disk drive has been replaced and the data is being regenerated on the

replacement disk. When complete, the RAID Group will return to Good status.

Resynchronizing

An error has occurred and the RAID level is being regenerated. When complete, the

RAID Group will return to Good status.

Failed

One or more disks have failed and RAID cannot regenerate the data. The minimum

number of failures required to reach this state depends on the RAID level:

z RAID 0, Concatenated, Contiguous: Single disk failure.

z RAID 1, 10, and 5: Two disk failure.

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