Promise Technology EX8650A User Manual
SuperTrak EX Series User Manual
68
Managing Logical Drive Problems
The most common logical drive problems are caused by physical disk drive
failure, resulting in a Critical or an Offline logical drive.
failure, resulting in a Critical or an Offline logical drive.
Managing logical drive problems includes the following actions:
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Identifying a Critical Logical Drive
A critical logical drive has lost its fault tolerance but the logical drive can still read
and write data.
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and write data.
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RAID 1, 5, 10, and 50 logical drives go critical when one physical drive fails.
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RAID 6 and 60 logical drives go degraded when one physical drive fails and
critical when two physical drives fail. You take the same action in either
case.
critical when two physical drives fail. You take the same action in either
case.
When you boot your system, the SuperTrak BIOS screen informs you if there is a
critical logical drive.
critical logical drive.
Figure 5. SuperTrak BIOS screen, logical drive critical