Promise Technology EX8650 Managing Logical Drive Problems, Identifying a Critical Logical Drive

SuperTrak EX Series User Manual

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.

Managing logical drive problems includes the following actions:

•Identifying a Critical Logical Drive (page 68)

•Rebuilding the Logical Drive (page 69)

•Finding the Failed Physical Drive (page 70)

•Identifying an Offline Logical Drive (page 70)

Identifying a Critical Logical Drive

A critical logical drive has lost its fault tolerance but the logical drive can still read and write data.

•RAID 1, 5, 10, and 50 logical drives go critical when one physical drive fails.

•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.

When you boot your system, the SuperTrak BIOS screen informs you if there is a critical logical drive.

Figure 5. SuperTrak BIOS screen, logical drive critical

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