One or more logical devices contain a bad stripe: controller [number], logical device [number]

Explanation:

The Bad Stripe Table (BST) provides a means of recovering most data on a logical drive after multiple hardware errors prevent access to a logical device stripe. An entry in the BST indicates that the data contained in a stripe has been lost.

While many conditions can produce a Bad Stripe Table entry, the most common cause is an error accessing one of the stripe units within a stripe of a degraded logical device. A single stripe unit failure is correctable and recoverable but two or more failures within the same redundant RAID stripe are not.

For example, in a degraded RAID-5 disk group, in which one of the drives in the disk group is failed, a stripe will be marked bad with an entry in the BST if a non-recoverable media error occurs when accessing one of the other drives of the disk group.

Once an entry is logged in the BST, the controller will return an error code to the driver whenever the host system tries to access a Logical Block Address (LBA) within the affected stripe. This is one immediate indication that some part of the logical device is unusable.

Note: It is not possible to correlate the bad stripe with a specific file in the operating system.

Action:


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