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Controller beep codes

Q: My RAID controller is emitting a loud beep. What does this mean?

A: See the following table for a list of LSI MegaRAID beep codes.

Event

Virtual Drive State

Beep Code

RAID 0 loses a drive

Offline

3 seconds on and 1 second off

RAID 1 loses a mirror drive

Degraded

1 second on and 1 second off

RAID 1 loses both drives

Offline

3 seconds on and 1 second off

RAID 5 loses one drive

Degraded

1 second on and 1 second off

RAID 5 loses two or more drives

Offline

3 seconds on and 1 second off

RAID 6 loses one drive

Partially Degraded

1 second on and 1 second off

RAID 6 loses two drives

Degraded

1 second on and 1 second off

RAID 6 loses more than two drives

Offline

3 seconds on and 1 second off

A hot spare completes the rebuild process and is brought into a drive group

N/A

1 second on and 3 seconds off


Be aware that replacing a drive in a redundant RAID set does not automatically disable the alarm, and the red fault light may still be lit while the rebuild is in progress. The alarm and fault light cease when the rebuild completes, when the array is no longer degraded. The array status should read as “Optimal” if the replacement and rebuild are successful.

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