Symptom
A drive error is present on the storage system, but the front panel warning LED light is still green.
Diagnosis
The front LED remains green because the Logical Drive (LD) automatically rebuilds after the drive fails. During the rebuilding process, and once it completes successfully, the front LED stays green.
Here is an example of the event log:
[A ] 220A0188 Name: Pool-02 Id: 7C7C885F678228D3 Pool Name: Logical_drive_1 ID:6C3EF1C7 Logical Drive ERROR: CHL:12 ID:45 (JBODId:0 SlotNum:46) Drive Failure
[A ] 020A8305 Name: Pool-02 Id: 7C7C885F678228D3 Pool Name: Logical_drive_1 ID:6C3EF1C7 Logical Drive INFORM: Starting Rebuild (JBODId:FFFF SlotNum:34)
[A ] 020A8402 ID:6C3EF1C7 Logical Drive INFORM: Rebuild of Logical Drive Completed
Explanation
This behavior is by design. During the LD rebuilding process or after it completes successfully, the LED will remain green. If the rebuilding process fails, the light will turn amber (red).