|Applies To||RSA Product Set: Security Analytics, NetWitness Logs & Network|
RSA Product/Service Type: SA Archiver, SA Concentrator, SA Packet Decoder, SA Log Decoder,
RSA Version/Condition: 10.4.x, 10.5.x, 10.6.x, 11
|Issue||In certain circumstances, failed or bad physical disk drives in an appliance chassis or DAC will not respond to MegaCli64 commands. |
This means that if a drive is failed or bad, you cannot use the MegaCli64 command to flash the LED on the disk drive to identify it for removal.
|Tasks||The tasks required for these steps are:|
|Resolution||To locate a specific drive that is non-responsive to MegaCli64 flash commands, flash the drive on either side or to one side of the drive in question.|
Example of Bad/Failed Disk
In the example above, the drive on RAID Adapter 1, Enclosure 29, Slot 2 is bad and does not respond to flash commands.
If you are not sure which DAC is Enclosure 29, try to flash Enclosure 29, Slot 1 and Enclosure 29, Slot 3 with the commands below.
These two commands start the LEDs flashing on the drives to the right and left of the bad drive thus indicating the location of the bad drive.
After replacing the drive, confirm the status of the drive by flashing it, and by running the nwraidutil.pl script to verify that the drive is in an optimal state and rebuilding.
Example of Rebuilding or Optimal Drive After Replacing Failed Drive
Once the drive has been identified and replaced, disable the flashing LEDs with the following command: