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Forum Discussion
Solved
Volumes now showing inactive after reboot
on one of our ReadyNAS 4312 after a reboot all the disk in the Raid 5 are showing as inactive. nothing has been written to the NAS. Isa there a way to bring the drives on line and recover the data ...
ATA errors are not always due to the drive. SMART can't determine if it's the hardware on the drive side, the NAS (PC, etc.) side, or even another drive on a companion SATA bus. I had an EDA500 on which the eSATA cable became loose, and the result was dozens of ATA errors before the volume was corrupted and went read-only.
Sandshark wrote:
ATA errors are not always due to the drive.
Agreed. And a non-zero ATA count doesn't necessarily mean the drive needs to be replaced. I've seen cases where drive X has failed to respond to a command, and an ATA error was then reported on Drive Y. I'm thinking that the SATA bus ended up hung, and that the OS couldn't figure out what drive was at fault.
In this case PeteC2017 says there was one failed drive though, so I do agree that looking at the smart stats (and the other logs) was the right next step. I said that earlier in the thread.
In any event, the posts are quite stale (2 months old), so I don't why the mod decided to reply now.
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