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Investigating Problems with Disks
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Topic starter
I have a RAID 5 like this:
Bay 1: 3TB - i/o errors - Data and parity disk - predicted failure
Bay 2: 3TB - no errors - Data and parity disk
Bay 3: 3TB - no errors - Data and parity disk
Bay 4: 3TB - no errors - Data and parity disk - out of sync
Rebuilding has failed. I want to replace Bay 1. Can I do that without data loss?
Thanks!
Posted : 15/09/2017 12:45 pm
No you cannot replace disk 4, if the rebuild has failed.I am guessing that either bay 1 is failing to read, so cannot help rebuild bay 4, or bay 4 also has a problem and is not rebuilding.
Either way, you need to back up, then replace the disk, create a new RAID 5 volume and restore.
One idea is to "validate" the volume and see if it can validate. But in any case, start backing up now.
Posted : 15/09/2017 4:22 pm
Topic starter
Thanks.
Posted : 13/10/2017 4:23 pm
