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Forum Discussion
shaneswartz
Nov 29, 2025Aspirant
ReadyNAS Ultra 6 Plus No volume after replacing failed drive
I have a ReadyNAS Ultra 6 Plus (RNDP600U) with 6 x 3TB drives. It is running RAIDiator version 4.2.31. I thought that I had created a backup of the media and backup volumes, but either I did not...
shaneswartz
Nov 29, 2025Aspirant
Correcting one paragraph:
Old paragraph:
Why would sdb3 still be trying to rebuilding when the ReadyNAS believes it is done and operational according to the information seen in "RAIDar"? The logs state the sync of drive 2 the Should I pull out /dev/sdb (Drive #2) and put it back in to restart the rebuild?
New paragraph:
Why would sdb3 still be trying to rebuilding when the ReadyNAS believes it is done and operational according to the information seen in "RAIDar"? The logs state the sync of drive 2 was started, the system was up a little later, but then it could not see the volume. Pulling drive #2 (/dev/sdb) out and putting it back in did not restart the sync. The drive still shows as operational and working in RAIDar.
StephenB
Nov 29, 2025Guru - Experienced User
shaneswartz wrote:Why would sdb3 still be trying to rebuilding when the ReadyNAS believes it is done and operational according to the information seen in "RAIDar"? The logs state the sync of drive 2 was started, the system was up a little later, but then it could not see the volume. Pulling drive #2 (/dev/sdb) out and putting it back in did not restart the sync. The drive still shows as operational and working in RAIDar.
Hard to say what happened, but I think I would have let the array rebuild in tech support mode, and not pull and reinsert the drive.
Have you tried to mount md2?
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