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Forum Discussion
ReadyNAS 214 - Can I simply add a 4th drive, or is there something I have to do to prep?
I've been running 3 drives in my 4 bay RN214. Drives are all WD RED 4TB internal hard drives. Old drives were 64MB cache, the new drives are 256MB cache. RAID 5 X-RAID The other day I had...
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I think the 4th drive you have added have been in prep for a resync and froze before you unplugged the power. That is why it is being detected as part of the RAID now and you are getting a degraded status. The resync usually happens as well if a power outage or unexpected shutdown has been detected by the NAS.
I think the best thing to do is let the resync finish and then re-add the 4th drive, let it resync and run volume maintenance on your NAS. This way the space calculation would be corrected.
HTH
Was the warning about your data volume or the root (OS) partition? A too-full OS partition can cause that kind of issue. If it was about the OS partition, it would have been worded as "Volume: System volume root's usage is XX%. This condition should not occur under normal conditions. Contact technical support."
If it was the data partition, your "deleted" data is likely still in snapshots, still taking up space. And if you did a defrag afterward thinking that would help, it could do the opposite. because the newly moved data needs space other than the old snapshot versions of the same files. If this does not apply, try doing a scrub.
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