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Forum Discussion
iSCSI LUNs deleted but space not freed up
Firmware: 6.6.0 Attached as a replication target for backup storage (UniTrends). I show LUNs totalling 27TB out of a usable 36TB (48 raw). However, free space is reported as 1.91 TB and I'm receivi...
Thanks. Not using snapshots. iSCSI LUNs are all thick and LUNs total capacity is 27.25 TB of a 36TB ReadyNAS. Still only have 1.9 TB available. Logs on their way momentarily.
Your email did not have the logs zip attached to it.
When you create a thick LUN the space for the full capacity of the LUN is consumed. So deleting a LUN and creating a new one with the same space won't end up freeing up space.
Sorry - I'm not stating the issue clearly. Maybe this will clear things up.
1. I have 27 TB of thick LUNs in place.
2. There is nothing else on the NAS other than a basically empty Home folder.
3. Prior to creating the 27 TB of LUNs, I'd created over 30 TB worth of LUNs. I deleted all of them to re-configure with a 'clean slate'.
4. Given the NAS has usable 36 TB of storage installed (12- 4TB drives RAW), I should still have 9 TB available for use. Today, I have 3.5 GB available.
5. It seems that when old LUNs were deleted, the space was not de-allocated/made available for use.
I've read where several others have had this issue but each thread addressing the issue ends with a PM request and a solution is never displayed. Responses from the original poster indicate the problem is being resolved but not showing how.
You could try running a balance. That's not guaranteed to work, but it can help reclaim free space.
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