ONTAP Discussions
ONTAP Discussions
Hi all - If someone could help with this question would be awesome.
Here's our setup.
The issue:
We're seeing very very slow (sometimes none at all) space reclaimation on the volume after the logs are purged. We see the space come back in Windows immediately.
For example, on one log volumes right now we have 200GB of data visible in Windows.
On that 800GB NetApp volume, NetApp shows 125GB available, 470gb Data used, and 204GB of snaps = 674GB total.
The controllers on the NetApps aren't being smashed (sitting around 50% or lower).
Is this descrepency due to the space reclaim in the background being very slow? or could there be some other issue? Is there a way to see the progress of the reclaim or expedite the reclaim process?
Any help would be great.
We've logged a call but it'll probbaly move slowly.
Lun
Volume
Pleas explain
This is likely related to SCSI UNMAP rather than space reclamation, I believe small in size deletions are done asynchronously where as large delations are done synchronously due to performance impacts but depends on Windows and the SCSI unmap commands sent.
Does deleting a large file say 20 - 30 GB result in the same delays to free up space ?