Hello,
I am wondering if anyone else is experiencing this issue.
Short facts about our system:
- NetApp AFF220 IP-Metrocluster (ONTAP 9.6 P3)
- VMware ESXi 6.7 U3
- Thin provisioned LUNs with space allocation disabled
Problem is:
- Space reclaim is not working properly
How the issue gets visible:
- When I use storage vmotion to migrate a machine with approx 50% unique data from A to B, no space is getting free on the source volume
How I can work around this problem:
- Enable space allocation on this LUN, then suddenly the space will get reclaimed
Why this is weird:
- We never created our LUNs other than as recommended by NetApp. Plus we need space allocation as a protection function if the LUN runs out of space.
Is anyone else experiencing this problem?
Best regards and thanks
Alex
