[ovirt-users] Sparsifying VM disk not working

Wednesday, 11 January 2023

Hello,

i cannot get sparsifying to work in lastest oVirt 4.5.4 release (not that i have tried
with a previous release)

I have two Data domains connected to oVirt using iSCSI & NFS.

I created 2 testvm's  and 50GB thin provisioned qcow2 disks for each, made some temp
files, remove them and tried to sparsify, but it does not work.

Error i am getting is:
Error while executing action: Cannot sparsify Virtual Disk. Sparsifying is not supported
for QCOW2 disk testvm1_Disk1.

In virtual disk options i have enable, Bootable, incremental back and for one of the
images i enable discard for testing purposes.

What am i doing wrong?