@rzr
Edit - If @olivierlambert wants to make this post its own thread im ok with that.
Updated home lab and live convert to qcow2 seems to work.
Process was a little long 30ish min. but it worked and did not fail.
Kubuntu 26.04 lts beta
[image: 1776344620956-2be7d90a-fee8-4e01-80e7-4d123e9c92b7-image.jpeg]
Tried a windows vm got error - 2026-04-16T13_04_47.720Z - XO.txt
Gives VDI has CBT enabled...
Windows 11 vm.
[image: 1776344867734-screenshot-2026-04-16-090725.png]
From backup job...
[image: 1776344993661-screenshot-2026-04-16-090928.png]
Just tried another vm that was powerd off. regular ubuntu 24.04 successfull...
[image: 1776346046673-screenshot-2026-04-16-092513.png]
[image: 1776346053871-screenshot-2026-04-16-092524.png]
[image: 1776346061683-screenshot-2026-04-16-092543.png]
@henri9813
Thanks.
The old snapshots are being removed as the total never increases beyond 16, so when a new snapshot is added, the old one is removed.
Different use cases: Ceph is better with more hosts (at least 6 or 7 minimum) while XOSTOR is better between 3 to 7/8.
We might have better Ceph support in the future for large clusters.