ACS Orpanned KVM snapshot

[Antoine Boucher <an...@haltondc.com.INVALID>]

Greetings,

I have various QEMU/KVM snapshots on my storage pools that CloudStack does not seem to recognize. I assume this is the result of ultimately failed snapshots for various reasons. If I run qemu-img info on the "snapshot" and on what ACS believes is the VM's root disk, it clearly shows the backing file. Assuming I backup both files, should or could I perform a qemu-img commit on this snapshot to flatten it back to its parent, and then rename the parent to the snapshot's UUID to restore it to a clean volume?



Regards,

Antoine

Re: ACS *Orphaned KVM snapshot

[Antoine Boucher <an...@haltondc.com.INVALID>]

I figured it out - I used emu-img convert -O qcow2 ….



Antoine Boucher
AntoineB@haltondc.com
[o] +1-226-505-9734
www.haltondc.com

“Data security made simple”





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> On Oct 25, 2025, at 3:37 PM, Antoine Boucher <an...@haltondc.com> wrote:
> 
> Or is it the other way around - which would make more sense?
> 
> 
> 
>> On Oct 25, 2025, at 3:14 PM, Antoine Boucher <an...@haltondc.com> wrote:
>> 
>> Greetings,
>> 
>> 
>> 
>> 
>> I have various QEMU/KVM snapshots on my storage pools that CloudStack does not seem to recognize. I assume this is the result of ultimately failed snapshots for various reasons. If I run qemu-img info on the "snapshot" and on what ACS believes is the VM's root disk, it clearly shows the backing file. Assuming I backup both files, should or could I perform a qemu-img commit on this snapshot to flatten it back to its parent, and then rename the parent to the snapshot's UUID to restore it to a clean volume?
>> 
>> 
>> 
>> Regards,
>> 
>> Antoine
>> 
>> 
>> 
> 

Re: ACS Orpanned KVM snapshot

[Antoine Boucher <an...@haltondc.com.INVALID>]

Or is it the other way around - which would make more sense?



> On Oct 25, 2025, at 3:14 PM, Antoine Boucher <an...@haltondc.com> wrote:
> 
> Greetings,
> 
> 
> 
> 
> I have various QEMU/KVM snapshots on my storage pools that CloudStack does not seem to recognize. I assume this is the result of ultimately failed snapshots for various reasons. If I run qemu-img info on the "snapshot" and on what ACS believes is the VM's root disk, it clearly shows the backing file. Assuming I backup both files, should or could I perform a qemu-img commit on this snapshot to flatten it back to its parent, and then rename the parent to the snapshot's UUID to restore it to a clean volume?
> 
> 
> 
> Regards,
> 
> Antoine
> 
> 
>