RBD: strange second disk on few VMs

[Florent]

Hi everyone,

I use RBD as backend storage for my VMs.

All VMs are single disk, but on a few ones, I can see a second disk (disk-2) in my RBD pool, which have strange sizes : 4.49GB when primary disk is 32GB, 8.49GB when primary disk is 64GB, etc.

And I have some disk-2 related to VM IDs that no more exists.

Is it related to snapshots or not ?

What could be this second disk ?

Thank you.

 

[Sakis]

I guess these are disks with ram. The ram your kvm was using when you took snapshots.

 

[Florent]

I guess these are disks with ram. The ram your kvm was using when you took snapshots.

Yes that's an idea