Snapshots vs Snapshots

[norsemangrey]

Confused? I know I am.

Being quite new to both Proxmox and ZFS there are a lot of concepts I don't have a good grasp on yet.

One of them are snapshots. From what I understand that they are incremental records of the change from you took the snapshot and the current state. ZFS has snapshot functionality and so does KVMs in Proxmox. So what if ZFS is used as the filesystem on the KVM drive(s). Does one make use of the other, is there a connection at all? Maybe someone can explain. I could not find any usable answer in the Proxmox documentation.

 

[guletz]

Hi,

Can you explain what do you understand about KVM snapshot?

Good luck / Bafta!

 

[norsemangrey]

Hi,

Can you explain what do you understand about KVM snapshot?

Good luck / Bafta!

The KVM live snapshots basically preserves the KVM virtual machine state at the point the snapshot is taken. I'm just wondering if there is a connection between the ZFS snapshot and the KVM snapshot when ZFS is used as the FS on the KVM drive.

 

[guletz]

The KVM live snapshots basically preserves the KVM virtual machine state at the point the snapshot is taken. I'm just wondering if there is a connection between the ZFS snapshot and the KVM snapshot when ZFS is used as the FS on the KVM drive.

Hi,

NO, these snapshots(zfs/KVM) are not corelatated. Anyway, if you use qcow2 format for KVM on top of zfs the performance will be not so good(COW over COW).
The best performance can be only using raw format on top of zfs.

Good luck / Bafta!