Storage replication and VSS

[mdenadal]

Hello,
I'm using zfs storage replication across nodes with great success.

Is it possible to disable "qm guest fsfreeze-freeze" during replication?

I have performance issues replicating Windows VMs using VSS enabled services (especially SQL Server).
I know this can introduce consistency issues but the performance drop caused by VSS quiesce in some cases are unacceptable.

Thanks
Massimo

 

[dcsapak]

this is currently not configureable, but you could not use the qemu-guest-agent

i am not sure, but maybe there is a way to tell windows not to do vss when the guest agent requests it?

 

[mdenadal]

Hi Dominik,
thanks for you answer.
Sure, I can disable the agent, but this is not a solution.
I need to take "quiesced" (fsfreeze-freezed) snapshot during low pressure work hours.
Disabling the agent I can't take quiesced snapshot anymore.

Do you think I can ask a feature to disable fsfreeze during replication for a next release?

 

[dcsapak]

you can open a feature request, but i can make no promises if and when it will be done https://bugzilla.proxmox.com/

 

[mdenadal]

Ok, I'll open a feature request.
Thank you.

 

[jsterr]

Is this feature available in 2023?