[PVE-User] Volume chain snapshotting

[g.husson_proxmox-pve-user at liberasys.com]

Hello Mark.

1. I may be wrong but I think that if your LVM storage has been 
initialised as THICK provisioning, it should be allright.

2. The best summary I have red about snapshots over iSCSI is : 
https://kb.blockbridge.com/technote/proxmox-qcow-snapshots-on-lvm/

Best regards,
Gautier Husson - Liberasys.


Le 24/11/2025 à 15:42, Mark Schouten via pve-user a écrit :
> Hi all,
>
>
>
> Since PVE9, we have Volume Chain Snapshotting. The documentation states:
> 'Enabling or disabling this flag only affects newly created virtual disk
> volumes.’
>
>
>
> Two questions:
>
> 1: Are there plans to make it possible to convert existing LVM Backed
> storages with images that already exist? Or is there an idea how we can
> convert existing images?
>
> 2: Why is this in status ’Technology Preview’? What are the risks that
> are in the back of the heads of the developers? Or is it mainly ’there
> might be bugs, but we expect dataconsistency to be OK’?
>
>
>
> Thanks,
>
>
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