[pve-devel] [PATCH-SERIES v8 pve-storage/qemu-server] add external qcow2 snapshot support

[Fabian Grünbichler]

> DERUMIER, Alexandre <alexandre.derumier at groupe-cyllene.com> hat am 14.07.2025 10:42 CEST geschrieben:
> 
>  
> >>6. it's fairly easy to accidentally create qcow2-formatted LVM
> >>volumes, as opposed to the requirement to enable a non-UI storage
> >>option at storage creation time for dir storages, we might want to
> >>add some warning to the UI at least? or we could also guard usage of
> >>the format with a config option..
> 
> Personnaly, this don't shock that's much
> 
> the external-snapshot option is to distinguished between
> internal|external snapshot.
> 
> you can also "accidentally" create a qcow2 file instead a raw file on
> dir storage.

yes, but that one has been tested for a while, the LVM one is new and
still experimental, but that is not obvious from the UI.

> so I think that a warning in the UI is fine enough if qcow2 format is
> selected.

would probably need to go into a few places then (allocating a disk,
moving it, restore of backup - at least?)