Disk passthrough and snapshots

S

sargenthp

New Member
Aug 25, 2025
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Hello,

I was wondering if there is a way keep snapshots enable with a passthrough disk? I do not want the passthrough disk to have a snapshot, but I would want the qcow disk (OS) to. I attempted to map the passthrough disk with the snapshot=0 option, but seems the snapshot utility ignores it and will not let me do the snap.

Thanks!
 
Cloning has an issue as well. I hope there is an option to ignore RDM/Passthrough disks for snapshots, backups, and cloning.

I think this is the only thing holding us back from adopting Proxmox as our VMWare replacement.
 
I have tried adding in snapshot=0,backup=0,replicate=0

qm obviously checks for passthrough disks, and blocks the ability of snapshots of other disks... Would it be that hard to check for these options on the attached passthrough disks? As long as all passthrough disks has these features disabled, still allow the other disks to snap, clone, and backup.
 
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