Backup format raw - CLI

[fred-ph]

Hi there,

I try to integrate 3rd party backup software (kopia) with proxmox. However the uncompressed file format of Proxmox integrated backups does not deduplicate well.
I am aware of proxmox backup server but do not want to have one more backup solution and would like to stick to the idea having everything on kopia even if it is more complicated to setup.

I am trying to make a low-level backup of the raw disk files (not OVA format). I identified two scenarios:
- Make a snapshot of the virtual machine, backup all the vm files on storage and release the snapshot
- virsh/qemu tools to do a backup (virsh is not used/supported by Proxmox; and I did not found the right qemu tools yet)

What do you think about that, any advice?

Fred

 

[bbgeek17]

- Make a snapshot of the virtual machine, backup all the vm files on storage and release the snapshot

If your storage supports it, create a snapshot, then a clone from the snapshot, mount it to the backup server, and do the backup.
If your storage supports snapshots integrated natively in PVE - even better. You can delegate snapshot creation to PVE for consistent execution across all VM disks.

Good luck. I am sure the community would love to hear your success story at some point.

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[fred-ph]

Hi @bbgeek17, thank you for your answer.
This also sounds like the best option for me. I just don't have a plan for a restore if I choose this solution. I guess:
1. Recreate the filesystem
2. Create a virtual machine and find a way to point it to that filesystem+
3. Test-launch the vm.

Yes I plan to provide a feedback around my findings bot to kopia and Proxmox communities. Just hope I got enough time to go to the end of the project...

 

[bbgeek17]

2. Create a virtual machine and find a way to point it to that filesystem+

You can also include in your backup the corresponding VM config file:

ls -1 /etc/pve/qemu-server/
101.conf
102.conf
103.conf
110.conf
111.conf
112.conf
113.conf

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox