How to create a backup of passed through disks in Proxmox?

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PapaGigas

Member
Mar 18, 2023
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Hi,

I'm trying to create an image of each of the disks passed to a VM in Proxmox, and back it up to PBS, but I don't know how to use the client within PVE to achieve this goal.

The disks were passed through the configuration file like this:

Code: 
scsi1: /dev/disk/by-id/ata-KINGSTON_SA400S37960G_50026B7381F70F5C,size=937692504K,serial=50026B7381F70F5C
scsi2: /dev/disk/by-id/ata-KINGSTON_SA400S37960G_50026B7381F7253A,size=937692504K,serial=50026B7381F7253A
scsi3: /dev/disk/by-id/ata-KINGSTON_SA400S37960G_50026B7784EF8566,size=937692504K,serial=50026B7784EF8566
scsi4: /dev/disk/by-id/ata-KINGSTON_SA400S37960G_50026B7784B1D8B2,size=937692504K,serial=50026B7784B1D8B2

Can anyone help me solve this problem please? Thanks in advanced! ;)
 
To be more precise, I need to be able to backup the scsi1 disk every Monday morning, scsi2 every Tuesday morning, scsi3 every Wednesday morning and scsi4 every Thursday morning, without having to do a full VM backup (which takes considerably longer).

PS - I hope I was more clear about what I want/need from proxmox-backup-client in PVE! :rolleyes:
 
My guess is you would have to set up a cron job to run something like rsync to back up the individual drives. I don't think you can do what you are trying to do through a normal Proxmox backup that you configure through the GUI.
 
The VM in question is a VM running Windows 11 and Hyper-V with 3 guests (sharing the GPU).

Both the host and the guests have the system running on an NVMe disk each (PCI-e passthrough), plus one of these disks each (with the folders for documents, images, etc. pointing to them, as well as a backup image of the NVME disks (which Proxmox cannot see).

I need to be able to back up the discs that Proxmox can see and send them to PBS, a weekly backup (but only one disc per day), as well as being able to restore them when necessary, one at a time (instead of the entire VM as I mentioned before).

PS - I hope I was able to be more explicit in my intentions! :rolleyes:
 
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