Easiest way to backup..a backup?

I

iliadz

New Member
Aug 26, 2024
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I'm going to migrate some systems, and just to be safe, I would like to offload one of my backups to a Windows or Linux server.

I've searched the naming structure, and copied what I can see is the backup, but it's far too small to be the real thing.

The file system I have the PB backups is ext4 and from what I can see, the backups are located in /mnt/datastore/BACKUP/vm/### where ### is the number of the virtual machine.

The VM that I would like to copy form the backup server has a 256GB hard drive. Of that, at least 20GB is real data.


Something isn't adding up :) I'm obviously missing the real location or something else is wrong.

I'm guessing this is an easy answer and hopefully solution as well.

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Last edited:
There is no zero-effort solution for this.

PBS stores every single backup in several thousands of "chunks". What you saw in "/mnt/datastore/BACKUP/vm/###" is just the management information, not the data itself.

The correct solution is to build an independent, second PBS and then setup "Remote Sync" - https://pbs.proxmox.com/docs/managing-remotes.html

Good luck!
 
louie1961 said:
I just use Rsync, and copy the entire folder to another NAS
Click to expand...
Sure, I probably should have worded that much differently. I can use scp pretty easily to do this. However, the backup that I am looking at has a 256GB hard drive. Of that, at least 20GB is real data. When I copy that backup, the size on disk is 8MBs. So I am missing the actual data location...
Something isn't adding up :)

I'll modify my post to reflect his.
 
UdoB said:
There is no zero-effort solution for this.

PBS stores every single backup in several thousands of "chunks". What you saw in "/mnt/datastore/BACKUP/vm/###" is just the management information, not the data itself.

The correct solution is to build an independent, second PBS and then setup "Remote Sync" - https://pbs.proxmox.com/docs/managing-remotes.html

Good luck!
Click to expand...
Not looking for the zero effort solution...just looking for THE solution :) And thanks, seems like this is THE solution.
 
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I missed that you were using PBS. It may be easier to do a one time backup direct from Proxmox to an NFS share. I do my backups to a separate NAS, and it creates three files for each VM: a notes file, a log file and compressed backup file. Pretty easy to move only ones I need.

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louie1961 said:
I missed that you were using PBS. It may be easier to do a one time backup direct from Proxmox to an NFS share. I do my backups to a separate NAS, and it creates three files for each VM: a notes file, a log file and compressed backup file. Pretty easy to move only ones I need.

View attachment 74662
Click to expand...
Ah, thanks. I will check that out.
 
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