best way to backup whole node "system" partitions (boot and lvm)?

[m.ardito]

HI,

I would like to be able to restore a pve node exactly how it is now, taking a full backup (boot and lvm partitions), to an external nas space.
I would prefer a simple way, like booting from sysresccd or another live cd.
I know a few methods (partimage, fsarchiver, dd..) that are easy to use, but I am in doubt for the LVM partition, never used those tools on such partition type.

[edit]
I just saw that booting with sysrescd fsarchiver probe finds dm-0, dm-1 and dm-2, which are root/data/swap pve partitions.

I could probably backup those dm-x "partitions", but if I need to rebuild the node, how should I proceed?
Is there anything documented?
[/edit]

Any suggestions?
Thanks

Marco

 

[udo]

Hi,
why not with the backup-function of pve?

Udo

 

[m.ardito]

Hi,
why not with the backup-function of pve?
Udo

? afaik, pve backup works for vm/ct only, not for itself (the hypervisor node)...
but maybe I am missing something...? that could well be, I was so tired today

Marco

 

[udo]

? afaik, pve backup works for vm/ct only, not for itself (the hypervisor node)...
but maybe I am missing something...? that could well be, I was so tired today

Marco

Hi Marco,
sorry, looks that I'm also too tired yesterday. I haven't read correctly and assume, you mean VMs with lvm and not the whole node...

If you save the disks with dd you have an big overhead (depends on free space in the VG) but you need no special tools...

Udo