Recovery from PBS host failure

Aug 30, 2022
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What's the recommended path for handling recovery of the Proxmox Backup Server itself?

It's old server level hardware and I've isolated the failure down to the motherboard or CPU. No drive is suspected of failure, smart stats were fine and it was an enterprise SSD and a zfs mirror for data. I have other systems I can use, I'm not thinking I'll try to resurrect this exact hardware.

Should I do a fresh install on a different SSD and then import the zfs array? If I copy data from the old system, can I overwrite the fresh/new data with old system IDs and retention profiles? Essentially, assuming a new OS and manually configured networking settings to be the same as the old system, can I expect a reliable system after restoring old config data? (with services stopped during the replacement, obviously!)

Alternatively, if I have a similar gen system can I just move the drive setup over and the debian core will automatically figure stuff out? I understand I'll probably need to adjust networking slightly to account for different hardware names.

It's funny to have a cluster for PVE, and offsite backup of the PBS data, but then to be fairly clueless when it comes to the PBS host itself. I welcome all critiques and suggestions for improvement - thanks!
 
Alternatively, if I have a similar gen system can I just move the drive setup over and the debian core will automatically figure stuff out? I understand I'll probably need to adjust networking slightly to account for different hardware names.
yeah normally, you can boot from the existing disks on a new server when you configure the bios to boot from the disks as it was on the old server.
Also as you said the only thing that might need adjusting is the network config

if for some reason you can't boot from the disks, the procedure would be:
* new install on fresh disk,
* importing/mounting the existing datastores
* manually importing the datastores in /etc/proxmox-backup/datastore.cfg
 
Thank you! As you predicted this was super easy - just drop the drives in a new machine, edit the interface name in networking, restart networking, done. I appreciate the reply and additional info, should I ever need that route instead of this one.
 

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