Failure looking for backup disk in Time Machine

[clintolsen]

TrueNAS version: TrueNAS-13.0-U3.1
MacOS: 12.2.1 (and others)

I had Time Machine working just fine with Monterey (and older versions) with TrueNAS 12. Recently I've noticed problems with Time Machine not finding the backup disk. I suspect there's something messed up with Samba, but I don't know how to debug what's going on.

When Time Machine failed to work before, I used to be able to shutdown the SMB service and restart it and things would start working. I can intermittently get it to work after a reboot. Once a backup completes it reverts back to the old behavior of not being able to find the backup disk.

For background info, here's how I set up my datasets for Time Machine back in the 12.X days. I had zero issues so I was good to go:

Backup Mac to TrueNAS / FreeNAS using TimeMachine (works with Multiple Macs)

This tutorial goes over how to use MacOS's extremely powerful backup tool, time machine, to backup over the network to a TrueNAS / FreeNAS NAS running ZFS. T...

youtu.be

Any advice on how to figure out what's happening would be much appreciated.

 

[clintolsen]

I was able to resolve this by disconnecting the disk and reconnecting. Although MacOS wouldn't initially see the volume as an available Time Machine disk, manually connecting to the disk via SMB made it show up as an option. It seems to be working now.