Running 25.04, recent build. I created time_machine dataset and set up time_machine SMB share with Multi User Time Machine preset. Created different users for the different macs, I have 2 of them connected to this share performing time machine backups. As expected, child datasets were auto created for each of the users, but I am not seeing any snapshots automaticallly created after several days’ worth of time machine successful completed backups (I searched in snapshot list). Other than other posts I can’t any documentation on this feature and how to enable/troubleshoot the automatic snapshots. I guess could set up a snapshot schedule but then I couldn’t be sure that the snapshots wouldn’t be created in the middle of a backup which is not really helpful in terms of restoring a corrupted sparebundle. Any way to troubleshoot why the auto snapshots are not happening?
I didn’t know this was a feature myself… its not in the docs. Where do you see it posted?
Normally, I’d do a snapshot at about 3.30am. Its not often I’m still working on things. I’m sure Time Machine can cope with an incomplete backup…
Here are some posts on the subject, including some information from the developer of the feature:
https://forums.truenas.com/t/how-do-i-troubleshoot-no-automatic-time-machine-snapshots/7856
https://forums.truenas.com/t/cloud-sync-time-machine-sparsebunde-to-b2/4962/2
https://www.truenas.com/community/threads/timemachine-snapshots-retention.100593/
Just badging here to say this feature didn’t work for me either on 24.10.2.1. I have just set up tiered snapshots.
Thanks… we should include this more clearly in the documentation.
There is a (private) ticket NAS-135813 on this being reviewed. There may be a bug.
Thanks - I can’t see the private ticket so any follow up info after it’s evaluated would be appreciated. I will do periodic scheduled snapshots in the meantime.