Time Machine no longer taking snaphots after Fangtooth upgrade

TrueNAS General
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1

Hello,

I use TN as my Time Machine destination for 2 macbooks.

About 2 weeks ago when Fangtooth came out, I upgraded from Eel.

Today I was looking at my snapshots in TrueNAS.

I see that the Time Machine has not taken a snapshot after April 16th.
Normally it takes an automatic snapshot every couple of hours I see.

I use the default Time Machine settings in the TN share. No additional parameters.

Anyone else run into this?

Side note, I have noticed also that a lot of snapshots that had automatic removal turned on (like keep daily snapshots for 3 months), where not automatically deleted anymore. Though they had Retention: “some date ago”. Not sure if that is my local issue or that the upgrade somehow reset a database file that kept track of these. Will keep a track of it. I just wiped a few thousand snapshots to make them up to date with today’s retention date.
(no I didn’t manually remove Time Machine snapshots)

Thanks.

2

My TM backups seems to be working correctly on Fangtooth. None of my snap[shot or SMB settings changed from 24.x

3

Same problem for me :frowning:

4

I have already filed a bug report a few weeks ago, which will be looked at.
After updating to 25.04.1 the problem remains.

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5

Is anyone else also having this issue that no snapshots are being taken on time machine backups? Or just the 2 of us?

Time machine backups itself work fine, on both macs we have (M1 and Intel running latest Sequoia).
I use multi-user time machine backups.

I created a second multi-user time machine backup share/dataset, no snapshots neither
I also create a third basic time machine backup share/dataset, no snapshots neither.
Tried both macs and also a different username/password.

In all cases the backup completes and also subsequent incremental backups, but I see 0 snapshots. (only the old ones until April 16th; when I was on Eel)

I keep all the default settings.

I reported and added this to:
https://ixsystems.atlassian.net/browse/NAS-135813

6

I have exactly the same issue. Automatic snapshots have stopped on the same day I had upgraded my TrueNAS from v.24.10.2.2 to v.25.04.1

Later I did fresh install of v.25.04.2.1 including new pool and new multi-user Time Machine backup dataset/share. No snapshots either.

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7

I have the same issue with Fangtooth. @EtienneB can you share the link to your bug report please?

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8

see above :slight_smile:
https://ixsystems.atlassian.net/browse/NAS-135813

9

thanks for sharing this. I don’t have permission to view this for some reason. Can you please share what’s the status of bug report? Is there an ETA for a patch?

10

The status is unclear to me, says Waiting for response.
Andrew Walker is looking at it (last communication May 2025)
I have provided log files.
So no ETA so far.

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11

I’ve just tried my snapshotting my Time Machine dataset under Fangtooth. Works fine here with a newly set up snapshot task.

12

Did you create your own snapshot task?
This used to be done automatically when you choose the Timemachine profile in the share.

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13

Yes. And the Time Machine option in the SMB share is enabled.

14

Thanks, the profile used to do this and that should be the intentional use case. Creating manual snapshots seems to me interfering with the underlying system. For now it is a good work around.

15

I also reported the issue

https://ixsystems.atlassian.net/browse/NAS-137510

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