What Are The Numbered Snapshots?

TrueNAS General
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1

I’m looking in the list of snapshots on my 24.04.2.5 system and can see a load of expected/periodic snapshots for my Apps dataset with names formatted “auto-YYYY-MM-DD_05_00”, and they’re all marked as retention of “will be automatically destroyed”. I have a daily schedule that creates a snapshot of the data/config folders for all my apps at 05:00.

But I also have a load of other snapshots of the same folders in the Apps dataset with just a number for the snapshot name. These are marked as “will not be destroyed automatically”. The numbers range from 3 to 64, but are not contiguous.

Does anyone know what created these snapshots, and am I safe to delete them?

2

Not sure what created the snapshots, but the fact that they’re not marked to be destroyed automatically suggests it was a manual/not-scheduled event.

3

Could they be snapshots taken before an ix application is updated? Is that a thing?

Looking more closely, I can see that none of my docker custom apps are included in the numbered snapshots, only ix apps from the truenas catalog.