zfs has @migrate

[promoxer]

# zfs list -t snapshot
NAME                                  USED  AVAIL  REFER  MOUNTPOINT
rpool@migrate                           0B      -    96K  -
rpool/ROOT@migrate                      0B      -    96K  -
rpool/ROOT/pve-1@migrate             6.25G      -  86.1G  -
rpool/data@migrate                      0B      -    96K  -
rpool/data/base-121-disk-0@__base__     0B      -  4.23G  -
rpool/data/base-121-disk-0@migrate      0B      -  4.23G  -
rpool/data/vm-122-disk-0@migrate        0B      -  4.46G  -
rpool/var-lib-vz@migrate             16.5G      -  75.9G  -

I see a sudden decrease in my rpool's freespace

1. Is it safe to delete those that end with @migrate? In particular, rpool/ROOT/pve-1@migrate and rpool/var-lib-vz@migrate?
2. Is there something in the background that made @migrate? apt update/upgrade?

 

[fstrankowski]

Those are snapshots named "migrate". Whoever created these might have had a reason. Are you the owner of said machine? Take a look into each of these VMs:



You should see the snapshots there. Do you know what a snapshot is and does and is made for?

 

[news]

you can delete these snapshots, example:

zfs destroy -R rpool/var-lib-vz@migrate

see: man zfs destroy

 

[uzumo]

2. Is there something in the background that made @migrate? apt update/upgrade?

How about judging based on the date it was created?

According to my prediction, it will display August 2025, and the cause is an operation you performed yourself.

zfs list rpool -t snapshot -o name,creation

Snapshots are only created when using commands like `zfs snapshot -r` to create a `migrate` under an rpool in a recursive manner.

 

[promoxer]

How do I identify the operation I ran?

 

[uzumo]

There is a way to check your diary for that day.

 

[Impact]

zpool history might help or just history.