Readynas OS 6.9.4 Snapshots take 1.07TB but i have no snapshots to delete

[Ntemis]

Help!

My NAS is full but i have 1.07TB worth of snpashots that arent there(show in the gui)

tell me where to look through ssh so i can delete them manually. Thanks

[Sandshark]

Have you run a Balance?  That should free up space allocated to phantom snapshots.  But I know there was also an upgrade that could result in snapshots retained that do not show up.  I've seen postings on the forum, but don't recall the details since it has not happened to me.  The search in the forum is poor, but try it anyway; and also Google.

[StephenB]

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@Sandshark wrote:

Have you run a Balance?  That should free up space allocated to phantom snapshots.  

I agree you should do that.

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@Sandshark wrote:

But I know there was also an upgrade that could result in snapshots retained that do not show up.  

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You can see the snapshots in ssh with

# btrfs subvolume list /data

It's also possible to delete the snapshots from from the command line.

The upgrade issue was a long time ago (pre 6.2 firmware), so it seems unlikely. The fix would be

# touch /.force_snapshots_upgrade
# systemctl restart readynasd

[Ntemis]

Balance is done Snapshot ghosts are still there and actually got bigger in size

[Ntemis]

Looks like snapshots still exist even when deleted from gui(bug is unacceptable btw)

root@nas-EA-C6-80:/data/Videos/.snapshots# ls
113  97

found something i will try

btrfs subvolume delete /path

[StephenB]

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@Ntemis wrote:

btrfs subvolume delete /path

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That will work, though you perhaps want to do a btrfs filesystem sync after you are done.

[Ntemis]

Further help is needed 🙂

root@nas-EA-C6-80:/# btrfs filesystem sync
btrfs filesystem sync: too few arguments
usage: btrfs filesystem sync <path>

Force a sync on a filesystem

[Ntemis]

Just tried :

root@nas-EA-C6-80:/# btrfs filesystem sync /data
root@nas-EA-C6-80:/# btrfs filesystem sync /data/Videos/

nothing happens still my snapshots are 1.08TB of ghosted lost space

[Ntemis]

# touch /.force_snapshots_upgrade
# systemctl restart readynasd

Did the trick, nasty BUG!

Success!