ZFS not freeing up space after file deletion

[jmpapi]

Hello,

I have a big ZFS raidz2 storage where I deleted some big files in order to free up space. I deleted the files from a Windows PC via SMB.
But free space is not growing.
Snapshots are disabled and there are no hidden snapshots.

Code: Select all

zfs list -o space
NAME                    AVAIL   USED  USEDSNAP  USEDDS  USEDREFRESERV  USEDCHILD
Internal                 787G   112G         0    107G              0      5.69G
Internal/Internal        787G   144K         0    144K              0          0
Internal/www             787G  5.65G         0   5.65G              0          0
StorageZ2Pool               0  20.0T         0    358K              0      20.0T
StorageZ2Pool/Backup        0  2.14T         0   2.14T              0          0
StorageZ2Pool/MediaZ2       0  17.9T         0   17.9T              0          0

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zfs list -t snapshot
no datasets available

I also deleted some files over terminal, but it's the same.

And I can't find any hidden trash folders.

THe NAS4Free system information page shows this:

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StorageZ2Pool
97% of 29TB
Total: 29T | Alloc: 28.2T | Free: 849G | State: ONLINE

Any ideas?

Thank you very much
Regards

[mooblie]

Has your SMB Share been setup with a Recycle Bin? If so, that's maybe the cause. You need to periodically manually empty it (with File Manager or Command line?) and/or just turn the Recycle Bin off?

[slaycock]

THe NAS4Free system information page shows this:
CODE: SELECT ALL
StorageZ2Pool
97% of 29TB
Total: 29T | Alloc: 28.2T | Free: 849G | State: ONLINE

Your pool seems pretty full so you might be at the stage where deleting a file normally won't work. ZFS can't delete a file if the free space on a pool is smaller than the size of the file you are trying to delete. (See if you can figure out why yourself ).

Have you tried deleting files form the console?

[jmpapi]

@mooblie:
recycle bin is already off for all the SMB shares.
Here my settings:

smb.png

[jmpapi]

@slaycock

really?!

Yes I already tried. Files are deleted, but sill no free space.

[slaycock]

Try exporting and then reimporting the zpool.

[jmpapi]

@slaycock:

tried it, but no luck

[jmpapi]

I don't get any error when deleting from the console. It deletes, but no free space. Files are really visually gone.

[ChriZathens]

Delete your snapshots.
Edit: Just noticed that you said there aren't any..
So scratch that...

[jmpapi]

I just now moved +-240Gb of data to my PC.
And I deleted 2 small Datasets on that pool.

Now I have this:

FreeSpace.png

Name Size Alloc Free Expandsz Frag Dedup Health Mount Point AltRoot

StorageZ2Pool 29T 27.5T (94%) 1.53T - 4% 1.00x ONLINE /mnt/StorageZ2Pool -

The Nas4Free configpage gives me 1,53T free.


What I don't understand. Shouldn't I have more than just 18,4 TB with 9*4 TB disks as RaidZ2 as the configpage shows aswell?
What could that be?

Thanks
Regards