ReadyNAS 3138 (OS 6.10.5 hotfix 1) no space left after I deleted a share

[crm-informatica]

Hello to everybody,

         I got the same problem into 2 different old ReadyNAS model (RN3138 and RN2100).

The problem is that when I delete a share, the free space didn't increase but it kept the same before.

I just deleted a total amount of 4TB of a share and now I continue to have only 60GB of free space; the total volume amount is of 5.6TB (4 * 2TB sata disks in RAID 5).

There are no snapshots; the btfrs command line doesn't shows any (and I deleted them too); the du command line shows only 1.3TB of occuped space in /data; the df comman line shows there is 99% of space in use.. Where is gone the space used after the share deletion?

I ready on this community forum that there are many people had the same problem and that the only solution is to delete the volume and re-create everything... Can somebody to help me please?

I attached only one screenshot because the system doesn't permit me to add anymore.
Thanks in advance.

Ciao!

[StephenB]

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@crm-informatica wrote:

I ready on this community forum that there are many people had the same problem and that the only solution is to delete the volume and re-create everything... Can somebody to help me please?

I attached only one screenshot because the system doesn't permit me to add anymore.

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Try running a balance from the volume settings wheel, and let us know if that helps.

Also, please post the output of

btrfs fi df /data
btrfs fi du -s /data

Normal df and du don't give a good indication of where the space is going.

[crm-informatica]

Hello StephenB,

         you are right. I forgot to write those command results too. I attached the screenshot.

Really many thanks for your quick reply&support.

Ciao

[StephenB]

btrfs fi us /data -b

might also give some good information.

[crm-informatica]

Hello StephenB,

       this is the result:

Overall:
    Device size:		     5986292072448
    Device allocated:		     5921753268224
    Device unallocated:		       64538804224
    Device missing:		                 0
    Used:			     5920943214592
    Free (estimated):		       64601485312	(min: 32332083200)
    Data ratio:			              1.00
    Metadata ratio:		              2.00
    Global reserve:		         240353280	(used: 0)

Data,single: Size:5909874999296, Used:5909812318208
   /dev/md127	5909874999296

Metadata,DUP: Size:5905580032, Used:5564825600
   /dev/md127	11811160064

System,DUP: Size:33554432, Used:622592
   /dev/md127	  67108864

Unallocated:
   /dev/md127	64538804224

Thanks again

Ciao

[crm-informatica]

Hello,

     I forgot to notice you that balance, scrub, etc didn't produced any effect.

Ciao

[StephenB]

The system is definitely thinking that the allocated space is all used.

Maybe use btrfs fi du -s /path on each of your subvolumes, and see if that gives you any clues on where the space is going.

[crm-informatica]

Really many thanks for your reply.

      I already ran those commands and they show that there is occuped only 1,8TB in a volume of 5.6TB but the free space is 60GB. I just deleted the volume and I recreate it. This seems to be the only slution to apply, like many other people done before me.

Thanks

Ciao!