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Re: hidden snapshots wont delete

nextwavepc
Guide

hidden snapshots wont delete

i am showing 1.36TB of snapshots - i only had them enabled on a directory with 200mb shared. i have tried to delete using the ssh to upgrade the snapshot - but no dice. i am running current firmware of 6.10

ive tried, https://notes.ponderworthy.com/upgrade-snapshots-in-a-readynas

and https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/How-can-I-delete-invisible-snapshot...

i can make new and delete just fine. but i am unable to see the "hidden snapshots" am i missing something?

 

Model: RN31400|ReadyNAS 300 Series 4- Bay (Diskless)
Message 1 of 12
StephenB
Guru

Re: hidden snapshots wont delete

Do you see the snapshots (via ssh) when you enter 

# btrfs subvolume list /data 

(use your actual volume name instead of /data if you are using flexraid)

 

If you can see them, then you could try manually deleting them with

# btrfs subvolume delete /path

using the full path of the snapshot (something like /data/sharename/.snapshots/xx/snapshot).  Make sure you include the volume name - the btrfs list command doesn't include it.

 

If the deletion works, you likely will need to do a balance (and maybe a scrub after that) to reclaim the space.

Message 2 of 12
nextwavepc
Guide

Re: hidden snapshots wont delete

this is what i get when i attempt that command 

Using username "root".
root@10.3.0.54's password:

Welcome to ReadyNASOS 6.10.0

Last login: Fri May 10 10:09:25 2019 from tech-1
root@NWNAS:~# btrfs subvolume list /data
ERROR: not a btrfs filesystem: /data
ERROR: can't access '/data'
root@NWNAS:~# root@NWNAS:~# btrfs subvolume list /data
-bash: root@NWNAS:~#: command not found
root@NWNAS:~# ERROR: not a btrfs filesystem: /data
-bash: ERROR:: command not found
root@NWNAS:~# ERROR: can't access '/data'
>

Message 3 of 12
StephenB
Guru

Re: hidden snapshots wont delete

What is the name of your data volume (look on the volume tab of the web ui)?

Message 4 of 12
nextwavepc
Guide

Re: hidden snapshots wont delete

ok, so its named RAID so i rerun the command and get.

 

ID 1491 gen 20856 top level 262 path ._share/test/.snapshot/c_1425099615
ID 1521 gen 22902 top level 262 path ._share/test/.snapshot/c_1427774440
ID 1551 gen 24893 top level 262 path ._share/test/.snapshot/c_1430366434
ID 1582 gen 63461 top level 262 path ._share/test/.snapshot/c_1433044814
ID 1612 gen 63455 top level 262 path ._share/test/.snapshot/c_1435636844

 

how would i structure the delete command?

 

Message 5 of 12
nextwavepc
Guide

Re: hidden snapshots wont delete

i reran with the command - volume name is RAID

 

now i get this...

 

ID 1491 gen 20856 top level 262 path ._share/test/.snapshot/c_1425099615
ID 1521 gen 22902 top level 262 path ._share/test/.snapshot/c_1427774440
ID 1551 gen 24893 top level 262 path ._share/test/.snapshot/c_1430366434
ID 1582 gen 63461 top level 262 path ._share/test/.snapshot/c_1433044814
ID 1612 gen 63455 top level 262 path ._share/test/.snapshot/c_1435636844

what is the correct structure of 

btrfs subvolume delete /path

to delete the snapshots? 

Message 6 of 12
nextwavepc
Guide

Re: hidden snapshots wont delete

RAID

i now get this on the output 

ID 1682 gen 63449 top level 262 path ._share/test/.snapshot/c_1441684838
ID 1683 gen 63449 top level 262 path ._share/test/.snapshot/c_1441771243
ID 1684 gen 63449 top level 262 path ._share/test/.snapshot/c_1441857648
ID 1685 gen 63449 top level 262 path ._share/test/.snapshot/c_1441944053
ID 1686 gen 63449 top level 262 path ._share/test/.snapshot/c_1442030458
ID 1687 gen 63449 top level 262 path ._share/test/.snapshot/c_1442116803
ID 1688 gen 63449 top level 262 path ._share/test/.snapshot/c_1442203209
ID 1689 gen 63449 top level 262 path ._share/test/.snapshot/c_1442289613
ID 1690 gen 63449 top level 262 path ._share/test/.snapshot/c_1442376019

 

 

what is the correct structure to delete?

 

Message 7 of 12
nextwavepc
Guide

Re: hidden snapshots wont delete

RAID

i now get this on the output 

ID 1682 gen 63449 top level 262 path ._share/test/.snapshot/c_1441684838
ID 1683 gen 63449 top level 262 path ._share/test/.snapshot/c_1441771243
ID 1684 gen 63449 top level 262 path ._share/test/.snapshot/c_1441857648
ID 1685 gen 63449 top level 262 path ._share/test/.snapshot/c_1441944053
ID 1686 gen 63449 top level 262 path ._share/test/.snapshot/c_1442030458
ID 1687 gen 63449 top level 262 path ._share/test/.snapshot/c_1442116803
ID 1688 gen 63449 top level 262 path ._share/test/.snapshot/c_1442203209
ID 1689 gen 63449 top level 262 path ._share/test/.snapshot/c_1442289613
ID 1690 gen 63449 top level 262 path ._share/test/.snapshot/c_1442376019

 

 

what is the correct structure to delete?

Message 8 of 12
StephenB
Guru

Re: hidden snapshots wont delete

Try /volume-name/._share/test/.snapshot/c_1441684838 using your actual volume name.  

 

If that deletes the first snapshot, then try deleting the rest.

Message 9 of 12
nextwavepc
Guide

Re: hidden snapshots wont delete

hi, i did figure that out - and it did delete those, however i still have 1.36TB in snapshots. i ran a balance and scrub as well. 

 

if i run 

btrfs subvolume list /RAID 

again I get.

 

root@NWNAS:~# btrfs subvolume list /RAID
ID 256 gen 550399 top level 5 path .purge
ID 258 gen 666498 top level 5 path .apps
ID 259 gen 665654 top level 5 path home
ID 260 gen 8 top level 5 path .vault
ID 261 gen 666493 top level 5 path Isos
ID 262 gen 665723 top level 5 path ._share
ID 263 gen 666492 top level 5 path Backups
ID 264 gen 666497 top level 5 path Tools
ID 265 gen 665646 top level 5 path HDDImages
ID 1847 gen 665733 top level 5 path .timemachine
ID 7195 gen 665654 top level 259 path home/admin
ID 22284 gen 250746 top level 259 path home/donna@comprehensivehousingresou
ID 22286 gen 665654 top level 259 path home/raymondkbanville@hotmail.com
ID 22303 gen 666495 top level 5 path RotaryShare
ID 22304 gen 666497 top level 22303 path RotaryShare/.snapshots
ID 34024 gen 665676 top level 22304 path RotaryShare/.snapshots/33/snapshot
ID 34025 gen 666497 top level 261 path Isos/.snapshots

 

where to from here?

 

Message 10 of 12
Hopchen
Prodigy

Re: hidden snapshots wont delete

Are you looking to delete all your snapshots or? You still have some left. An easier way to see the snapshots would be:

btrfs subvolume list -s /RAID 
Message 11 of 12
StephenB
Guru

Re: hidden snapshots wont delete


@nextwavepc wrote:

 

where to from here?

 


Well, you do have one more to delete


@nextwavepc wrote:


ID 34024 gen 665676 top level 22304 path RotaryShare/.snapshots/33/snapshot


So maybe do that last one, and repeat the balance and the scrub.

Message 12 of 12
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