Hi, My NAS (RN102 with two 3TB disks in RAID 1) is showing about one TB in snapshots against 1.36TB in data. However, deleting all snapshots from each share does not free up any space. Instead, after deleting all snapshots, the space used by data is shown to have increased by the same size that the snapshots were shown to have been taking up. This is what it shows when a few shares have ONE snapshot, taken on today's date. After deleting those few snapshots: While the space taken up by each share added together is still about the same as before deleting the snapshots: I've defragged and run a balance I've done: # touch /.force_snapshots_upgrade # systemctl restart readynasd rebooted, no change.What can I do to get that space back?Thanks in advance!Kind regards, Laszlo

Does # btrfs subvolume list -s /data show any snapshots?

Hi, Thanks for your reply # btrfs subvolume list -s /data doesn't show me anything # btrfs subvolume list /data Gives me: ID 256 gen 2480738 top level 5 path homeID 258 gen 2484035 top level 5 path .appsID 259 gen 1572825 top level 5 path .vaultID 260 gen 2482913 top level 5 path PicturesID 261 gen 2482980 top level 5 path VideosID 262 gen 2482888 top level 5 path MusicID 263 gen 2482912 top level 5 path DocumentsID 264 gen 2482911 top level 5 path BackupID 265 gen 2482931 top level 5 path ._shareID 778 gen 2482609 top level 7810 path .purge/1547626945_sabnzbdID 832 gen 2480286 top level 5 path QbittorrentID 1895 gen 2483869 top level 5 path TutorialsID 3380 gen 2483913 top level 264 path Backup/.snapshotsID 3457 gen 2483913 top level 263 path Documents/.snapshotsID 3495 gen 1572825 top level 262 path Music/.snapshotsID 3533 gen 2483914 top level 260 path Pictures/.snapshotsID 3571 gen 1572825 top level 832 path Qbittorrent/.snapshotsID 3610 gen 1581080 top level 778 path .purge/1547626945_sabnzbd/.snapshotsID 3684 gen 2483942 top level 1895 path Tutorials/.snapshotsID 3707 gen 1572825 top level 261 path Videos/.snapshotsID 5232 gen 2482930 top level 5 path .timemachineID 7810 gen 2471393 top level 5 path .purgeID 17168 gen 1955638 top level 5 path resilio-syncID 17169 gen 1572825 top level 17168 path resilio-sync/.snapshotsID 19317 gen 1955545 top level 5 path AfbeeldingenID 19318 gen 1955545 top level 5 path VideoID 19319 gen 1955545 top level 5 path MuziekID 19320 gen 1955545 top level 5 path DocumentenID 19321 gen 2483868 top level 19317 path Afbeeldingen/.snapshotsID 19322 gen 2483869 top level 19318 path Video/.snapshotsID 19323 gen 2483868 top level 19319 path Muziek/.snapshotsID 19324 gen 2483868 top level 19320 path Documenten/.snapshotsID 19325 gen 2484028 top level 5 path TransmissionID 19326 gen 2483868 top level 19325 path Transmission/.snapshots

I'm guessing that it's these two. ID 778 gen 2482609 top level 7810 path .purge/1547626945_sabnzbdID 3610 gen 1581080 top level 778 path .purge/1547626945_sabnzbd/.snapshots Can you navigate into .purge and see the space usage? You could try manually deleting the subvolume # btrfs subvolume delete -c /data/.purge/1547626945_sabnzbd

Sorry for being a n00b, but how do I navigate into .purge? manually deleting gives me this: root@RN102:~# btrfs subvolume delete -c /data/.purge/1547626945_sabnzbd Delete subvolume (commit): '/data/.purge/1547626945_sabnzbd' ERROR: cannot delete '/data/.purge/1547626945_sabnzbd': Directory not empty Thanks in advance!

LaszloFolgerts wrote: Sorry for being a n00b, but how do I navigate into .purge? # cd /data/.purge/1547626945_sabnzbd LaszloFolgerts wrote: manually deleting gives me this: root@RN102:~# btrfs subvolume delete -c /data/.purge/1547626945_sabnzbd Delete subvolume (commit): '/data/.purge/1547626945_sabnzbd' ERROR: cannot delete '/data/.purge/1547626945_sabnzbd': Directory not empty Try deleting .snapshots first then. # btrfs subvolume delete -c /data/.purge/1547626945_sabnzbd/.snapshots

RN102 snapshots taking up space, not showing up in GUI

12 Replies

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StephenB
Guru - Experienced User
Jan 20, 2019
Does

# btrfs subvolume list -s /data

show any snapshots?
- LaszloFolgerts
  Aspirant
  Jan 20, 2019
  Hi,
  
  Thanks for your reply
  
  # btrfs subvolume list -s /data
  
  doesn't show me anything
  
  # btrfs subvolume list /data
  
  Gives me:
  
  ID 256 gen 2480738 top level 5 path home
  ID 258 gen 2484035 top level 5 path .apps
  ID 259 gen 1572825 top level 5 path .vault
  ID 260 gen 2482913 top level 5 path Pictures
  ID 261 gen 2482980 top level 5 path Videos
  ID 262 gen 2482888 top level 5 path Music
  ID 263 gen 2482912 top level 5 path Documents
  ID 264 gen 2482911 top level 5 path Backup
  ID 265 gen 2482931 top level 5 path ._share
  ID 778 gen 2482609 top level 7810 path .purge/1547626945_sabnzbd
  ID 832 gen 2480286 top level 5 path Qbittorrent
  ID 1895 gen 2483869 top level 5 path Tutorials
  ID 3380 gen 2483913 top level 264 path Backup/.snapshots
  ID 3457 gen 2483913 top level 263 path Documents/.snapshots
  ID 3495 gen 1572825 top level 262 path Music/.snapshots
  ID 3533 gen 2483914 top level 260 path Pictures/.snapshots
  ID 3571 gen 1572825 top level 832 path Qbittorrent/.snapshots
  ID 3610 gen 1581080 top level 778 path .purge/1547626945_sabnzbd/.snapshots
  ID 3684 gen 2483942 top level 1895 path Tutorials/.snapshots
  ID 3707 gen 1572825 top level 261 path Videos/.snapshots
  ID 5232 gen 2482930 top level 5 path .timemachine
  ID 7810 gen 2471393 top level 5 path .purge
  ID 17168 gen 1955638 top level 5 path resilio-sync
  ID 17169 gen 1572825 top level 17168 path resilio-sync/.snapshots
  ID 19317 gen 1955545 top level 5 path Afbeeldingen
  ID 19318 gen 1955545 top level 5 path Video
  ID 19319 gen 1955545 top level 5 path Muziek
  ID 19320 gen 1955545 top level 5 path Documenten
  ID 19321 gen 2483868 top level 19317 path Afbeeldingen/.snapshots
  ID 19322 gen 2483869 top level 19318 path Video/.snapshots
  ID 19323 gen 2483868 top level 19319 path Muziek/.snapshots
  ID 19324 gen 2483868 top level 19320 path Documenten/.snapshots
  ID 19325 gen 2484028 top level 5 path Transmission
  ID 19326 gen 2483868 top level 19325 path Transmission/.snapshots
  - StephenB
    Guru - Experienced User
    Jan 20, 2019
    I'm guessing that it's these two.
    
    ID 778 gen 2482609 top level 7810 path .purge/1547626945_sabnzbd
    ID 3610 gen 1581080 top level 778 path .purge/1547626945_sabnzbd/.snapshots
    
    Can you navigate into .purge and see the space usage?
    
    You could try manually deleting the subvolume
    
    # btrfs subvolume delete -c /data/.purge/1547626945_sabnzbd
LaszloFolgerts
Aspirant
Jan 20, 2019
Any ideas on how to free up the remaining space?
- StephenB
  Guru - Experienced User
  Jan 20, 2019
  LaszloFolgerts wrote:
  
  Any ideas on how to free up the remaining space?
  
  It should free up as a background process.
  
  You can try running another balance, perhaps followed by a scrub.
  - LaszloFolgerts
    Aspirant
    Jan 20, 2019
    StephenB wrote: It should free up as a background process.
    
    All by itself? sorry, I don't understand.
    
    Running a balance now. will report back.
LaszloFolgerts
Aspirant
Jan 20, 2019
I ran a balance, but nothing changed. Rebooted, still no change unfortunately.

I am reluctant to start a srub because I've read in another post that it will probably take weeks to finish, overload the CPU and thus make the NAS unresponsive while not doing much at all about snapshots.