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ReadyNAS 4312 - 54TB usable full even though the only thing stored 49TB LUN
Hello, I'm having an issue with our ReadyNAS 4312, we're using it as VEEAM target, set up an iSCSI LUN 49TB in size. We had about 5-6TB of space left on the NAS outside of that LUN. We recently t...
I attached a screenshot, i was able to get ssh'd in but the command doesn't work
you need to login as User root using the nas admin password
Yes I tried responding to this post but i think it kept deleting because of spam. I got the feedback here below, i see i have this Veeam-Repo-01/.snapshots is this what I'm looking for? Can I delete this? Not sure what the command would be? Any ideas?
root@-RNAS72:~# btrfs subvolume list /data
ID 257 gen 8278595 top level 5 path home
ID 258 gen 8260736 top level 5 path .apps
ID 259 gen 10 top level 5 path .vault
ID 260 gen 8261962 top level 5 path ._share
ID 41223 gen 4952707 top level 5 path .purge
ID 82186 gen 8282712 top level 5 path Veeam-Repo-01
ID 132364 gen 8279931 top level 5 path .timemachine
ID 132365 gen 8245691 top level 82186 path Veeam-Repo-01/.snapshots
ID 141963 gen 8280829 top level 257 path home/admin
root@-RNAS72:~#I logged in as root and ran the command, it came back with a listing of the volumes, there is one in there for my veeam-repo-01/.snapshots. I'm attaching the feedback from the command. Is it possible to delete this from the command line? I keep getting commit errors when I try to disable the snapshots. I assume because the NAS is completely full, but if I can't delete these snapshots then i dont know how I'll reclaim any space.
dgaliffa wrote:
I logged in as root and ran the command, it came back with a listing of the volumes, there is one in there for my veeam-repo-01/.snapshots.
Yes, but there are no snapshots in there, so there are no subvolumes to delete.
I'm not convinced that your space issue is actually due to snapshots (though I don't know what is causing it),
You might want to run
# btrfs filesystem df /data
and post the results on a reply.
Yeah, see that is the peculiar thing, I ran that command and this was the output. The thing is, the only data on this NAS is the 49TB thick provisioned LUN. No other applications or devices are writing to this device as a source. When the iSCSI drive shows up on our VEEAM server it only shows up as a 49TB drive, not the full size 54TB.
Thats the part that has me confused on how its taking up more space all of a sudden, the only thing I changed was the snapshot settings, have you ever seen snapshots running on systems without enough space? Maybe it's in the middle of running a snapshot and filling up but running out of space? So the drive overview isn't showing the yellow section or separating it into the snapshot section.
root@-RNAS72:~# btrfs filesystem df /data
Data, single: total=54.53TiB, used=54.53TiB
System, DUP: total=8.00MiB, used=6.03MiB
Metadata, DUP: total=1.50GiB, used=787.94MiB
GlobalReserve, single: total=329.94MiB, used=0.00B
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