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Balancing does not help with "no space left" despite there is capacity available.
I've run into the issue with ReadyNas 4220. Firmware 6.4.2 There were a lot of posts in community for "no space left" error but none worked for me. # echo Test > /home/admin/test -bash: /home/ad...
Do you have a backup of your data?
Can you delete some files to get volume usage below 80% and then try again?
Thanks for reply.
The NAS contains mainly Virtual Machines and we do not backup them.
I’ve freed space to 72% use
# df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 10M 4.0K 10M 1% /dev
/dev/md0 4.0G 472M 3.3G 13% /
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 13M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 3.9G 0 3.9G 0% /media
/dev/md127 6.5T 4.1T 1.7T 72% /prod
/dev/md127 6.5T 4.1T 1.7T 72% /home
/dev/md127 6.5T 4.1T 1.7T 72% /apps
/dev/md127 6.5T 4.1T 1.7T 72% /run/nfs4/home
/dev/md127 6.5T 4.1T 1.7T 72% /run/nfs4/prod/VMStorage
/dev/md127 6.5T 4.1T 1.7T 72% /run/nfs4/prod/ISO
Balancing made progress to ~70% and failed again with same error.
I’ve got 80% in use back on /prod partition as a result of balancing run and still no luck with “no space left” resolve.
How can I figure out where 600GB disappeared while balancing?
# btrfs filesystem show
Label: '43f63420:root' uuid: 701c9fe6-995a-4572-b360-dd7986123e77
Total devices 1 FS bytes used 447.16MiB
devid 1 size 4.00GiB used 1.53GiB path /dev/md0
Label: '43f63420:prod' uuid: 96799cff-1ad8-4deb-a06b-758cacfea9bd
Total devices 1 FS bytes used 4.04TiB
devid 1 size 6.49TiB used 5.59TiB path /dev/md127
As I understand free workspace is 900GB. Isn't that sufficient?
Is there a way to check what exactly locks the space and which filter to use?
Is that normal that I have to keep more than 1TB free to keep the NAS operational?
Thank you in advance.
Can you send in your logs (see the Sending Logs link in my sig)?
Do you have a case open with support?
It seems there is something unusual going on on your system.Mailed the logs.
Opening support case.
Thanks.
You've got lifetime online chat support but your phone support has expired.
I can see from the logs that 729GiB is allocated for metadata and only a couple of GBs of this is used. That's huge and unusual. Did you store a heap of snapshots on this volume at one point?
It could be that a balance with a -musage filter as well as a -dusage one would be more successful.
# btrfs fi df /prod
Data, single: total=4.17TiB, used=4.04TiB
System, DUP: total=32.00MiB, used=864.00KiB
Metadata, DUP: total=729.00GiB, used=2.42GiB
GlobalReserve, single: total=512.00MiB, used=224.00KiB
In any case seeing you've tried fixing it yourself support may be unwilling to assist.
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