FYI, unmounted the filesystem and it checked clean:
# btrfs check /dev/sdd
Checking filesystem on /dev/sdd
UUID: 550c0f77-8f75-40f3-a64e-42c87a0c8e8d
checking extents
checking free space cache
checking fs roots
checking csums
checking root refs
found 116808409085477 bytes used err is 0
total csum
Thanks for looking, let me know if you need any other info. I haven't
touched the system yet, but it appears I'll need to unmount to btrfs
check or mount rw,recovery to try and get it working again. Who knows
what will happen then? I can leave it as if for a few days if it will
help any diagnosis.
linux 4.1.4 forced read-only during an rsync, complaining about lack
of space, with ~30TB free. Filesystem has 6 snapshots, basically 3
incremental rsync's of 2 different external filesystems. Not sure how
to proceed, balance -dusage=5 then try and remount, doesn't balance
need rw?
# btrfs file
I can't help about your issue, but also I can't resist to ask: if I read
correctly
the data you have 2x 30TB disks, and 2x 40TB disks. It is correct ?
Are physical disk or virtual ones ?
On 2015-08-19 15:23, E V wrote:
linux 4.1.4 forced read-only during an rsync, complaining about lack
of
two to dig more..
Aug 16 04:41:31 [1082957.226817] BTRFS: error (device sdb) in
__btrfs_free_extent:6235: errno=-28 No space left
Aug 16 04:41:31 [1082957.226819] BTRFS info (device sdb): forced readonly
::
Aug 16 04:41:31 [1082957.289289] BTRFS: error (device sdb) in
