Re: ENOSPC while df shows 826.93GiB free

Hey Jorge.

I've looked at your old mail thread... and the first case you've
showed:
btrfs fi usage /mnt/disk4
Overall:
    Device size:                   7.28TiB
    Device allocated:              7.28TiB
    Device unallocated:            1.04MiB
    Device missing:                  0.00B
    Used:                          7.24TiB
    Free (estimated):             34.55GiB      (min: 34.55GiB)
    Free (statfs, df):            34.55GiB
    Data ratio:                       1.00
    Metadata ratio:                   2.00
    Global reserve:              512.00MiB      (used: 0.00B)
    Multiple profiles:                  no

Data,single: Size:7.26TiB, Used:7.22TiB (99.54%)
   /dev/md4        7.26TiB

Metadata,DUP: Size:9.50GiB, Used:8.45GiB (88.93%)
   /dev/md4       19.00GiB

System,DUP: Size:32.00MiB, Used:800.00KiB (2.44%)
   /dev/md4       64.00MiB

Unallocated:
   /dev/md4        1.04MiB


Seems similar to my problem... but far less extrem.... so that I
personally would say I could live with that.

Of data you "loose" 0.04 TB ... so 40 GiB... of metadata you "loose"
1.45 GiB


It's a bit strange IMO that you then get ENOSPC, when your metadata has
still 1GB free (thought it would reserve less?)

But still, out of 7.28 TiB, that's ~0,556%... not sooo much.


I in contrast have:
829,44 + 0,5 = 829,94 GiB "lost"
Which is out of 16.00TiB some ~5,066% lost... which seems pretty much.


Cheers,
Chris.