> So.. it seems that data is deduplicated, zpool has
> 54.1G of free space, but I can use only 40M.
>
> It's x86, ONNV revision 10924, debug build, bfu'ed from b125.
I think I'm observing the same (with changeset 10936) ...
I created a 2GB file, and a "tank" zpool on top of that file,
with compression and dedup enabled:
mkfile 2g /var/tmp/tank.img
zpool create tank /var/tmp/tank.img
zfs set dedup=on tank
zfs set compression=on tank
Now I tried to create four zfs filesystems,
and filled them by pulling and updating
the same set of onnv sources from mercurial.
One copy needs ~ 800MB of disk space
uncompressed, or ~ 520MB compressed.
During the 4th "hg update":
> hg update
abort: No space left on device:
/tank/snv_128_yy/usr/src/lib/libast/sparcv9/src/lib/libast/FEATURE/common
> zpool list tank
NAME SIZE USED AVAIL CAP DEDUP HEALTH ALTROOT
tank 1,98G 720M 1,28G 35% 3.70x ONLINE -
> zfs list -r tank
NAME USED AVAIL REFER MOUNTPOINT
tank 1,95G 0 26K /tank
tank/snv_128 529M 0 529M /tank/snv_128
tank/snv_128_jk 530M 0 530M /tank/snv_128_jk
tank/snv_128_xx 530M 0 530M /tank/snv_128_xx
tank/snv_128_yy 368M 0 368M /tank/snv_128_yy
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