Hello,
I have some doubts how to get the correct information about the size
of the pool.
We are testing using a pool that contain 22 disk of 1TB each. The pool
is using a raidz with 3 disks and one spare disk.
# zpool status tank
pool: tank
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
c7t2d0 ONLINE 0 0 0
c7t3d0 ONLINE 0 0 0
c7t4d0 ONLINE 0 0 0
raidz1-1 ONLINE 0 0 0
c7t5d0 ONLINE 0 0 0
c7t6d0 ONLINE 0 0 0
c7t7d0 ONLINE 0 0 0
raidz1-2 ONLINE 0 0 0
c7t8d0 ONLINE 0 0 0
c7t9d0 ONLINE 0 0 0
c7t10d0 ONLINE 0 0 0
raidz1-3 ONLINE 0 0 0
c7t11d0 ONLINE 0 0 0
c7t12d0 ONLINE 0 0 0
c7t13d0 ONLINE 0 0 0
raidz1-4 ONLINE 0 0 0
c7t14d0 ONLINE 0 0 0
c7t15d0 ONLINE 0 0 0
c7t16d0 ONLINE 0 0 0
raidz1-5 ONLINE 0 0 0
c7t17d0 ONLINE 0 0 0
c7t18d0 ONLINE 0 0 0
c7t19d0 ONLINE 0 0 0
raidz1-6 ONLINE 0 0 0
c7t20d0 ONLINE 0 0 0
c7t21d0 ONLINE 0 0 0
c7t22d0 ONLINE 0 0 0
spares
c7t1d0 AVAIL
When i use "zpool list <pool>" the size of the pool is 19TB, and this
is not real.
# zpool list tank
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
tank 19.0T 10.9T 8.16T 57% 1.00x ONLINE -
Using "zfs list <pool>" we don't have the pool size information
# zfs list tank
NAME USED AVAIL REFER MOUNTPOINT
tank 7.24T 5.24T 40.0K /tank
Using /bin/df and /usr/gnu/bin/df we have different results about the pool size.
# /bin/df -h /tank
Filesystem size used avail capacity Mounted on
tank 12T 40K 5.2T 1% /tank
# df -h /tank
Filesystem Size Used Avail Use% Mounted on
tank 5.3T 40K 5.3T 1% /tank
The only way that we found to get the size is to add the values of
"zfs get used" and "zfs get available".
There is any command using zfs or zpool tools to get the size without
the sum. We only have this problems with raidz. On pool that use
mirror the information on zpool is correct.
Thanks
Vinicius Viteri
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