Date: Tue, 9 Aug 2011 15:34:00 +0200 From: Ludvig Strigeus <strigeus@gmail.com> To: freebsd-fs@freebsd.org Subject: Free space of 'zfs list' vs 'zpool list' Message-ID: <CAHT-BTQbrCT1dGtSXb21GTp9xyW6Z8JwfUtMb_TJvDptDbL27w@mail.gmail.com>
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I use zfs as root file system in a raidz1 configuration with 4x1.5TB disks.
zpool list says 150G available while zfs list says 47.1GB available. I do
not use any reservations but compression is enabled.
Due to the raidz with 4 disks, I would expect zfs list to say 150GB * 75% =
112.50GB free, not 47.1GB. Can someone explain where the 65GB have gone?
uname -a:
FreeBSD ludde.dyndns.org 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17
02:41:51 UTC 2011 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
amd64
zpool list:
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
tank 5.44T 5.29T 150G 97% ONLINE -
zfs list:
NAME USED AVAIL REFER MOUNTPOINT
tank 3.96T 47.1G 28.4K legacy
tank/data 3.95T 47.1G 3.95T /data
... other file systems omitted ...
zfs list -t snapshot:
NAME USED AVAIL REFER MOUNTPOINT
tank/data@2011-08-05 385M - 3.60T -
zpool status:
NAME STATE READ WRITE
CKSUM
tank ONLINE 0 0
0
raidz1 ONLINE 0 0
0
gptid/da8c85e1-f9fa-11de-a19c-001731eee65f ONLINE 0 0
0
gptid/db86c6a9-f9fa-11de-a19c-001731eee65f ONLINE 0 0
0
gptid/dc4efa95-f9fa-11de-a19c-001731eee65f ONLINE 0 0
0
gptid/dcd40f4a-f9fa-11de-a19c-001731eee65f ONLINE 0 0
0
Thanks,
Ludde
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