Volume utilization doesn't make sense

[PWoodson]

I have a 6x1TB RaidZ2 volume (RAIDZ2.7.2K1B).. I have created 2 1TB zvols (Tier4.V0 and Tier4.V1). The Tier4.V0 is presented to VMWare host through iSCSI (formatted VMFS 5..54) and Tier4.V1 is presented to a Window Server 2003 through iSCSI (formatted NTFS). No dedupe or compression and copies is set to 1. It looks like I've used up the volume even though the 2 zvols I created are for 1TB and that is what is seen on each host.

Code:

[root@SAN3V] ~# zfs list
NAME                                USED  AVAIL  REFER  MOUNTPOINT
RAIDZ2.7.2K.1TB                 3.56T      0   240K  /mnt/RAIDZ2.7.2K.1TB
RAIDZ2.7.2K.1TB/Tier4.V0     1.58T      0  1.58T  -
RAIDZ2.7.2K.1TB/Tier4.V1     1.98T      0  1.98T  -
[root@SAN3V] ~# zpool list
NAME                 SIZE   USED  AVAIL    CAP  HEALTH  ALTROOT
RAIDZ2.7.2K.1TB  5.44T  5.35T  87.0G    98%  ONLINE  /mnt
[root@SAN3V] ~#
[root@SAN3V] ~# zfs get copies
NAME        PROPERTY VALUE  SOURCE
RAIDZ2.7.2K.1TB     copies        1  default
RAIDZ2.7.2K.1TB/Tier4.V0 copies        1  default
RAIDZ2.7.2K.1TB/Tier4.V1 copies        1  default

Dell PowerEdge R510
Build FreeNAS-8.2.0-RELEASE-p1-x64 (r11950)
Platform Intel(R) Xeon(R) CPU X5570 @ 2.93GHz
Memory 65509MB

 

[cyberjock]

Do you have any zfs snapshots?