Volume space utilization mismatch

sran · ‎2015-07-14

Filesystem               total       used      avail capacity Mounted on
/vol/abc/     2050GB     1131GB      919GB      55% /vol/abc/
/vol/abc/.snapshot      512GB        0TB      512GB       0% /vol/abc/.snapshot

WOKFAS0422>

lun show -v /vol/abc/lun1
        /vol/abc/lun1    2.0t (2199291691008) (r/w, online, mapped)
                Comment:
                Serial#: AvKdX?CkBR7G
                Share: none
                Space Reservation: enabled
                Multiprotocol Type: vmware
                Maps: PBR04=96 PBR03=96 CLUSTER=96
                Occupied Size:    1.6t (1789095673856)
                Creation Time: Sun Apr 20 09:47:34 BST 2014
                Cluster Shared Volume Information: 0x0

Here, the used capacity is 1131GB and a 2TB LUN is provisioned from the volume which has space reservation enabled. How is this possible? Isnt the used capacity should be atleast 2TB in this case? Please explain.

Filesystem total used avail capacity Mounted on/vol/abc/ 2050GB 1131GB 919GB 55% /vol/abc//vol/abc/.snapshot 512GB 0TB 512GB 0% /vol/abc/.snapshotWOKFAS0422> lun show -v /vol/abc/lun1 /vol/abc/lun1 2.0t (2199291691008) (r/w, online, mapped) Comment: Serial#: AvKdX?CkBR7G Share: none Space Reservation: enabled Multiprotocol Type: vmware Maps: PBR04=96 PBR03=96 CLUSTER=96 Occupied Size: 1.6t (1789095673856) Creation Time: Sun Apr 20 09:47:34 BST 2014 Cluster Shared Volume Information: 0x0Here, the used capacity is 1131GB and a 2TB LUN is provisioned from the volume which has space reservation enabled. How is this possible? Isnt the used capacity should be atleast 2TB in this case? Please explain.