On filer console:
filer>lun show -m
fas01> lun show -m
LUN path Mapped to LUN ID Protocol
-------------------------------------------------------------------------------------------------------------------------------
/vol/centos_iscsi/lun redhat.test.com_iscsi_SdIg 2 iSCSI
/vol/centos_iscsi/lun_centos redhat.test.com_iscsi_SdIg 0 iSCSI
/vol/centos_iscsi/lun_pe redhat.test.com_iscsi_SdIg 1 iSCSI
/vol/vol_iscsi_win_test/iometer iscsi-win 0 iSCSI
You can also find out using: filer>lun show -v
fas01> lun show -v
/vol/centos_iscsi/lun 4g (4294967296) (r/w, online, mapped)
Serial#: BWKgW]BaIqPw
Share: none
Space Reservation: enabled (not honored by containing Aggregate)
Multiprotocol Type: linux
Maps: redhat.test.com_iscsi_SdIg=2
Occupied Size: 194.5m (203952128)
Creation Time: Fri Feb 15 10:37:14 GMT 2013
Cluster Shared Volume Information: 0x0
/vol/centos_iscsi/lun_centos 12g (12884901888) (r/w, online, mapped)
Serial#: BWKgW]BaIqNE
Share: none
Space Reservation: disabled
Multiprotocol Type: linux
Maps: redhat.test.com_iscsi_SdIg=0
Occupied Size: 468.3m (491012096)
Creation Time: Thu Nov 22 13:03:18 GMT 2012
Cluster Shared Volume Information: 0x0
Using OnCommand System Manager:
Filer | Storage | LUNS | select the LUN | Edit | Click on Initiator Groups tab