[root@kvm7 ~]# iscsiadm -m node -T iqn.2015-08.wang.deyu:kvm5 -p 192.168.122.5:3260 -u Logging out of session [sid: 1, target: iqn.2015-08.wang.deyu:kvm5, portal: 192.168.122.5,3260] Logout of [sid: 1, target: iqn.2015-08.wang.deyu:kvm5, portal: 192.168.122.5,3260] successful.
[root@kvm7 ~]# iscsiadm -m node -o delete -T iqn.2015-08.wang.deyu:kvm5
[root@kvm7 ~]# iscsiadm -m session iscsiadm: No active sessions.
[root@kvm7 ~]# iscsiadm -m discoverydb -t sendtargets -p 192.168.122.5:3260 -o delete
[root@kvm7 ~]# ll /var/lib/iscsi/nodes/ total 0