Iscsiadm how to remove and read add sigle iscsi lun in RHEL

++ To see what are the iscsi session in the server.

[root@<< node-1r>> bin]# iscsiadm -m session
tcp: [1] <<Iscsi_IP>>:<<Iscsi_Port>>,1 -52aed6-1020955b2-73f0018d44551483-<<storagel-server>>-fra01
tcp: [10] <<Iscsi_IP>>:<<Iscsi_Port>>,2 .dell:powervault.md3200i.02140000000004de47c62
tcp: [11] <<Iscsi_IP>>:<<Iscsi_Port>>,1 dell:powervault.md3200i.000000004de47c62
tcp: [12] <<Iscsi_IP>>:<<Iscsi_Port>>,1 dell:powervault.md3200i.6782bcb000302140000000004de47c62
tcp: [2] <<Iscsi_IP>>:<<Iscsi_Port>>,1 equallogic:4-52aed6-08f0955b2-cb40018d44351483-<<storagel-server>>-data01
tcp: [3] <<Iscsi_IP>>:<<Iscsi_Port>>,1 equallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01
tcp: [4] <<Iscsi_IP>>:<<Iscsi_Port>>,1 equallogic:4-52aed6-e9a0955b2-28600231d0f53e6e-<<storagel-server>>-data01-extent
tcp: [5] <<Iscsi_IP>>:<<Iscsi_Port>>,1 dell:powervault.md3200i.6782bc000004de47c62
tcp: [6] <<Iscsi_IP>>:<<Iscsi_Port>>,1 dell:powervault.md3200i.6782bc0000004de47c62
tcp: [7] <<Iscsi_IP>>:<<Iscsi_Port>>,2 dell:powervault.md3200i.6782bcb000300004de47c62
tcp: [8] <<Iscsi_IP>>:<<Iscsi_Port>>,2 dell:powervault.md3200i.6782bc00004de47c62
tcp: [9] <<Iscsi_IP>>:<<Iscsi_Port>>,2 dell:powervault.md3200i.6782bcde47c62

++ To remove a single lun
[root@<< node-1r>> bin]# iscsiadm -m node -u -T iqn.2001-05.com.equallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01 -p <<Iscsi_IP>>




 
Logging out of session [sid: 3, target: equallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01, portal: <<Iscsi_IP>>,<<Iscsi_Port>>]
Logout of [sid: 3, target: equallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01, portal: <<Iscsi_IP>>,<<Iscsi_Port>>] successful.

++ To re-attach the lun

[root@<< node-1r>> bin]# iscsiadm -m node -l -T iqn.2001-05.com.equallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01 -p <<Iscsi_IP>>

 
Logging in to [iface: default, target: .equallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01, portal: <<Iscsi_IP>>,<<Iscsi_Port>>] (multiple)
Login to [iface: default, target: quallogic:4-52aed6-1570955b2-0fc0018d44851483-<<storagel-server>>-ocr01, portal: <<Iscsi_IP>>,<<Iscsi_Port>>] successful.
[root@<< node-1r>> bin]#