Just My Life

[root@rac1 ~]# iscsiadm -m discovery -t sendtargets -p 10.30.1.140  #คำสั่ง discovery
10.30.1.140:3260,1 iqn.1994-05.com.redhat:rac1
10.30.1.140:3260,1 iqn.1994-05.com.redhat:rac2
[root@rac1 ~]#
[root@rac1 ~]# /etc/init.d/iscsi restart
Logging out of session [sid: 1, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]
Logout of [sid: 1, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]: successful
Stopping iSCSI daemon:
iscsid dead but pid file exists                            [  OK  ]
Starting iSCSI daemon:                                     [  OK  ]
                                                           [  OK  ]
Setting up iSCSI targets: Logging in to [iface: default, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]
Logging in to [iface: default, target: iqn.1994-05.com.redhat:rac2, portal: 10.30.1.140,3260]
Login to [iface: default, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]: successful
Login to [iface: default, target: iqn.1994-05.com.redhat:rac2, portal: 10.30.1.140,3260]: successful
                                                           [  OK  ]
[root@rac1 ~]#
[root@rac1 ~]# fdisk -l

Disk /dev/sda: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        3263    26105625   8e  Linux LVM

Disk /dev/sdb: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       10240    10485744   83  Linux

Disk /dev/sdc: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1       10240    10485744   83  Linux

Disk /dev/sdd: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1       10240    10485744   83  Linux

Disk /dev/sde: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sde1               1       10240    10485744   83  Linux
[root@rac1 ~]#
[root@rac1 ~]# iscsiadm -m node -p 10.30.1.140 -T iqn.1994-05.com.redhat:rac2 -o delete
iscsiadm: This command will remove the record [iface: default, target: iqn.1994-05.com.redhat:rac2, portal: 10.30.1.140,3260], but a session is using it. Logout session then rerun command to remove record.
iscsiadm: Could not execute operation on all records. Err 22.
[root@rac1 ~]#
[root@rac1 ~]# iscsiadm -m node -p 10.30.1.140 -T iqn.1994-05.com.redhat:rac2 -u   #คำสั่ง logout จาก target
Logging out of session [sid: 2, target: iqn.1994-05.com.redhat:rac2, portal: 10.30.1.140,3260]
Logout of [sid: 2, target: iqn.1994-05.com.redhat:rac2, portal: 10.30.1.140,3260]: successful
[root@rac1 ~]#
[root@rac1 ~]# iscsiadm -m node -p 10.30.1.140 -T iqn.1994-05.com.redhat:rac2 -o delete    #คำสั่งลบ target
[root@rac1 ~]#
[root@rac1 ~]# /etc/init.d/iscsi restart   #คำสั่ง restart iscsi-initiator-utils
Logging out of session [sid: 1, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]
Logout of [sid: 1, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]: successful
Stopping iSCSI daemon:
iscsid dead but pid file exists                            [  OK  ]
Starting iSCSI daemon:                                     [  OK  ]
                                                           [  OK  ]
Setting up iSCSI targets: Logging in to [iface: default, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]
Login to [iface: default, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]: successful
                                                           [  OK  ]
[root@rac1 ~]#
[root@rac1 ~]# fdisk -l

Disk /dev/sda: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        3263    26105625   8e  Linux LVM

Disk /dev/sdb: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       10240    10485744   83  Linux

Disk /dev/sdc: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1       10240    10485744   83  Linux
[root@rac1 ~]# iscsiadm -m node -p 10.30.1.140 -T iqn.1994-05.com.redhat:rac1 -u
Logging out of session [sid: 1, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]
Logout of [sid: 1, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]: successful
[root@rac1 ~]#
[root@rac1 ~]# fdisk -l

Disk /dev/sda: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        3263    26105625   8e  Linux LVM
[root@rac1 ~]# iscsiadm -m node -p 10.30.1.140 -T iqn.1994-05.com.redhat:rac1 -l #คำสั่ง login เข้าใช้งาน target
Logging in to [iface: default, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]
Login to [iface: default, target: iqn.1994-05.com.redhat:rac1, portal: 10.30.1.140,3260]: successful
[root@rac1 ~]#
[root@rac1 ~]# fdisk -l    #คำสั่งแสดง partition

Disk /dev/sda: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        3263    26105625   8e  Linux LVM

Disk /dev/sdb: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       10240    10485744   83  Linux

Disk /dev/sdc: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1       10240    10485744   83  Linux
[root@rac1 ~]#