Configure iSCSI Initiator (CentOS)2014/08/05 |
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Configure iSCSI Initiator.
This example is based on the environment below.
+----------------------+ | +----------------------+ | [ iSCSI Target ] |10.0.0.30 | 10.0.0.31| [ iSCSI Initiator ] | | dlp.srv.world +----------+----------+ www.srv.world | | | | | +----------------------+ +----------------------+ |
| [1] | Configure iSCSI Initiator. |
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[root@www ~]#
yum -y install iscsi-initiator-utils
[root@www ~]#
vi /etc/iscsi/iscsid.conf # line 56: uncomment node.session.auth.authmethod = CHAP # line 60,61: uncomment and set username and password which set on iSCSI Target node.session.auth.username = username node.session.auth.password = password
# discover target [root@www ~]# iscsiadm -m discovery -t sendtargets -p 10.0.0.30 Starting iscsid: Loading iSCSI transport class v2.0-870. [ OK ] 10.0.0.30:3260,1 iqn.2014-08.world.srv:target00 # confirm status after discovery [root@www ~]# iscsiadm -m node -o show # BEGIN RECORD 6.2.0-873.10.el6 node.name = iqn.2014-08.world.srv:target00 node.tpgt = 1 node.startup = automatic node.leading_login = No ... ... ... node.conn[0].iscsi.IFMarker = No node.conn[0].iscsi.OFMarker = No # END RECORD # login to target [root@www ~]# iscsiadm -m node --login Logging in to [iface: default, target: iqn.2014-08.world.srv:target00, portal: 10.0.0.30,3260] (multiple) Login to [iface: default, target: iqn.2014-08.world.srv:target00, portal: 10.0.0.30,3260] successful. # show established session [root@www ~]# iscsiadm -m session -o show tcp: [1] 10.0.0.30:3260,1 iqn.2014-08.world.srv:target00 # show partitions [root@www ~]# cat /proc/partitions major minor #blocks name 8 0 209715200 sda 8 1 512000 sda1 8 2 209202176 sda2 253 0 200966144 dm-0 253 1 8232960 dm-1 8 16 83886080 sdb # added new device provided from target as [sdb]
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| [2] | It's possible to use iSCSI device like follows. |
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[root@www ~]#
yum -y install parted # create a label [root@www ~]# parted --script /dev/sdb "mklabel msdos" # create a partition [root@www ~]# parted --script /dev/sdb "mkpart primary 0% 100%" # format with EXT4 [root@www ~]# mkfs.ext4 /dev/sdb1
# mount [root@www ~]# mount /dev/sdb1 /mnt [root@www ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg_dlp-lv_root
ext4 189G 1.1G 179G 1% /
tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm
/dev/sda1 ext4 485M 75M 385M 17% /boot
/dev/sdb1 ext4 79G 184M 75G 1% /mnt
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