Configure iSCSI Initiator2014/12/13 |
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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/initiatorname.iscsi # change to the same IQN you set on the iSCSI target server InitiatorName= iqn.2014-12.world.srv:www.srv.world
[root@www ~]#
vi /etc/iscsi/iscsid.conf # line 54: uncomment node.session.auth.authmethod = CHAP # line 58,59: uncomment and specify the username and password you set on the iSCSI target server node.session.auth.username = username node.session.auth.password = password
# discover target [root@www ~]# iscsiadm -m discovery -t sendtargets -p 10.0.0.30 10.0.0.30:3260,1 iqn.2014-12.world.srv:storage.target00 # confirm status after discovery [root@www ~]# iscsiadm -m node -o show # BEGIN RECORD 6.2.0.873-24 node.name = iqn.2014-12.world.srv:storage.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 the target [root@www ~]# iscsiadm -m node --login Logging in to [iface: default, target: iqn.2014-12.world.srv:storage.target00, portal: 10.0.0.30,3260] (multiple) Login to [iface: default, target: iqn.2014-12.world.srv:storage.target00, portal: 10.0.0.30,3260] successful. # confirm the established session [root@www ~]# iscsiadm -m session -o show tcp: [1] 10.0.0.30:3260,1 iqn.2014-12.world.srv:storage.target00 (non-flash) # confirm the partitions [root@www ~]# cat /proc/partitions major minor #blocks name 11 0 1999872 sr0 8 0 157286400 sda 8 1 512000 sda1 8 2 156773376 sda2 253 0 52428800 dm-0 253 1 6225920 dm-1 253 2 98050048 dm-2 8 16 20971520 sdb # added new device provided from the target server as "sdb"
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| [2] | After setting iSCSI devide, configure on Initiator to use it like follwos. |
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# create label [root@www ~]# parted --script /dev/sdb "mklabel msdos" # create partiton [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/fedora--server-root ext4 50G 1.4G 46G 3% / devtmpfs devtmpfs 6.0G 0 6.0G 0% /dev tmpfs tmpfs 6.0G 0 6.0G 0% /dev/shm tmpfs tmpfs 6.0G 564K 6.0G 1% /run tmpfs tmpfs 6.0G 0 6.0G 0% /sys/fs/cgroup tmpfs tmpfs 6.0G 0 6.0G 0% /tmp /dev/sda1 ext4 477M 116M 332M 26% /boot /dev/mapper/fedora--server-home ext4 92G 60M 88G 1% /home tmpfs tmpfs 1.2G 0 1.2G 0% /run/user/0 /dev/sdb1 ext4 20G 44M 19G 1% /mnt |
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