iSCSI : Configure Target (tgt)2019/07/17 |
Configure Storage Server with iSCSI.
On this example, Install and Configure tgt for iSCSI target.
A storage on a network is called iSCSI Target, a Client which connects to iSCSI Target is called 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] | Install administration tools first. |
root@dlp:~# apt -y install tgt dkms
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[2] | Configure iSCSI Target. For example, create an disk-image under the [/var/lib/iscsi_disks] directory and set it as a SCSI device. |
# create a disk-image root@dlp:~# mkdir /var/lib/iscsi_disks root@dlp:~# dd if=/dev/zero of=/var/lib/iscsi_disks/disk01.img count=0 bs=1 seek=10G
root@dlp:~#
vi /etc/tgt/conf.d/target01.conf # create new # naming rule : [ iqn.(year)-(month).(reverse of domain name):(any name you like) ] <target iqn.2019-07.world.srv:dlp.target01> # provided devicce as a iSCSI target backing-store /var/lib/iscsi_disks/disk01.img # iSCSI Initiator's IQN you allow to connect to this Target initiator-name iqn.2019-07.world.srv:www.srv.world # authentication info ( set any name you like for "username", "password" ) incominguser username password </target>
root@dlp:~#
systemctl restart tgt
# show status root@dlp:~# tgtadm --mode target --op show Target 1: iqn.2019-07.world.srv:dlp.target01 System information: Driver: iscsi State: ready I_T nexus information: LUN information: LUN: 0 Type: controller SCSI ID: IET 00010000 SCSI SN: beaf10 Size: 0 MB, Block size: 1 Online: Yes Removable media: No Prevent removal: No Readonly: No SWP: No Thin-provisioning: No Backing store type: null Backing store path: None Backing store flags: LUN: 1 Type: disk SCSI ID: IET 00010001 SCSI SN: beaf11 Size: 10737 MB, Block size: 512 Online: Yes Removable media: No Prevent removal: No Readonly: No SWP: No Thin-provisioning: No Backing store type: rdwr Backing store path: /var/lib/iscsi_disks/disk01.img Backing store flags: Account information: username ACL information: ALL iqn.2019-07.world.srv:www.srv.world |
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