Configure iSCSI Taregt(targetcli)2016/04/23 |
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Configure Storage Server with iSCSI.
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. |
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root@dlp:~# apt-get -y install targetcli
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| [2] | Configure iSCSI Target. For example, create an disk-image under the /var/iscsi_disks directory and set it as a SCSI device. |
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# enter the admin console root@dlp:~# targetcli targetcli 3.0.pre4.1~ga55d018 (rtslib 3.0.pre4.1~g1b33ceb) Copyright (c) 2011-2014 by Datera, Inc. All rights reserved.
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cd backstores/fileio
# create a disk-image with the name "disk01" on /var/iscsi_disks/disk01.img with 10G /backstores/fileio> create disk01 /var/iscsi_disks/disk01.img 10G Using buffered mode. Created fileio disk01.
/backstores/fileio>
cd /iscsi
# create a target /iscsi> create iqn.2016-04.world.srv:storage.target00 Created target iqn.2016-04.world.srv:storage.target00. Selected TPG Tag 1. Created TPG 1. # set portal (set IP address to listen) /iscsi> cd iqn.2016-04.world.srv:storage.target00/tpg1/portals /iscsi/iqn.20.../tpg1/portals> create 0.0.0.0 Using default IP port 3260 Created network portal 0.0.0.0:3260.
/iscsi/iqn.20.../tpg1/portals>
cd ../luns
# set LUN /iscsi/iqn.20...t00/tpg1/luns> create /backstores/fileio/disk01 Selected LUN 0. Created LUN 0.
/iscsi/iqn.20...t00/tpg1/luns>
cd ../acls
# set ACL (it's the IQN of an initiator you permit to connect) /iscsi/iqn.20...t00/tpg1/acls> create iqn.2016-04.world.srv:www.srv.world Created Node ACL for iqn.2016-04.world.srv:www.srv.world:www.srv.world Created mapped LUN 0.
/iscsi/iqn.20...t00/tpg1/acls>
cd iqn.2016-04.world.srv:www.srv.world
# set UserID for authentication /iscsi/iqn.20....srv.world> set auth userid=username Parameter userid is now 'username'.
/iscsi/iqn.20....srv.world>
set auth password=password Parameter password is now 'password'.
/iscsi/iqn.20....srv.world>
exit Comparing startup and running configs... Some changes need saving. Save configuration? [Y/n]: y Saving new startup configuration # after configuration above, the target enters in listening like follows root@dlp:~# ss -napt | grep 3260 LISTEN 0 256 *:3260 *:* # set auto-start root@dlp:~# /lib/systemd/systemd-sysv-install enable target
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