Configure iSCSI Target (targetcli)2017/12/18 |
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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 ~]# dnf -y install targetcli
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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. |
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# enter the admin console [root@dlp ~]# targetcli targetcli shell version 2.1.fb46 Copyright 2011-2013 by Datera, Inc and others. For help on commands, type 'help'.
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cd backstores/fileio
# create a disk-image with the name [disk01] on [/var/lib/iscsi_disks/disk01.img] with 10G /backstores/fileio> create disk01 /var/lib/iscsi_disks/disk01.img 10G Created fileio disk01 with size 10737418240
/backstores/fileio>
cd /iscsi
# create a target /iscsi> create iqn.2017-12.world.srv:storage.target01 Created target iqn.2017-12.world.srv:storage.target01. Created TPG 1. Global pref auto_add_default_portal=true Created default portal listening on all IPs (0.0.0.0), port 3260.
/iscsi>
cd iqn.2017-12.world.srv:storage.target01/tpg1/luns
# set LUN /iscsi/iqn.20...t00/tpg1/luns> create /backstores/fileio/disk01 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.2017-12.world.srv:www.srv.world Created Node ACL for iqn.2017-12.world.srv:www.srv.world Created mapped LUN 0.
/iscsi/iqn.20...t00/tpg1/acls>
cd iqn.2017-12.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 Global pref auto_save_on_exit=true Last 10 configs saved in /etc/target/backup. Configuration saved to /etc/target/saveconfig.json # after configuration above, the target enters in listening like follows [root@dlp ~]# ss -napt | grep 3260 LISTEN 0 256 *:3260 *:*[root@dlp ~]# systemctl enable target
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| [3] | If Firewalld is running, allow iSCSI Target service. |
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[root@dlp ~]# firewall-cmd --add-service=iscsi-target --permanent success [root@dlp ~]# firewall-cmd --reload success |
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