Configure iSCSI Target2015/05/06

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    +----------+----------+   client.srv.world   |
|                      |                     |                      |
+----------------------+                     +----------------------+

[1]	Install administration tools.

root@dlp:~#

aptitude -y install iscsitarget iscsitarget-dkms

[2]	Configure iSCSI Target . For example, create a disk image under the [/iscsi_disks] directory and set it as a shared disk.

# create a disk image

root@dlp:~#

mkdir /iscsi_disks

root@dlp:~#

dd if=/dev/zero of=/iscsi_disks/disk01.img count=0 bs=1 seek=80G

root@dlp:~#

vi /etc/default/iscsitarget

# change

ISCSITARGET_ENABLE=

true

root@dlp:~#

vi /etc/iet/ietd.conf

# add follows to the end

# if you set some devices, add <target>***</target> and set the same way with follows

# naming rule : [ iqn.yaer-month.domain:any name ]

Target iqn.2015-05.world.srv:target00

# provided devicce as a iSCSI target

Lun 0 Path=/iscsi_disks/disk01.img,Type=fileio

# iSCSI Initiator's IP address you allow to connect

initiator-address 10.0.0.31

# authentication info ( set anyone you like for "username", "password" )

incominguser username password

root@dlp:~#

systemctl restart iscsitarget

# confirm status

root@dlp:~#

ietadm --op show --tid=1

Wthreads=8
Type=0
QueuedCommands=32
NOPInterval=0
NOPTimeout=0

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