Fedora 20
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Configure iSCSI Target
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

[] - iSCSI Initiator
This example configures to create LVM partition on iSCSI Target, so it need to have enough areas to use. If your iSCSI Target does not have enough areas, add new hard drive.
[1] Configure iSCSI Target.
# create a physical volume

[root@dlp ~]#
pvcreate /dev/sdb1

  Physical volume "/dev/sdb1" successfully created
# create a volume group named "vg_target00"

[root@dlp ~]#
vgcreate -s 32M vg_target00 /dev/sdb1

  Volume group "vg_target00" successfully created
# create a logical volume named "lv_target00"

[root@dlp ~]#
lvcreate -L 80G -n lv_target00 vg_target00

  Logical volume "lv_target00" created
[root@dlp ~]#
yum -y install scsi-target-utils
[root@dlp ~]#
vi /etc/tgt/targets.conf
# add at the last line

# if you set some devices, add - and set the same way with follows

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

<target iqn.2013-12.world.srv:target00>
# provided devicce as a iSCSI target

   backing-store /dev/vg_target00/lv_target00
# iSCSI Initiator's IP address you allow to connect

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

   incominguser username password
[root@dlp ~]#
systemctl start tgtd.service

[root@dlp ~]#
systemctl enable tgtd.service

[root@dlp ~]#
tgtadm --mode target --op show
# show status

Target 1: iqn.2013-12.world.srv:target00
    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:
    Account information:
    ACL information:
Complete to configure iSCSI Target. See next step to configure iSCSI Initiator.

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