Centos上iscsi-target使用lvm卷作为Lun的设备，我们为TARET配置LUN的时候，可以使用文件(fileio)，磁盘，或者逻辑卷，在IP-SAN存储网络中，存储客户端叫做iSCSI Initiator，存储服务器叫做iSCSI Target。
在下面的例子当中，我们的环境
192.168.1.110 iSCSI Target
192.168.1.152 iSCSI Intiator
首先我们要新建一个逻辑卷组，请保证你的磁盘有足够的空间，如果没有足够的空间，请添加磁盘
# create a phisical 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 100G -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
# 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.2013-06.world.server:target0>
# provided devicce as a iSCSI target
backing-store /dev/vg_target00/lv_target00
# iSCSI Initiator’s IP address you allow to connect
initiator-address 192.168.1.152
# authentication info ( set anyone you like for “username”, “password” )
incominguser username password
</target>
[root@dlp ~]#
/etc/rc.d/init.d/tgtd start
Starting SCSI target daemon:
[ OK ]
[root@dlp ~]#
chkconfig tgtd on
[root@dlp ~]#
tgtadm –mode target –op show
# confirm status
Target 1: iqn.2011-07.world.server:target0
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
Online: Yes
Removable media: No
Backing store type: rdwr
Backing store path: None
Account information:
username
ACL information:
10.0.0.31
