一、安装环境
1、系统：centos 5.4 x86
2、外部存储：linux下的iscsi
3、iscsi服务器配置
二、下载安装程序：
1、下载iSCSI Enterprise Target安装程序
（最新版下载地址http://sourceforge.net/projects/iscsitarget/files/iscsitarget/）
wget http://nchc.dl.sourceforge.net/sourceforge/iscsitarget/iscsitarget-1.4.20.2.tar.gz
2、解压缩
tar -zxvf iscsitarget-1.4.20.2.tar.gz cd iscsitarget-1.4.20.2
3、编译、安装
make make install
4、设置开机启动服务
chkconfig iscsi-target on service iscsi-target start
三、配置iscsi设备：
1、建立共享存储目录
mkdir /iscsishare
2、建立共享存储卷组
cd /iscsishare dd if=/dev/zero of=/iscsishare/iqn.ocr1.img bs=1M count=0 seek=150 dd if=/dev/zero of=/iscsishare/iqn.ocr2.img bs=1M count=0 seek=150 dd if=/dev/zero of=/iscsishare/iqn.vote1.img bs=1M count=0 seek=200 dd if=/dev/zero of=/iscsishare/iqn.vote2.img bs=1M count=0 seek=200 dd if=/dev/zero of=/iscsishare/iqn.vote3.img bs=1M count=0 seek=200 dd if=/dev/zero of=/iscsishare/iqn.data.img bs=1G count=0 seek=20 dd if=/dev/zero of=/iscsishare/iqn.fra.img bs=1G count=0 seek=30
3、修改iscsi配置文件
cd /etc/iet/ vim ietd.conf
iSNSServer 192.168.0.11 第20行去掉前面的#号注释，修改IP为本机地址 Target iqn.ocr1.img 第35行去掉前面的#号注释，增加上面dd所生成的存储卷名 Target iqn.ocr2.img Target iqn.vote1.img Target iqn.vote2.img Target iqn.vote3.img Target iqn.data.img Target iqn.fra.img Lun 0 Path=/iscsishare/iqn.ocr1.img,Type=fileio,ScsiId=ocr1,ScsiSN=ocr1 第58行去掉前面的#号注释，修改为存储目录路径 Lun 1 Path=/iscsishare/iqn.ocr2.img,Type=fileio,ScsiId=ocr2,ScsiSN=ocr2 Lun 2 Path=/iscsishare/iqn.vote1.img,Type=fileio,ScsiId=vote1,ScsiSN=vote1 Lun 3 Path=/iscsishare/iqn.vote2.img,Type=fileio,ScsiId=vote2,ScsiSN=vote2 Lun 4 Path=/iscsishare/iqn.vote3.img,Type=fileio,ScsiId=vote3,ScsiSN=vote3 Lun 5 Path=/iscsishare/iqn.data.img,Type=fileio,ScsiId=data,ScsiSN=data Lun 6 Path=/iscsishare/iqn.fra.img,Type=fileio,ScsiId=fra,ScsiSN=fra
4、重启iscsi-target服务
service iscsi-target restart
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