本地端挂载远程服务器的磁盘或者分区当成本地磁盘使用，目前有两台机器，分别是foundation(服务
器端192.168.122.1/24)和Desktop(终端192.168.122.2/24),先配置服务器端：以RHEL7为例，准备一个分区/dev/sda5
#yum -y install targetcli //安装软件 #systemctl enable target.service //设置开机自启 #systemctl start target.service //启动服务 #targetcli //进入命令行
进入到/> cd backstores/block/目录，创建后端区域磁盘,名字为back,这里使用的是分区/dev/sda5
/> cd backstores/block/ /> create back /dev/sda5 /backstores/block> cd ../../iscsi/ /iscsi> create iqn.2015-09.com.example:rhce //创建本地链接名称
进入到tpg1目录，创建acls,由于只有一个lun0，故这里可以不指定
/iscsi/iqn.20...hce/tpg1/acls>create iqn.2015-09.com.example.foundation:888
进入到luns目录，创建对应关系
/iscsi/iqn.20...hce/tpg1/luns> create /backstores/block/back
指定端口
create ip_address=192.168.122.1 ip_port=3260
最后的目录结构为：
/> ls o- / ................................................................................................... [...] o- backstores ........................................................................................ [...] | o- block ............................................................................ [Storage Objects: 1] | | o- back ...................................................... [/dev/sda5 (2.0GiB) write-thru activated] | o- fileio ........................................................................... [Storage Objects: 0] | o- pscsi ............................................................................ [Storage Objects: 0] | o- ramdisk .......................................................................... [Storage Objects: 0] o- iscsi ...................................................................................... [Targets: 1] | o- iqn.2015-09.com.example:rhce ................................................................ [TPGs: 1] | o- tpg1 ......................................................................... [no-gen-acls, no-auth] | o- acls .................................................................................... [ACLs: 1] | | o- iqn.2015-09.com.example.foundation:888 ......................................... [Mapped LUNs: 1] | | o- mapped_lun0 ............................................................ [lun0 block/back (rw)] | o- luns .................................................................................... [LUNs: 1] | | o- lun0 ................................................................... [block/back (/dev/sda5)] | o- portals .............................................................................. [Portals: 1] | o- 192.168.122.1:3260 ......................................................................... [OK] o- loopback ................................................................................... [Targets: 0]
接下来配置防火墙
#firewall-cmd --permanent --add-port=3260/tcp --zone=public #firewall-cmd --permanent --add-port=3260/udp --zone=public #firewall-cmd --reload
现在将视线转到desktop端
#yum install iscsi-* #vim /etc/iscsi/initiatorname.iscsi //将其中的默认的名字改为服务器端中acls里设置的名字 #systemctl enable iscsi #systemctl enable iscsid #systemctl start iscsi #systemctl start iscsid #iscsiadm -m discovery -t st -p 192.168.122.1:3260 //发现设备 #iscsiadm --node -l //登陆
登陆成功后fdisk -l即可看到新增的一块磁盘，接下来可以对磁盘进行格式化和挂载，即可正常使用
