linux配制iscsi

服务端centos7

1. 假定已经装好了两块磁盘/dev/sdb,/dev/sdc
2. yum install -y targetd targetcli
3. targetcli进入配制命令行
4. 通过/dev/sdb,/dev/sdc创建两个block

   /backstores/block create idisk1 /dev/sdb
   /backstores/block create idisk2 /dev/sdc
   

5. 创建一个iscsi服务

   iscsi/ create iqn.2024-08.com.sysush:server
   

6. 通过block创建两个lun

   cd iqn.2024-08.com.sysush:server/tpg1
   luns/ create /backstores/block/idisk1
   luns/ create /backstores/block/idisk2
   

7. 创建客户端认证

   acls/ create iqn.2024-08.com.sysush:client
   cd iqn.2024-08.com.sysush:client
   set auth userid=vec
   set auth password=665544332211
   

8. 退出命令行

   exit
   

9. 重启targetd服务,并查看端口是否监听

   systemctl restart targetd
   systemctl enable targetd
   ss -napt | grep 3260
   

10. 防火墙放过3260端口

    firewall-cmd --add-port=3260/tcp --permanent && firewall-cmd --reload
    

客户端(oracle linux 6.8)

1. yum -y install iscsi-initiator-utils
2. 修改/etc/iscsi/initiatorname.iscsi把InitiatorName改成刚才客户端认证的名字

   InitiatorName=iqn.2024-08.com.sysush:client
   

3. 修改/etc/iscsi/iscsid.conf,启用node.session.auth.authmethod,node.session.auth.username,node.session.auth.password

   node.session.auth.authmethod = CHAP
   node.session.auth.username = vec
   node.session.auth.password = 665544332211
   

4. 重启iscsi客户端

   service iscsid restart
   

5. 查看iscsi服务端,其中192.168.85.102是服务端的ip,如果能查到iqn.2024-08.com.sysush:server说明正常

   iscsiadm -m discovery -t st -p 192.168.85.102
   

6. 连接服务端

   iscsiadm -m node -T iqn.2024-08.com.sysush:server -p 192.168.85.102 --login
   

7. 再执行fdisk -l就能看到/dev/sdb,/dev/sdc,就能当成普通磁盘使用了