iSCSI 搭建（target）--软件架构设计作业

12.03.2018

作业：在老师的服务器上配置iscsi server，为每个同学分配一个空间（lun），让每个同学拿到一个账号。

服务端

首先安装管理工具

[root@crawler1 ~]# yum -y install targetcli
[root@crawler1 ~]# whereis targetcli
targetcli: /usr/bin/targetcli /usr/share/man/man8/targetcli.8.gz

#启动target服务

  [root@crawler1 ~]# systemctl start target 

#开机自启动

[root@crawler1 ~]# systemctl enable target
        Created symlink from /etc/systemd/system/multi-user.target.wants/target.service to /usr/lib/systemd/system/target.service.

SELINUX禁用：修改vi /etc/selinux/config文件
SELINUX=enforcing改成 SELINUX=disabled

使用targetcli命令进入target配置界面：

 [root@linuxidc ~]# targetcli

/> pwd
/ 
/> ls
o- / ......................................................................................................................... [...] 
  o- backstores .............................................................................................................. [...] 
  | o- block .................................................................................................. [Storage Objects: 0] 
  | o- fileio ................................................................................................. [Storage Objects: 0] 
  | o- pscsi .................................................................................................. [Storage Objects: 0] 
  | o- ramdisk ................................................................................................ [Storage Objects: 0] 
  o- iscsi ............................................................................................................ [Targets: 0] 
  o- loopback ......................................................................................................... [Targets: 0]

//循环创建disk

 for i in {07..44};
 do dd if=/dev/zero of=/iscsi_disks/disk$i.img count=0 bs=1 seek=1G;
done; 
#删除disk42 因为没有这个学号
[root@crawler1 iscsi_disks]# rm disk42.img     

#循环37次
创建target(target标准名字格式：年 月 域名倒写 名字):

//iqn.2018-12.com.crawler1:target

创建端口:
//portal创建共享端口和地址;
创建lun:
//在target上面创建一个lun;
创建acl:
//acls目录创建共享密码;
exit

  iscsi/ create iqn.2018-12.com.crawler1:target10 
  iscsi/iqn.2018-12.com.crawler1:target10/tpg1/portals create 10.175.201.51 
  iscsi/iqn.2018-12.com.crawler1:target10/tpg1/luns create /backstores/fileio/disk10 
  iscsi/iqn.2018-12.com.crawler1:target10/tpg1/acls create iqn.2018-12.com.crawler1:client10 
  
  \>ls
o- / ............................