centos 6.0  安装iscsi笔记

一、安装iscsi-target

   1.用光盘里的文件安装yum install  scsi-target-utils.i686

  2.配置文件在/etc/tgt/targets.conf

  default-driver iscsi

<target   iqn.2011-11.cn.exampl:server.disk1.host1>
    backing-store /dev/mapper/VolGroup-newlv           #VolGroup-newlv是划分的lv
</target>

3.启动target:service tgtd start

4.定义target

      tgtadm --lld iscsi --op new --mode target --tid 1 --targetname iqn.2011-

11.cn.exampl:server.disk1.host1

5.将空间划分给target lun1:tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 --backing-store /dev/mapper/VolGroup-newlv

6.确定target信息:tgtadm --lld iscsi --op show --mode target

# tgtadm --lld iscsi --op show --mode target

Target 1: iqn.2011-11.com.example:server.disk1.host1
    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
        LUN: 1
            Type: disk
            SCSI ID: IET     00010001
            SCSI SN: beaf11
            Size: 2147 MB
            Online: Yes
            Removable media: No
            Backing store type: rdwr
            Backing store path: /dev/mapper/VolGroup-newlv
    Account information:
    ACL information:
        ALL
 

二、安装iscsi initiator

1.yum 安装 iscsi-initiator-utils.i686

2.启动iscsi

service iscsid start   (如果运行这个命令后还是stopped,运行server iscsid force-start)

3.查找target

[root@web1 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.60.37

192.168.60.37:3260,1 iqn.2011-11.com.example:storage.disk2.sys1.xyz
4.登陆target

[root@web1 ~]#  iscsiadm --mode node --portal -T iqn.2011-11.com.example:storage.disk2.sys1.xyz -p 192.168.60.37 -l

Logging in to [iface: default, target: iqn.2011-11.com.example:storage.disk2.sys1.xyz, portal: 192.168.60.37,3260]
Login to [iface: default, target: iqn.2011-11.com.example:storage.disk2.sys1.xyz, portal: 192.168.60.37,3260] successful.
 

5.fdisk -l       或者  sfdisk -s   查看

Disk /dev/sdb: 2147 MB, 2147483648 bytes        这个是多出的

6.分区、格式化iSCSI磁盘设备,并挂载使用

   1)fdisk /dev/sdb (格式化完为/dev/sdb1)        2) partprobe      3)mkfs.ext4 /dev/sdb1  

 4)vim /etc/fstab     实现开机自动挂载

/dev/sdb1    /iscsi    ext4    _netdev    0  0

5)mkdir /iscsi             6)mount /iscsi   

7.查看[root@web1 ~]# df -h

文件系统              容量  已用  可用 已用%% 挂载点
/dev/mapper/VolGroup-lv_root
                       14G  2.9G  9.7G  23% /
tmpfs                 302M  272K  302M   1% /dev/shm
/dev/sda1             485M   29M  431M   7% /boot
/dev/sdb1             2.0G   35M  1.9G   2% /iscsi
 

 

如果在连的时候,有连接不上的情况,请检查防火墙

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