1、系统架构
2、安装软件
yum list | grep target
yum -y install scsi-target-utils.x86_64
3、修改配置文件
先准备一个硬盘进行分区 /dev/sdb1（这里省略）
vi /etc/tgt/targets.conf
16 default-driver iscsi
38 <target iqn.2017-05.com.qq:sdb1>
39 backing-store /dev/sdb1
40 initiator-address 192.168.60.0/24
41 </target>
说明，这里可以添加多个target
4、启动tgtd服务
/etc/init.d/tgtd start
5、查看iscsi设备
tgtadm --lld iscsi --op show --mode target
Target 1: iqn.2017-05.com.qq:sdb1
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, Block size: 1
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: null
Backing store path: None
Backing store flags:
LUN: 1
Type: disk
SCSI ID: IET 00010001
SCSI SN: beaf11
Size: 10742 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /dev/sdb1
Backing store flags:
Account information:
ACL information:
192.168.60.0/24
6、客户端安装配置
rpm -ivh /mnt/Packages/iscsi-initiator-utils-6.2.0.873-2.el6.i686.rpm
warning: /mnt/Packages/iscsi-initiator-utils-6.2.0.873-2.el6.i686.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEY
Preparing... ########################################### [100%]
1:iscsi-initiator-utils ########################################### [100%]
rpm -ivh /mnt/Packages/lsscsi-0.23-2.el6.i686.rpm
lsscsi 操作之前查看，只有3块scsi设备
[2:0:0:0] disk VMware, VMware Virtual S 1.0 /dev/sda
[2:0:1:0] disk VMware, VMware Virtual S 1.0 /dev/sdb
[4:0:0:0] cd/dvd NECVMWar VMware SATA CD01 1.00 /dev/sr0
/etc/init.d/iscsi restart
停止 iscsi： [确定]
正在启动 iscsi： [确定]
发现并连接iscsi设备
iscsiadm -m discovery -t st -p 192.168.60.11
192.168.60.11:3260,1 iqn.2017-05.com.qq:sdb1
192.168.60.11:3260,1 iqn.2017-05.com.qq:vg1-lv1
iscsiadm -m node -T iqn.2017-05.com.qq:sdb1 --login
Logging in to [iface: default, target: iqn.2017-05.com.qq:sdb1, portal: 192.168.60.11,3260] (multiple)
Login to [iface: default, target: iqn.2017-05.com.qq:sdb1, portal: 192.168.60.11,3260] successful.
iscsiadm -m node -T iqn.2017-05.com.qq:sdb1 -u
Logging out of session [sid: 4, target: iqn.2017-05.com.qq:sdb1, portal: 192.168.60.11,3260]
Logout of [sid: 4, target: iqn.2017-05.com.qq:sdb1, portal: 192.168.60.11,3260] successful.
lsscsi
[2:0:0:0] disk VMware, VMware Virtual S 1.0 /dev/sda
[2:0:1:0] disk VMware, VMware Virtual S 1.0 /dev/sdb
[4:0:0:0] cd/dvd NECVMWar VMware SATA CD01 1.00 /dev/sr0
[37:0:0:1] disk IET VIRTUAL-DISK 0001 /dev/sdc
tree /var/lib/iscsi/nodes/
/var/lib/iscsi/nodes/
├── iqn.2017-05.com.qq:sdb1
│ └── 192.168.60.11,3260,1
│ └── default
└── iqn.2017-05.com.qq:vg1-lv1
└── 192.168.60.11,3260,1
└── default
4 directories, 2 files
fdisk /dev/sdc
partprobe /dev/sdc
mkfs -t ext4 /dev/sdc1
mount -t ext4 /dev/sdc1 /abc
uuid挂载
blkid /dev/sdc1
vi /etc/fstab
UUID=4b042691-a7e8-480d-bd0f-4c5fa409c1db /abc ext4 defaults,_netdev 0 0
chkconfig iscsi on
验证结果：
mount -a
[root@localhost ~]# df -h
文件系统 容量 已用 可用 已用%% 挂载点
/dev/mapper/VolGroup-lv_root
50G 4.7G 43G 10% /
tmpfs 250M 72K 250M 1% /dev/shm
/dev/sda1 485M 32M 428M 7% /boot
/dev/mapper/VolGroup-lv_home
28G 172M 26G 1% /home
/dev/sdc1 1008M 34M 924M 4% /abc