iSCSI服务器以及客户端安装配置

操作系统：CentOS 6.5 x86_64
软件版本：scsi-target-utils-1.0.24
iscsi-initiator-utils-6.2.0.873

1.安装iSCSI target
yum install scsi-target-utils -y
service tgtd start
chkconfig tgtd on

2.创建虚拟磁盘文件
dd if=/dev/zero of=/iscsi_data/ocr1.img bs=1M count=1024

dd if=/dev/zero of=/iscsi_data/ocr2.img bs=1M count=1024

dd if=/dev/zero of=/iscsi_data/ocr3.img bs=1M count=1024

dd if=/dev/zero of=/iscsi_data/data1.img bs=1M count=20480

dd if=/dev/zero of=/iscsi_data/fra1.img bs=1M count=10240

3.编辑配置文件
[root@target ~]# rpm -ql scsi-target-utils
/etc/rc.d/init.d/tgtd
/etc/sysconfig/tgtd
/etc/tgt/targets.conf
/usr/sbin/tgt-admin
/usr/sbin/tgt-setup-lun
/usr/sbin/tgtadm
/usr/sbin/tgtd
/usr/sbin/tgtimg
/usr/share/doc/scsi-target-utils-1.0.24
/usr/share/doc/scsi-target-utils-1.0.24/README
/usr/share/doc/scsi-target-utils-1.0.24/README.iscsi
/usr/share/doc/scsi-target-utils-1.0.24/README.iser
/usr/share/doc/scsi-target-utils-1.0.24/README.lu_configuration
/usr/share/doc/scsi-target-utils-1.0.24/README.mmc
/usr/share/man/man5/targets.conf.5.gz
/usr/share/man/man8/tgt-admin.8.gz
/usr/share/man/man8/tgt-setup-lun.8.gz
/usr/share/man/man8/tgtadm.8.gz

[root@target ~]# vi /etc/tgt/targets.conf
<target iqn.2016-04.target:vdisk>
backing-store /iscsi_data/ocr1.img
backing-store /iscsi_data/ocr2.img
backing-store /iscsi_data/ocr3.img
backing-store /iscsi_data/data1.img
backing-store /iscsi_data/fra1.img
</target>

4.重新启动tgtd服务
[root@target ~]# service tgtd restart
停止 SCSI target daemon： [确定]
正在启动 SCSI target daemon： [确定]
[root@target ~]# tgtadm --mode target --op show
Target 1: iqn.2016-04.target:vdisk
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: 21475 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /iscsi_data/data1.img
Backing store flags:
LUN: 2
Type: disk
SCSI ID: IET 00010002
SCSI SN: beaf12
Size: 10737 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /iscsi_data/fra1.img
Backing store flags:
LUN: 3
Type: disk
SCSI ID: IET 00010003
SCSI SN: beaf13
Size: 1074 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /iscsi_data/ocr1.img
Backing store flags:
LUN: 4
Type: disk
SCSI ID: IET 00010004
SCSI SN: beaf14
Size: 1074 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /iscsi_data/ocr2.img
Backing store flags:
LUN: 5
Type: disk
SCSI ID: IET 00010005
SCSI SN: beaf15
Size: 1074 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /iscsi_data/ocr3.img
Backing store flags:
Account information:
ACL information:
ALL

5.在Windows客户端发现服务器



登录到target，可以看到磁盘







6.Linux客户端操作
安装iscsi initiator
[root@rac1 ~]# yum install -y iscsi-initiator-utils
配置客户端的initiatorname
[root@rac1 ~]# vi /etc/iscsi/initiatorname.iscsi

设置开机启动
[root@rac1 ~]# chkconfig iscsid on

发现target服务器
[root@rac1 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.253.200:3260
192.168.253.200:3260,1 iqn.2016-04.target:vdisk
接入iscsi target
[root@rac1 ~]# iscsiadm -m node -T iqn.2016-04.target:vdisk -l
Logging in to [iface: default, target: iqn.2016-04.target:vdisk, portal: 192.168.253.200,3260] (multiple)
Login to [iface: default, target: iqn.2016-04.target:vdisk, portal: 192.168.253.200,3260] successful.
查看磁盘正常
[root@rac1 ~]# fdisk -l

Disk /dev/sdi: 21.5 GB, 21474836480 bytes
64 heads, 32 sectors/track, 20480 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdj: 10.7 GB, 10737418240 bytes
64 heads, 32 sectors/track, 10240 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdk: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdl: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdm: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

本文出自 “Linux Oracle and future” 博客，请务必保留此出处http://childres.blog.51cto.com/11420270/1763069