linux基本命令iscsiadm,iscsiadm主要操作命令

[root@xifenfei ~]# fdisk -l

Disk /dev/sda: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1        2355       83  Linux

/dev/sda2            2356        2610     +  82  Linux swap / Solaris

Disk /dev/sdb: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sdb1               1        2610    +  83  Linux

Disk /dev/sdc: 2147 MB, bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = bytes

Disk /dev/sdc doesn’t contain a valid partition table

Disk /dev/sdd: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sdd1               1         100      +  83  Linux

/dev/sdd2             101        1000       83  Linux

查看iscsi运行情况

[root@xifenfei ~]# rpm -aq|grep iscsi

iscsi-initiator-utils-6.2.0.872-10.0.1.el5

[root@xifenfei ~]#  chkconfig –list |grep iscsi

iscsi           0:off   1:off   2:on    3:on    4:on    5:on    6:off

iscsid          0:off   1:off   2:off   3:on    4:on    5:on    6:off

[root@xifenfei ~]# ps -ef|grep iscs

root      2753     2  0 Jun21 ?        00:00:00 [iscsi_eh]

root     15793     1  0 09:08 ?        00:00:00 brcm_iscsiuio

root     15800     1  0 09:08 ?        00:00:00 iscsid

root     15802     1  0 09:08 ?        00:00:00 iscsid

root     19533 15269  0 10:11 pts/1    00:00:00 grep iscs

配置iscsi存储

[root@xifenfei ~]# iscsiadm -m discovery -t sendtargets -p 192.168.1.254:3260

192.168.1.254:3260,1 iqn.2006-01.com.openfiler:tsn.32bb

[root@xifenfei ~]# iscsiadm -m node –T iqn.2006-01.com.openfiler:tsn.32bb -p 192.168.1.254:3260 -l

Logging in to [iface: default, target: iqn.2006-01.com.openfiler:tsn.32bb, portal: 192.168.1.254,3260]

Login to [iface: default, target: iqn.2006-01.com.openfiler:tsn.32bb, portal: 192.168.1.254,3260] successful.

[root@xifenfei ~]# iscsiadm -m node –T iqn.2006-01.com.openfiler:tsn.32bb -p 192.168.1.254:3260

>–op update -n node.startup -v automatic

当前包含磁盘

[root@xifenfei ~]# fdisk -l

Disk /dev/sda: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1        2355       83  Linux

/dev/sda2            2356        2610     +  82  Linux swap / Solaris

Disk /dev/sdb: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sdb1               1        2610    +  83  Linux

Disk /dev/sdc: 2147 MB, bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = bytes

Disk /dev/sdc doesn’t contain a valid partition table

Disk /dev/sdd: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sdd1               1         100      +  83  Linux

/dev/sdd2             101        1000       83  Linux

Disk /dev/sde: 1073 MB, bytes

34 heads, 61 sectors/track, 1011 cylinders

Units = cylinders of 2074 * 512 = bytes

Disk /dev/sde doesn’t contain a valid partition table

Disk /dev/sdf: 1073 MB, bytes

34 heads, 61 sectors/track, 1011 cylinders

Units = cylinders of 2074 * 512 = bytes

Disk /dev/sdf doesn’t contain a valid partition table

Disk /dev/sdg: 1073 MB, bytes

34 heads, 61 sectors/track, 1011 cylinders

Units = cylinders of 2074 * 512 = bytes

Disk /dev/sdg doesn’t contain a valid partition table

卸载iscsi存储

[root@xifenfei ~]# iscsiadm -m node –logoutall=all

Logging out of session [sid: 3, target: iqn.2006-01.com.openfiler:tsn.32bb, portal: 192.168.1.254,3260]

Logout of [sid: 3, target: iqn.2006-01.com.openfiler:tsn.32bb, portal: 192.168.1.254,3260] successful.

[root@xifenfei ~]# iscsiadm -m node –op delete –targetname iqn.2006-01.com.openfiler:tsn.32bb

当前包含磁盘

[root@xifenfei ~]# fdisk -l

Disk /dev/sda: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1        2355       83  Linux

/dev/sda2            2356        2610     +  82  Linux swap / Solaris

Disk /dev/sdb: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sdb1               1        2610    +  83  Linux

Disk /dev/sdc: 2147 MB, bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = bytes

Disk /dev/sdc doesn’t contain a valid partition table

Disk /dev/sdd: 21.4 GB, bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = bytes

Device Boot      Start         End      Blocks   Id  System

/dev/sdd1               1         100      +  83  Linux

/dev/sdd2             101        1000       83  Linux

iscsi操作总结

增加iscsi存储

(1)发现iscsi存储:iscsiadm -m discovery -t st -p ISCSI_IP

(2)查看iscsi发现记录:iscsiadm -m node

(3)登录iscsi存储:iscsiadm -m node -T LUN_NAME -p ISCSI_IP -l

(4)开机自动: iscsiadm -m node –T LUN_NAME -p ISCSI_IP –op update -n node.startup -v automatic

删除iscsi存储

(1)登出iscsi存储 iscsiadm -m node -T LUN_NAME -p ISCSI_IP -u

(2)对出iscsi所有登录 iscsiadm -m node –logoutall=all

(3)删除iscsi发现记录:iscsiadm -m node -o delete -T LUN_NAME -p ISCSI_IP

登入需验证码的节点

(1)开启认证

iscsiadm -m node -T LUN_NAME -o update –name node.session.auth.authmethod –value=CHAP

*.使用-o同–op

(2)添加用户

iscsiadm -m node -T LUN_NAME –op update –name node.session.auth.username –value=[用户名]

(3)添加密码

iscsiadm –m node –T LUN_NAME –op update –name node.session.auth.password –value=[密码]