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[root@xifenfei ~]# fdisk -l
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2355 18916506 83 Linux
/dev/sda2 2356 2610 2048287+ 82 Linux swap / Solaris
Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 2610 20964793+ 83 Linux
Disk /dev/sdc: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdc doesn’t contain a valid partition table
Disk /dev/sdd: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 100 803218+ 83 Linux
/dev/sdd2 101 1000 7229250 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.32b32087937b
[root@xifenfei ~]# iscsiadm -m node –T iqn.2006-01.com.openfiler:tsn.32b32087937b -p 192.168.1.254:3260 -l
Logging in to [iface: default, target: iqn.2006-01.com.openfiler:tsn.32b32087937b, portal: 192.168.1.254,3260]
Login to [iface: default, target: iqn.2006-01.com.openfiler:tsn.32b32087937b, portal: 192.168.1.254,3260] successful.
[root@xifenfei ~]# iscsiadm -m node –T iqn.2006-01.com.openfiler:tsn.32b32087937b -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, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2355 18916506 83 Linux
/dev/sda2 2356 2610 2048287+ 82 Linux swap / Solaris
Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 2610 20964793+ 83 Linux
Disk /dev/sdc: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdc doesn’t contain a valid partition table
Disk /dev/sdd: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 100 803218+ 83 Linux
/dev/sdd2 101 1000 7229250 83 Linux
Disk /dev/sde: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Disk /dev/sde doesn’t contain a valid partition table
Disk /dev/sdf: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Disk /dev/sdf doesn’t contain a valid partition table
Disk /dev/sdg: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 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.32b32087937b, portal: 192.168.1.254,3260]
Logout of [sid: 3, target: iqn.2006-01.com.openfiler:tsn.32b32087937b, portal: 192.168.1.254,3260] successful.
[root@xifenfei ~]# iscsiadm -m node –op delete –targetname iqn.2006-01.com.openfiler:tsn.32b32087937b
当前包含磁盘
[root@xifenfei ~]# fdisk -l
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2355 18916506 83 Linux
/dev/sda2 2356 2610 2048287+ 82 Linux swap / Solaris
Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 2610 20964793+ 83 Linux
Disk /dev/sdc: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdc doesn’t contain a valid partition table
Disk /dev/sdd: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 100 803218+ 83 Linux
/dev/sdd2 101 1000 7229250 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]
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