centos 5挂载网络存储的实例分享(图文)

[root@jbxue ~]# yum -y install iscsi-initiator-utils
[root@jbxue ~]# service iscsi start

[root@jbxue ~]# iscsiadm -m discovery --type sendtargets --portal 192.168.6.252
192.168.6.252:3260,1 iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20
192.168.6.253:3260,1 iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20

[root@jbxue ~]# iscsiadm -m node -T iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20 -p 192.168.6.252 --login
Logging in to [iface: default, target: iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20, portal: 192.168.6.252,3260]
Login to [iface: default, target: iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20, portal: 192.168.6.252,3260]: successful

[root@jbxue ~]# cat /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.1994-05.com.redhat:fc812dcb945e

[root@jbxue ~]# iscsiadm -m node -T iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20 -p 192.168.6.252 --logout
[root@jbxue ~]# iscsiadm -m node -T iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20 -p 192.168.6.252 --login
[root@jbxue ~]# fdisk -l

Disk /dev/hda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1          13      104391   83  Linux
/dev/hda2              14        1044     8281507+  8e  Linux LVM
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      182364  1464838798+  42  SFS

[root@jbxue ~]# mkfs.ext3 /dev/sda1
[root@jbxue ~]# mkdir -p /iscsi
[root@jbxue ~]# mount /dev/sda1 /iscsi
[root@jbxue ~]# df -Th

Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
              ext3    6.6G  3.9G  2.4G  62% /
/dev/hda1     ext3     99M   12M   82M  13% /boot
tmpfs        tmpfs    123M     0  123M   0% /dev/shm
/dev/sda1     ext3     20G  173M   19G   1% /iscsi

[root@jbxue ~]# vi /etc/fstab
/dev/sda1        /iscsi     ext3       defaults        0              0

[root@jbxue ~]# vi /etc/rc6.d/K04iscsi
#!/bin/bash
. /etc/init.d/functions
umount /dev/sda1
iscsiadm -m node --logoutall=all

[root@jbxue ~]# chmod 777 /etc/rc6.d/K04iscsi

探测某台机器的Target
iscsiadm -m discovery -t sendtargets -p 192.168.6.252
列出所有 Target
iscsiadm -m node
连接所有 Target
iscsiadm -m node --loginall=all
断开所有连接
iscsiadm -m node --logoutall=all
刪除所有node信息( 需重新discovery)
iscsiadm -m node --op delete
查看目前连接状态
iscsiadm -m session
如开机服务启动只需自动连接某单个节点指定IP（若节点多网卡，而又有网卡没有接线会出现开机等待很长时间）
修改/etc/init.d/iscsi文件start部分中
iscsiadm -m node --loginall=automatic
为：
iscsiadm -m node -T iqn.1994-12.com.promise.6c.63.55.55.1.0.0.20 -p 192.168.6.252 --login