最近iSCSI出了一个问题：
[root@node-a ~]# iscsiadm -m node -T racme -p 192.168.88.128 -l
Logging in to [iface: default, target: racme, portal: 192.168.88.128,3260]
iscsiadm: Could not login to [iface: default, target: racme, portal: 192.168.88.128,3260]:
iscsiadm: initiator reported error (15 - already exists)
[root@node-a ~]# 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                    13            104391     83    Linux
/dev/sda2                            14                2610        20860402+    8e    Linux LVM
[root@node-a ~]#