请教:如何让iscsi映射到固定盘

Question

我的centos5.3系统使用了ISCSI 来作存储用于oracle RAC. 但是两遍绑定的盘符不一样. 61.31机器上为sdb  而 61.32机器为sdc.
我建立了一个脚本  把/dev/disk/by-path/下面的ip开头的link都删掉.
#!/bin/bash
rm -rf /dev/disk/by-path/ip*
然后把这个脚本连接到  /etc/rc.d/rc0.d/ 和/etc/rc.d/rc6.d/  下面
ln -s /mon/rmsdc.sh  K100rmdisksdc
因为两遍机器实际上目前只绑定了同一块600g的lun ,但是每台机器都是显示两个.

61.31
[root@dhrac01 by-path]# ll
total 0
lrwxrwxrwx 1 root root  9 Jun 21 17:21 ide-0:0 -> ../../hda
lrwxrwxrwx 1 root root  9 Jun 21 17:22 ip-192.168.130.101:3260-iscsi-iqn.1992-01.com.lsi:1535.600a0b800068c614000000004c144ac5-lun-0 -> ../../sdb
lrwxrwxrwx 1 root root  9 Jun 21 17:23 ip-192.168.130.102:3260-iscsi-iqn.1992-01.com.lsi:1535.600a0b800068c614000000004c144ac5-lun-0 -> ../../sdc
lrwxrwxrwx 1 root root  9 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0 -> ../../sda
lrwxrwxrwx 1 root root 10 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0-part3 -> ../../sda3
[root@dhrac01 by-path]#

61.32
[root@dhrac02 by-path]# ll
total 0
lrwxrwxrwx 1 root root  9 Jun 21 17:21 ide-0:0 -> ../../hda
lrwxrwxrwx 1 root root  9 Jun 21 17:22 ip-192.168.130.101:3260-iscsi-iqn.1992-01.com.lsi:1535.600a0b800068c614000000004c144ac5-lun-0 -> ../../sdc
lrwxrwxrwx 1 root root  9 Jun 21 17:23 ip-192.168.130.102:3260-iscsi-iqn.1992-01.com.lsi:1535.600a0b800068c614000000004c144ac5-lun-0 -> ../../sdb
lrwxrwxrwx 1 root root  9 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0 -> ../../sda
lrwxrwxrwx 1 root root 10 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jun 21 17:21 pci-0000:01:00.0-scsi-0:1:1:0-part3 -> ../../sda3
[root@dhrac02 by-path]# more /mon/

Answer 1

{:3_198:}{:3_199:}{:3_198:}{:3_198:}{:3_198:}

Answer 2

本帖最后由 ouyangzi 于 2010-06-21 17:50 编辑

想要始终对应sdb  只有一块600g的LUN  那个sdc其实就是sdb   实际上是一个lun

那个多余的sdc是个连接,每次重启都有  所以我把那个删除脚本放进去 把他们每次重启前都删掉 ,
让他开机会重新生成的   但是开机后那个61.31 还是对应sdc.  61.32 对应sdb

Answer 3

LZ想要在2台机器上

192.168.130.101:3260-iscsi-iqn.1992-01.com.lsi:1535.600a0b800068c614000000004c144ac5-lun-0 始终对应sdb
ip-192.168.130.102:3260-iscsi-iqn.1992-01.com.lsi:1535.600a0b800068c614000000004c144ac5-lun-0  始终对应sdc

？？