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硬件环境:
两台服务器每台各使用两条scsi线双路连接一台盘柜,服务器安装的系统为RHELAP5.1。
实现双链路后需要链路整合,创建multipath设备/dev/md0
用mdadm进行双路的捆绑
mdadm.conf信息如下
DEVICE /dev/cciss/c0d1 /dev/cciss/c1d0
ARRAY /dev/md0 level=multipath n=2 devices=/dev/cciss/c0d1 /dev/cciss/c1d0
现在存在的问题:
cat /proc/mdstat
Personalities : [multipath]
read_ahead 1024 sectors
md0 : active multipath cciss/c0d0[0]
unused devices : <none>
mdadm -D /dev/md0 查看设备状态时看到其中一路是removed,不是双active sync,信息如下:
/dev/md0
Version : 00.90.03
Creation Time :
Raid Level : multipath
Array Size :
Raid Devices : 2
Total Devices : 1
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time :
State : dirty, clean ,degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Number Major Minor RaidDevice State
0 104 1 1 active sync /dev/cciss/c0d0
1 0 0 1 removed
还请给予指导 十分感谢谢谢! |
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