DRBD脑裂解决方法

1.查看主服务器

[root@master ~]# /etc/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, 2013-11-03 00:03:40
m:res      cs          ro               ds                 p       mounted  fstype
1:example  StandAlone  Primary/Unknown  UpToDate/DUnknown  r-----
[root@master ~]# 

2.查看备服务器

[root@slave ~]# /etc/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, 2013-11-03 00:03:40
m:res      cs          ro                 ds                 p       mounted  fstype
1:example  StandAlone  Secondary/Unknown  UpToDate/DUnknown  r-----
[root@slave ~]# 

解决方法：

在备服务器操作：其中example是资源名

[root@slave ~]# drbdadm secondary example
[root@slave ~]# drbdadm --discard-my-data connect example

在主服务器操作

[root@master ~]# drbdadm connect example
[root@master ~]# cat /proc/drbd 
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, 2013-11-03 00:03:40

 1: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r-----
    ns:6852 nr:0 dw:264460 dr:8393508 al:39 bm:512 lo:0 pe:2 ua:0 ap:0 ep:1 wo:d oos:257728
    [>....................] sync'ed:  4.7% (257728/264412)K
    finish: 0:03:47 speed: 1,112 (1,112) K/sec

备机上查看：DRBD恢复正常

[root@slave ~]# /etc/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, 2013-11-03 00:03:40
m:res      cs         ro                 ds                 p  mounted  fstype
1:example  Connected  Secondary/Primary  UpToDate/UpToDate  C
[root@slave ~]#