drbd裂脑解决

时间：2010-10-11 来源：xiancai1987

当drbd出现裂脑问题，如

[root@test3 ~]# cat /proc/drbd version: 8.3.8 (api:88/proto:86-94) GIT-hash: d78846e52224fd00562f7c225bcc25b2d422321d build by [email protected], 2010-06-04 08:04:16 0: cs:WFConnection ro:Secondary/Unknown ds:UpToDate/DUnknown C r---- ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:336 解决方案如下: 解决裂脑之前，先保证主备的数据一致。先选择好一个备机在备机上执行 drbdadm secondary resource drbdadm -- --discard-my-data connect resource ######reource说明################ #resource是drbd.conf中定义的资源 resource data { protocol C; disk { on-io-error detach; } data就是resource ######reource说明################ 然后在主上执行 drbdadm connect data 检查 [root@test2 data0]# cat /proc/drbd version: 8.3.8 (api:88/proto:86-94) GIT-hash: d78846e52224fd00562f7c225bcc25b2d422321d build by [email protected], 2010-06-04 08:04:16 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r---- ns:420 nr:0 dw:256 dr:757 al:5 bm:9 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:0 [root@test3 ~]# cat /proc/drbd version: 8.3.8 (api:88/proto:86-94) GIT-hash: d78846e52224fd00562f7c225bcc25b2d422321d build by [email protected], 2010-06-04 08:04:16 0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r---- ns:0 nr:420 dw:420 dr:0 al:0 bm:9 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:0 OK！！！正常了 drbd官方对split-brain说明和手工修复
http://www.drbd.org/users-guide/s-resolve-split-brain.html

自动修复
http://www.drbd.org/users-guide/s-split-brain-notification-and-recovery.html
http://www.drbd.org/users-guide/s-configure-split-brain-behavior.html#s-automatic-split-brain-recovery-configuration