DRBD脑裂解决方法

时间：2023-12-30 23:21:02

1.查看主服务器

[root@master ~]# /etc/init.d/drbd status

drbd driver loaded OK; device status:

version: 8.4. (api:/proto:-)

GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, -- ::

m:res      cs          ro               ds                 p       mounted  fstype

: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. (api:/proto:-)

GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, -- ::

m:res      cs          ro                 ds                 p       mounted  fstype

: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. (api:/proto:-)

GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, -- ::

 : cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r-----

    ns: nr: dw: dr: al: bm: lo: pe: ua: ap: ep: wo:d oos:

    [>....................] sync'ed:  4.7% (257728/264412)K

    finish: :: speed: , (,) 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. (api:/proto:-)

GIT-hash: 599f286440bd633d15d5ff985204aff4bccffadd build by root@master.luodi.com, -- ::

m:res      cs         ro                 ds                 p  mounted  fstype

:example  Connected  Secondary/Primary  UpToDate/UpToDate  C

[root@slave ~]#

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