drbd整合heartbeat实现自动选主及自动挂载

标签：drbd   heartbeat   自动挂载 自动选主

首先确认heartbeat状态是否正常，有无辅助IP

[root@data-1-1 data]# ip add|egrep "0.17|0.18" 

    inet 10.0.0.17/24 brd 10.0.0.255 scope global secondary eth0

[root@data-1-2 /]# ip add|egrep "0.17|0.18" 

    inet 10.0.0.18/24 brd 10.0.0.255 scope global secondary eth0

停止一台drbd高可用并查看：

[root@data-1-1 data]# ip add|egrep "0.17|0.18" 

[root@data-1-1 data]# 

[root@data-1-2 /]# ip add|egrep "0.17|0.18" 

    inet 10.0.0.18/24 brd 10.0.0.255 scope global secondary eth0

    inet 10.0.0.17/24 brd 10.0.0.255 scope global secondary eth0

[root@data-1-2 /]# 

查看两台机器的drbd状态：

[root@data-1-1 /]# cat /proc/drbd 

version: 8.4.6 (api:1/proto:86-101)

GIT-hash: 833d830e0152d1e457fa7856e71e11248ccf3f70 build by phil@Build64R6, 2015-04-09 14:35:00

 0: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate 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:f oos:8

[root@data-1-2 /]# cat /proc/drbd 

version: 8.4.6 (api:1/proto:86-101)

GIT-hash: 833d830e0152d1e457fa7856e71e11248ccf3f70 build by phil@Build64R6, 2015-04-09 14:35:00

 0: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate 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:0

显示结果为从----从状态

现在需要通过heartbeat管理drbd,将其中一台提升为主状态，需要修改/etc/ha.d/haresources文件

[root@data-1-1 /]# cat /etc/ha.d/haresources 

data-1-1   drbddisk::data IPaddr::10.0.0.17/24/eth0

data-1-2   IPaddr::10.0.0.18/24/eth0

[root@data-1-2 /]# cat /etc/ha.d/haresources 

data-1-1   drbddisk::data IPaddr::10.0.0.17/24/eth0

data-1-2   IPaddr::10.0.0.18/24/eth0

然后重新启动heartbeat程序：

[root@data-1-1 /]# /etc/init.d/heartbeat restart

Stopping High-Availability services: Done.

Waiting to allow resource takeover to complete:Done.

Starting High-Availability services: INFO:  Resource is stopped

Done.

查看状态：

[root@data-1-1 /]# cat /proc/drbd 

version: 8.4.6 (api:1/proto:86-101)

GIT-hash: 833d830e0152d1e457fa7856e71e11248ccf3f70 build by phil@Build64R6, 2015-04-09 14:35:00

 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----

    ns:0 nr:0 dw:0 dr:660 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:8

[root@data-1-2 /]# /etc/init.d/heartbeat restart

Stopping High-Availability services: Done.

Waiting to allow resource takeover to complete:Done.

Starting High-Availability services: INFO:  Resource is stopped

Done.

查看状态：

[root@data-1-2 /]# cat /proc/drbd               

version: 8.4.6 (api:1/proto:86-101)

GIT-hash: 833d830e0152d1e457fa7856e71e11248ccf3f70 build by phil@Build64R6, 2015-04-09 14:35:00

 0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate 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:0

drbd要启动好，两边角色都为secondary时，启动heartbeat，则它可以帮你选主：

根据/etc/ha.d/haresources里面你设置的参数drbddisk::data来选择。

自动挂载/dev/drbd0，则需要在/etc/ha.d/haresources里面配置参数

[root@data-1-2 ~]# cat /etc/ha.d/haresources 

data-1-1   drbddisk::data Filesystem::/dev/drbd0::/data::ext4 IPaddr::10.0.0.17/24/eth0

data-1-2   IPaddr::10.0.0.18/24/eth0

Filesystem::/dev/drbd0::/data::ext4 <===========>mount /dev/drbd0 /data   等价

本文出自 “linux” 博客，请务必保留此出处http://chenjisong.blog.51cto.com/7858025/1718539

drbd整合heartbeat实现自动选主及自动挂载

标签：drbd   heartbeat   自动挂载 自动选主

原文地址：http://chenjisong.blog.51cto.com/7858025/1718539