DRBD integrated heartbeat for automatic selection of main and automatic mounts

First verify that the heartbeat status is normal and that there is no secondary IP

[[Email protected] data]# IP add|egrep "0.17|0.18"

inet 10.0.0.17/24 BRD 10.0.0.255 scope Global secondary eth0

[[Email protected]/]# IP add|egrep "0.17|0.18"

inet 10.0.0.18/24 BRD 10.0.0.255 scope Global secondary eth0

Stop a DRBD high available and view:

[[Email protected] data]# IP add|egrep "0.17|0.18"

[Email protected] data]#

[[Email protected]/]# 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

[Email protected]/]#

To view the DRBD status of two machines:

[Email protected]/]# CAT/PROC/DRBD

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

git-hash:833d830e0152d1e457fa7856e71e11248ccf3f70 build by [email protected], 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

[Email protected]/]# CAT/PROC/DRBD

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

git-hash:833d830e0152d1e457fa7856e71e11248ccf3f70 build by [email protected], 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

Show results as from----from state

It is now necessary to manage DRBD through heartbeat, one of which is promoted to the primary state, and the/etc/ha.d/haresources file needs to be modified

[Email protected]/]# cat/etc/ha.d/haresources

Data-1-1 drbddisk::d ata ipaddr::10.0.0.17/24/eth0

Data-1-2 Ipaddr::10.0.0.18/24/eth0

[Email protected]/]# cat/etc/ha.d/haresources

Data-1-1 drbddisk::d ata ipaddr::10.0.0.17/24/eth0

Data-1-2 Ipaddr::10.0.0.18/24/eth0

Then restart the heartbeat program:

[Email protected]/]#/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.

View Status:

[Email protected]/]# CAT/PROC/DRBD

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

git-hash:833d830e0152d1e457fa7856e71e11248ccf3f70 build by [email protected], 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

[Email protected]/]#/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.

View Status:

[Email protected]/]# CAT/PROC/DRBD

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

git-hash:833d830e0152d1e457fa7856e71e11248ccf3f70 build by [email protected], 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

When DRBD is started, and both roles are secondary , start Heartbeat, which will help you select the master:

according to/etc/ha.d/haresources you set the parameters drbddisk::d ata to choose.

Automatically mount the/dev/drbd0, you need to configure the parameters inside the/etc/ha.d/haresources

[Email protected] ~]# cat/etc/ha.d/haresources

Data-1-1 drbddisk::d ata 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 Equivalence

This article is from the "Linux" blog, so be sure to keep this source http://chenjisong.blog.51cto.com/7858025/1718539

DRBD integrated heartbeat for automatic selection of main and automatic mounts