------------------------heartbeat--------------------------
heartbeat部署：
10.0.17.153     mysql-n1
10.0.17.154     mysql-n2

[root@mysql-n1 ~]# yum -y install heartbeat heartbeat-devel heartbeat-stonith heartbeat-pils(不知道为什么要装两遍)

复制ha.cf,haresources,authkeys

cp -a   /usr/share/doc/heartbeat-2.1.3/{ha.cf,authkeys,haresources}   /etc/ha.d


chmod 600 /etc/ha.d/authkeys

配置/etc/ha.d/ha.cf
debugfile /var/log/ha-debug
logfile /var/log/ha-log
logfacility     local0

keepalive 1
deadtime 30
warntime 5
initdead 120

ucast eth0 10.0.17.153

auto_failback off

node    mysql-n1
node    mysql-n2
crm     no

配置/etc/ha.d/authkeys
auth 1
1 sha1 HA_MYSQL

配置/etc/ha.d/haresources
mysql-n1 IPaddr::10.0.17.158/24/eth0  drbddisk::data Filesystem::/dev/drbd0::/data::ext3 mysql

启动heartbeat服务：

/etc/init.d/heartbeat start