heartbeat安装参考:https://www.rootop.org/pages/3263.html
drbd安装参考 : https://www.rootop.org/pages/3295.html
注意这两篇文章种的主机名不一样,现统一用node1、node2。
其次需要配置的地方就是修改haresources文件,让heartbeat管理drbd状态、挂载操作。
[root@node1 ~]# vi /etc/ha.d/haresources
node1 IPaddr::192.168.0.177/24/eth0 drbddisk::r0 Filesystem::/dev/drbd1::/db::ext3
创建drbddisk脚本:
提供本站下载地址:https://www.rootop.org/rs/drbddisk
[root@node1 ~]# vi /etc/ha.d/resource.d/drbddisk
#!/bin/bash # # This script is inteded to be used as resource script by heartbeat # # Copright 2003-2008 LINBIT Information Technologies # Philipp Reisner, Lars Ellenberg # ### DEFAULTFILE="/usr/local/drbd" DRBDADM="/sbin/drbdadm" if [ -f $DEFAULTFILE ]; then . $DEFAULTFILE fi if [ "$#" -eq 2 ]; then RES="$1" CMD="$2" else RES="all" CMD="$1" fi ## EXIT CODES # since this is a "legacy heartbeat R1 resource agent" script, # exit codes actually do not matter that much as long as we conform to # http://wiki.linux-ha.org/HeartbeatResourceAgent # but it does not hurt to conform to lsb init-script exit codes, # where we can. # http://refspecs.linux-foundation.org/LSB_3.1.0/ #LSB-Core-generic/LSB-Core-generic/iniscrptact.html #### drbd_set_role_from_proc_drbd() { local out if ! test -e /proc/drbd; then ROLE="Unconfigured" return fi dev=$( $DRBDADM sh-dev $RES ) minor=${dev#/dev/drbd} if [[ $minor = *[!0-9]* ]] ; then # sh-minor is only supported since drbd 8.3.1 minor=$( $DRBDADM sh-minor $RES ) fi if [[ -z $minor ]] || [[ $minor = *[!0-9]* ]] ; then ROLE=Unknown return fi if out=$(sed -ne "/^ *$minor: cs:/ { s/:/ /g; p; q; }" /proc/drbd); then set -- $out ROLE=${5%/**} : ${ROLE:=Unconfigured} # if it does not show up else ROLE=Unknown fi } case "$CMD" in start) # try several times, in case heartbeat deadtime # was smaller than drbd ping time try=6 while true; do $DRBDADM primary $RES && break let "--try" || exit 1 # LSB generic error sleep 1 done ;; stop) # heartbeat (haresources mode) will retry failed stop # for a number of times in addition to this internal retry. try=3 while true; do $DRBDADM secondary $RES && break # We used to lie here, and pretend success for anything != 11, # to avoid the reboot on failed stop recovery for "simple # config errors" and such. But that is incorrect. # Don't lie to your cluster manager. # And don't do config errors... let --try || exit 1 # LSB generic error sleep 1 done ;; status) if [ "$RES" = "all" ]; then echo "A resource name is required for status inquiries." exit 10 fi ST=$( $DRBDADM role $RES ) ROLE=${ST%/**} case $ROLE in Primary|Secondary|Unconfigured) # expected ;; *) # unexpected. whatever... # If we are unsure about the state of a resource, we need to # report it as possibly running, so heartbeat can, after failed # stop, do a recovery by reboot. # drbdsetup may fail for obscure reasons, e.g. if /var/lock/ is # suddenly readonly. So we retry by parsing /proc/drbd. drbd_set_role_from_proc_drbd esac case $ROLE in Primary) echo "running (Primary)" exit 0 # LSB status "service is OK" ;; Secondary|Unconfigured) echo "stopped ($ROLE)" exit 3 # LSB status "service is not running" ;; *) # NOTE the "running" in below message. # this is a "heartbeat" resource script, # the exit code is _ignored_. echo "cannot determine status, may be running ($ROLE)" exit 4 # LSB status "service status is unknown" ;; esac ;; *) echo "Usage: drbddisk [resource] {start|stop|status}" exit 1 ;; esac exit 0
添加执行权限: chmod 755 /etc/ha.d/resource.d/drbddisk
node1做为heartbeat和drbd的主节点时,/etc/drbd1会自动挂载到/db,当主宕机后,node2接管heartbeat的虚拟IP并自动接管drbd提升为主节点且挂载/etc/drbd1到/db下。
原创文章,转载请注明。本文链接地址: https://www.rootop.org/pages/3297.html