Najprv nainštalujeme potrebné balíčky:

apt-get install corosync pacemaker

A teraz sa vrhneme do konfigurácie. Najprv povolime spuštanie corosync:

vi /etc/default/corosync
# start corosync at boot [yes|no]
START=yes

Teraz nastavíme sieťové nastavenia na komunikáciu medzi nódmi. Oproti defaultnej konfigurácii len zmeníme bind adresu.

vi /etc/corosync/corosync.conf

totem {
        version: 2
        token: 3000
        token_retransmits_before_loss_const: 10
        join: 60
        consensus: 3600
        vsftype: none
        max_messages: 20
        clear_node_high_bit: yes
        secauth: off
        threads: 0
        rrp_mode: none

        interface {
                ringnumber: 0
                bindnetaddr: 172.16.2.12
                mcastaddr: 226.94.1.1
                mcastport: 5405
        }
}

amf {
        mode: disabled
}

service {
        ver:       0
        name:      pacemaker
}

aisexec {
        user:   root
        group:  root
}

logging {
        fileline: off
        to_stderr: yes
        to_logfile: no
        to_syslog: yes
        syslog_facility: daemon
        debug: off
        timestamp: on
        logger_subsys {
                subsys: AMF
                debug: off
                tags: enter|leave|trace1|trace2|trace3|trace4|trace6
        }
}

Teraz môžeme zapnúť corosync a otestovať či sa cluster objavil.

root@nfs1:~# /etc/init.d/corosync start

root@nfs2:~# /etc/init.d/corosync start

root@nfs1:~# crm_mon -1
============
Last updated: Wed May 15 13:55:23 2013
Stack: openais
Current DC: nfs1.cloud.mavipet.sk - partition with quorum
Version: 1.0.9-74392a28b7f31d7ddc86689598bd23114f58978b
2 Nodes configured, 2 expected votes
0 Resources configured.
============

Online: [ nfs1.cloud.mavipet.sk nfs2.cloud.mavipet.sk ]

Zatiaľ hotovo.