i am planning for high availability on lucid ubuntu, i started with drbd after a simple configuration on drbd I went to heartbeat and had a simple config on it too.
on drbd official site a document told me heartbeat is legacy and i should meet pacemaker instead as CRM.
on pacemaker related documents i understand heartbeat and OpenAis both are cluster infrastructures but openais is more preferred choosed by redhat too, so i went to openais and installed openais after searching with openais i understand that corosync is a project come from openais and it seem that corosync is used with ubuntu instead of openais.
and i want to configure corosync but no config is present where document declare!
1.could any body describe role of pacemaker in relation with openais,corosync ?
2.what's exactly preferred technology for high availability on ubuntu?
- could you please give a step by step guide to set high availability on ubuntu?
thanks in advance.