Does Pacemaker+CoroSync = Redhat Cluster Suite OR Pacemaker = Redhat Cluster Suite

[z_haseeb]

- If we are going to configure an HA with the help of Pacemaker. There is a need to configure heartbeats which can sync the resource state from one HA node to another HA node of of cluster, then CoroSync required to use ? or how the resource state will sync between both HA nodes. Please correct if I am wrong.
- I am searching a paid support/commercial version of Pacemaker+CoroSync. Does Pacemaker+CoroSync(community version) = Redhat Cluster Suite(commercial version) ? OR Pacemaker(community version) = Redhat Cluster Suite(commercial version), please correct if I am wrong.

[TrevorH]

Pacemaker requires corosync.

RHCS is the old cluster stack and was last used in CentOS 6. If you need support then buy RHEL with the HA licensing.

[z_haseeb]

Dear TrevorH : Let me make my query easy > If suppose I buy RHEL7 with cluster add-on then the technology which is being used behind RHEL7 HA is Pacemaker + CoroSync. Right ?

[TrevorH]

Yes