description Pacemaker (ClusterLabs) Overview
Pacemaker from ClusterLabs provides a Linux-based cluster management solution designed to ensure high availability and disaster recovery. It automates workload failover using open source technology. This system is particularly useful for IT professionals managing virtualized environments needing robust data protection and operational continuity. Its integration with Zerto replication offers advanced disaster recovery capabilities.
help Pacemaker (ClusterLabs) FAQ
What underlying technology does Pacemaker use for cluster communication?
Pacemaker relies heavily on the Corosync Cluster Engine for its core messaging and quorum management. This open-source combination ensures that critical virtualized workloads remain operational during an outage.
What operating systems support ClusterLabs Pacemaker?
Pacemaker is highly compatible with Linux environments and is natively supported on enterprise distributions like Red Hat Enterprise Linux and SUSE Linux Enterprise Server. It can be configured to utilize Zerto replication for enhanced disaster recovery.
Does Pacemaker require a license fee to use?
No, Pacemaker itself is a free, open-source software component maintained by the ClusterLabs community. Organizations only pay if they purchase commercial support from enterprise vendors like Red Hat.
How does Pacemaker handle a failed node in a cluster?
When a physical host fails, Pacemaker detects the outage and automatically relocates the affected virtual machines to a healthy node. It integrates with Zerto replication to ensure that data is continuously mirrored and ready for failover.
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