The Corosync Cluster Engine is an open source project derived from the OpenAIS project and licensed under the new BSD License. The mission of the Corosync effort is to develop, release, and support a community-defined, open source cluster executive for use by multiple open source and commercial cluster projects or products.
DRBD® software (Distributed Replicated Block Device) is a distributed replicated storage system for the Linux platform. It is implemented as several userspacemanagement applications and some shell scripts and is normally used on high availability (HA) computer clusters.
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