The DataReel cluster manager (DRCM) software is used to build high
availability Linux server clusters. High availability clusters manage
system resources with automatic fail over in event of one or more
The DRCM project was designed to support multiple cluster nodes in a non-hierarchical arrangement. Cluster resources are distributed between the nodes with backup rolls assigned. The DRCM project requirements were based on the need to replace existing cluster software with multiple dependency issues and cluster software that did not scale well more than 2 cluster nodes.
A Linux server cluster is typically 2 servers with equal capacity, where one server provides primary services and the other server provides backup services. In the event of a primary server failure the secondary server automatically assumes all cluster resources. In data centers utilizing virtualization technology, services are distributed between many virtual machines (VMs). In a VM environment clustering multiple VM nodes running on multiple bare metal servers is a very effective way to manage services in the event of a bare metal server failure.
The DRCM multiple node concept can scale between nodes in one or more data centers in the same or different geographical locations.
Latest pre-built RPMs:
Source code repository
Transition from heartbeat to DRCM