HA Cluster Manager
Cluster Manager
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
server failures.
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.
Online documentation
Latest pre-built RPMs:
RHEL9:
https://github.com/datareel/ha-cluster-manager/releases/download/1.40/drcm_server-1.40-1.el9.x86_64.x86_64.rpm
sha256sum: 0272d145dc18a0c1a42db7be7c1a3fe80389a7f5fbec341085df058ad6db4531
RHEL8/CENTOS8:
https://github.com/datareel/ha-cluster-manager/releases/download/1.39/drcm_server-1.39-1.el8.x86_64.x86_64.rpm
sha256sum: 1693ebed19a8dbdb768fcf6c265ee9f4f2b8fbca0abd811040ae69dffc3ea615
RHEL7/CENTOS7:
https://github.com/datareel/ha-cluster-manager/releases/download/1.37/drcm_server-1.37-1.el7.x86_64.x86_64.rpm
sha256sum: 8bc4f7230937806cd799577840d7f10fdef0d594b94061bc273360376ec5a4bf
RHEL6/CENTOS6:
https://github.com/datareel/ha-cluster-manager/releases/download/1.37/drcm_server-1.37-1.el6.x86_64.x86_64.rpm
sha256sum: b67a2ed72bf69279bd7cd71c64d85dffeb5d9a95164381ca98385d166885ef6a
Source
code repository
Transition from heartbeat to DRCM