- Red Hat Enterprise Linux (RHEL) 6 or 7 with the High Availability Add-On
- Using Amazon EC2 to provide instances that may serve as High Availability cluster members
Recommended Prior Reading
Useful References and Guides
This guide offers Red Hat's policies, requirements, and limitations applicable to the use of Amazon Web Services (EC2) instances as members of a RHEL High Availability cluster. Users of RHEL High Availability software components should adhere to these policies by installing only on the approved platforms in order to be eligible to receive assistance from Red Hat Support with the appropriate support subscriptions.
Consider general conditions for support of RHEL High Availability in virtualization environments
Supported releases for Amazon AWS EC2 instances as High Availability members: Red Hat supports RHEL High Availability cluster members running on Amazon Web Services (AWS) EC2 instances with the following RHEL releases or later:
- RHEL 7 Update 5 or later - Supported with packages
Supported transport protocols: RHEL High Availability clusters with members that run on the Amazon EC2 platform can only use the
udpu transport protocol - which is the default in RHEL 7 clusters. AWS VPC networks do not support multicast traffic, preventing the usage of the
udp transport protocol.
Shared storage: RHEL High Availability clusters do not support shared storage with LVM (including tagging, clvmd, etc).
For more information, see:
- aws.amazon.com - Amazon VPC FAQs
- Explore features - Overview of transport protocols
- Design guidance - Selecting the transport protocol
- Support Policies for RHEL Resilient Storage Clusters - Resilient Storage on Amazon Web Services (AWS) EC2 Instances