Chapter 1. Executive Summary
Application high availability is a top subject for most enterprise IT environments. Downtime incurs unplanned expenses and creates frustration for both consumers and providers.
This reference architecture focuses on implementing a highly available configuration for Red Hat CloudForms.[1] by configuring the CloudForms database for a replicated setup with one master and one hot standby server.
A hot standby configuration provides the following:
- Software components are installed and available on both primary and secondary nodes. The software components on the secondary system are up but will not process data or requests
- Data is mirrored in near real time and both systems will have identical data. Data replication is typically done through the software’s capabilities and generally provides a recovery time of a few seconds
For the reference environment the following technologies are used:
- NFS storage is provided by NetApp filers using SnapMirror technologies
- Virtual IP(VIP) along with DNS round-robin and load balancing provided by F5 Networks
- Clustering technologies provided by Red Hat
The targeted use case includes:
- Configuring a highly available Red Hat CloudForms implementation within a single datacenter, using Red Hat cluster services to provide a highly available database for each region
Disclaimer: Third party products are not supported by Red Hat and are supported by the respective vendors. Custom scripts and other information shared are for informational/educational purposes. Refer to the Red Hat Production Support Scope of Coverage.[2] for additional information.
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