Configuring the Active-Passive High Availability System - All Scenarios

This chapter describes networking and other APHA system requirements. This information applies to all installation scenarios and will help you prepare for setting up the cluster systems and installing or upgrading the APHA module. For information about requirements for installing or upgrading ESM, see the ESM Installation Guide or the ESM Upgrade Guide.

Important: If you already have ESM and a license for a High Availability solution that was implemented before the APHA Module 1.0 release, you will need a new APHA license that supports this product. The new Active-Passive High Availability module uses software to manage failovers and requires a different hardware configuration.

When planning your installation or upgrade, keep the following points in mind:

The APHA module is not supported with SELinux in enforcing mode. If SELinux is installed, it should be in disabled or permissive mode. Micro Focus recommends disabled mode.
If you are planning to install ESM in distributed correlation mode, note that only the persistor node in the distributed correlation cluster supports the APHA module. Non-persistor nodes do not support the APHA module.

For an example APHA implementation, see An Example APHA Implementation