CMS HA

CMS HA provides redundancy to reduce the potential loss of call center data. You can configure HA if you have two CMS servers. The CMS servers connect to an ACD system. With HA, one CMS server is designated as a primary server and the other is designated as a secondary server. When the primary server goes down, the secondary server takes over.

• You can optionally configure a dual-IP CMS server, where two IP addresses are administered. One connects to the main ACD system and the other connects to an Enterprise Survivability Server (ESS).

• For detailed information about CMS HA, see Avaya Call Management System High Availability Connectivity, Upgrade and Administration.

VMware vSphere HA

VMware vSphere HA provides automatic detection of hardware failures, server failures, and operating system failures. If a physical server fails, affected virtual machines restart automatically on another production server that has spare capacity. If an operating system fails, vSphere HA restarts the affected virtual machine on the same server. The restart takes several minutes, but the system does recover.

VMware HA ensures that capacity is always available to restart all virtual machines affected by a server failure. HA continuously and intelligently monitors capacity use and reserves spare capacity to restart virtual machines. VMware HA helps VMware vSphere users identify abnormal configuration settings detected within HA clusters. The VMware vSphere client interface reports relevant operating status and potential error conditions with suggested steps for correction.