Polycom 7000 manual About Superclustering

Superclustering

This section describes the Polycom® RealPresence® Distributed Media Application™ (DMA®) 7000 system’s superclustering capability. It includes the following topics:

●About Superclustering

●DMAs

●Join Supercluster Dialog

●Supercluster Procedures

About Superclustering

The two-server configuration of the Polycom RealPresence DMA system is configured as a co-located two-server cluster, which enhances the reliability of the system by providing a measure of redundancy. To provide even greater reliability, geographic redundancy, and better network traffic management, multiple Polycom RealPresence DMA systems (either single-server or two-server systems) in distributed locations can be combined into a supercluster.

A supercluster is a set of up to five Polycom RealPresence DMA system clusters that are geographically dispersed, but still centrally managed. The clusters in a supercluster are all peers. There is no “master” or “primary” cluster. All have local copies of the same data store, which are kept consistent via replication.

This common data store enables all the Call Servers to share the same site topology, dial plan, bandwidth management, endpoint registrations, usage reporting, and status monitoring. Sharing and replicating this data also allows single-point management (configuration/re-configuration) of the shared data from any cluster of the supercluster. Up to three clusters can function as Conference Managers, hosting conference rooms and managing pools of MCUs.

Responsibility for most functionality, including Active Directory and Exchange integration, device registration, call handling, and conference room (VMR) hosting, is apportioned among the clusters using site topology territories. You can assign a set of responsibilities to each territory, and you can assign a primary cluster and a backup cluster for each territory. When the primary cluster is online, it controls the territory and carries out all of the responsibilities belonging to the territory. When the primary cluster is offline, the backup cluster assumes control of the territory and carries out all of the territory’s responsibilities.

A standalone (not superclustered) Polycom RealPresence DMA system has a single default territory for which it’s the primary cluster (and of course there is no backup). When you join other clusters to it to create a supercluster, it still has that same single default territory, it’s still the primary cluster for the default territory, and there is still no backup cluster. Essentially, one cluster is responsible for everything, and the others do nothing. So immediately after forming a new supercluster, you should do the following:

1If you haven’t already done so, create your site topology data or integrate with a Polycom RealPresence Resource Manager system to obtain it. See Site Topology.

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