Types of server clusters supported
The three types of server clusters supported include, application server clusters, speech transcription server clusters, and database server clusters.
Application server cluster
An application server cluster provides high-availability and failover for WFO applications, including Enterprise Manager.
All servers in this cluster support the Framework Applications server role. (The Framework Application server role supports the WFO software applications.)
This clustering option is available in deployment levels 3–6.
With this cluster type, you deploy a load balancer in front of the clustered servers to distribute connections to the servers equally.
Speech transcription server cluster
A speech transcription server cluster resides at a remote site and transcribes interactions. The clustered servers share business rules, which define the set of interactions to transcribe, and the same queue of incoming transcription missions.
If you have multiple remote sites in your enterprise, you can set up a separate speech transcription server cluster at each site.
Database server cluster
A database server cluster resides on an existing SQL Server farm or SQL Server cluster with multiple nodes.
An SQL Server farm or cluster is a deployment of multiple SQL servers that you can expand (or scale) to handle heavy site traffic efficiently.
The SQL Server farm or cluster supports failover mechanisms that ensure high availability by transferring the workload of failing servers to healthy servers in the cluster.
The SQL Server farm runs on remote, dedicated servers (that is, on servers other than those running WFO enterprise software). Create the SQL Server farm using instructions provided with your SQL servers.
With this cluster type, a WFO Database platform server runs in the data center and manages the databases running in the SQL Server farm. (That is, the WFO Database platform server installs, configures, and monitors the databases running in the SQL Server farm.)
The application servers containing the WFO software applications access the remote SQL cluster directly.
You configure access to the remote SQL cluster by adding the correct URL for the remote SQL cluster during the configuration of the WFO database server roles in the Enterprise Manager.