Planning for Community services
The Sametime® Community server runs on an IBM® Domino® server. You must install the Domino server before you install the Sametime Community Server. The Domino Server that hosts the Community Server must be dedicated to supporting the real-time, interactive communication services of Sametime. If you use a Domino LDAP directory, install it on a separate server.
Community Server is based on Domino
The Community Server uses the directory, security, and replication features of the Domino server. Do not use the Community Server for other high-demand Domino services such as mail storage and routing, application and database storage, or centralized directory and administration services.
Linux™ can run multiple partitioned Domino servers on the same system. For these server platforms, you can create a new Domino server on the same system as your existing production server. This configuration is not supported in Microsoft™ Windows™. Adding Sametime to an existing product server is not supported.
To add a server into an existing Domino domain for use as a Sametime Community Server, register the server to create a Server document before installing Domino. For more information, see "Installing a Domino server" for your operating system.
Directory considerations
- Federated identity
- Directory Assistance
- Consolidated LDAP
Using multiple Community Servers
If you have a large number of Sametime users, you can install multiple Community Servers and cluster them (using Domino clustering), and add stand-alone Community Mux servers for load balancing and to reduce network usage. If you decide not to cluster your Community Servers, there are special considerations when installing more than one Community Server. For example, you must synchronize all of the Community Servers to operate as a single community.
The stand-alone Community Mux accepts connections from installed Connect clients and Notes®-embedded clients, and distributes them among the Community Servers in the deployment. IBM uses 12 Sametime Community Servers with 16 stand-alone Community Mux servers, which supports up to 410,000 installed clients, although not all clients run concurrently. You can additionally deploy load balancer in front of the stand-alone Community Mux servers to further support load-balancing. If needed, you can deploy multiple Community Servers in multiple locations, and then assign each users to a "home" server.
Audio and video considerations
- Only one Sametime Community Server cluster can be selected during the Sametime SIP Proxy/Registrar installation.
- Only one SIP Proxy/Registrar or cluster of SIP Proxy/Registrars can be associated with a Sametime System Console.
- Sametime Community Servers that belong to one Sametime System Console can comprise a single Sametime Community, however, those servers cannot be part of an audio/video call to users who belong to a different Sametime Community.
National language considerations
You do not need to select a language when installing a Community Server. The language displayed for Sametime interfaces is primarily determined by the individual user's language settings. However, it is recommended that you install the Domino language pack that corresponds to the language used by the majority of your Sametime users. If no language pack exists for your language on your preferred platform, see the IBM Technotes, available at www.ibm.com/software/support, for information on how to localize the Domino server.
Security considerations
For information about planning security for the Community Server, see the Sametime Community Server section of the topic Security planning.
For information about securing the Community Server, see the topic Securing the Sametime Community Server.
For information about enabling and disabling TLS on the Community Server, see the topic Managing server connections.