Many factors can affect capacity planning for your IBM® Lotus Notes® Traveler server deployment, such as Lotus® Domino® tasks, the number of users, and the capabilities of the server hardware.
Consider these capacity planning factors:
- IBM Lotus Domino tasks including Lotus Notes Traveler, IBM Lotus Sametime® and IBM Lotus Quickr® impose additional memory and processing loads on a Domino server.
- The number of users affects the amount of memory used by Lotus Notes Traveler.
- The physical capabilities of the server hardware, including processing speed, memory, and I/O bandwidth, affect server capacity.
- The operating system architecture effects the maximum number of users possible on a single Lotus Notes Traveler server. On 32-bit operating systems, there is an architectural limit of 3 GB of memory per process. Since Lotus Notes Traveler runs as a Domino task, any Domino shared memory allocated reduces the amount of memory available to Lotus Notes Traveler, thus memory is often the limiting factor on a 32-bit operating system. On 64-bit operating systems, the memory limits are much higher and in general the processing power or I/O bandwidth becomes the limiting factor.
Consider these best practices:
- When possible, run Lotus Notes Traveler on a Domino server separate from the mail server and servers running other Domino tasks.
- When possible, use a 64-bit rather than a 32-bit operating system to host the Lotus Notes Traveler server.
- If running at or near capacity for a given Lotus Notes Traveler server, add an additional Lotus Notes Traveler server and adjust the load across servers. Different Lotus Notes Traveler servers can be used to access mail files on the same set of Domino mail servers.
It is difficult to say exactly what the maximum capacity is for a given environment. Evaluate the capacity planning factors and follow the best practices to get the most out of your Lotus Notes Traveler deployment.
For hardware sizing requirements specific to your company's environment and usage, please contact your IBM Sales Representative or Business Partner and request Global TechLine
For performance tuning information, see Tuning performance of the server
IBM often publishes performance data on its http://www.ibm.com/developerworks/
">developerWorks site. Search for Traveler performance
on the site to see the latest published performance analysis for Lotus Notes Traveler.
Parent topic: Choosing a deployment configuration