Designing processes - EMC Community Network

Performance and Scalability
System configuration guidelines
During the planning phase of a project it is important to define the scalability and performance
requirements of the solution. Some process-based applications are high volume and require special
considerations for deployment in a production environment. System configurations for production
deployment can be grouped roughly by size as follows:
• Small — Fewer than 300 TaskSpace users, fewer than 10,000 active workflow instances, one
central location
• Medium — Fewer than 2,000 TaskSpace users and fewer than 100,000 active workflow instances,
distributed architecture
• Large — More than 2,000 TaskSpace users, more than 100,000 active workflows, distributed
architecture with clustering and failover
To be accurate, identify sizing parameters such as the numbers of documents, number of activities per
process, process duration, and the amount of data processed. One approach is for the project team
to create a template that captures relevant sizing parameters and then validates the template with the
client. Specify in the template the types of actions required for different volume levels. Large volumes
of processes can raise issues of High Availability and Disaster Recovery, which require more complex
and robust hardware requirements. Listing the types of equipment to support various volume levels
helps clients make informed business decisions.
Small configurations
The recommended approach to host small configuration environments is to use WMware. Create a
separate virtual machine for every tier. Each tier should have roughly 2 to 4 Central Processing
Units (CPUs) with 4 GB to 8 GB of Random Access Memory (RAM). A WMware configuration
could include:
• TaskSpace application server
• Content server
• Database server
• BAM application server
• BAM server
• BAM database server
Medium configurations
The recommended approach for medium configuration environments is to use enterprise machines.
Software clustering can be used at the application server, database server, and content server levels.
WMware can be used for the TaskSpace application server and the BAM application server. Large
servers ranging from 4 CPUs to 16 CPUs and 8 GB to 32 GB of RAM are used for each of the
following tiers:
• TaskSpace application server
• Content server
• Database server
96 EMC Documentum xCelerated Composition Platform Version 1.6 Best Practices Guide