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How to Create and Organize an IT Process Catalog

Aug 30, 2002

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Capacity Planning

This process aims to predict future resource requirements and provide a capacity plan for all environments. This process involves gathering and analyzing forecast data from customers, trend analysis of historical data, and workload modeling to predict outcome of growth and upgrades.


Tasks	Skills
Define processes for determining capacity requirements 1–2 years out Develop equipment plan and associated cost information Recommend workload balancing options to avoid upgrades Identify individual components (such as memory and cache) to improve performance and thus eliminate/avoid upgrades	Understanding of key platform, operating-system, and subsystem components Understanding system measurement data Basic knowledge of statistical analysis Understand performance characteristics for all resources Working knowledge of system/subsystem (such as I/O subsystems) tuning
Staffing	Automation Technology
Capacity planner Statistical analyst Operations research analyst	Capacity planning software (for example, BMC, IBM, Compuware, and others) Statistical trend analysis Simulation tools Analytical modeling tools Operating-system support utilities
Best Practices	Metrics
Common organization and management process for all capacity evaluations Occasional, temporary use of additional resources Proactive evaluation of all resources Ongoing tracking of actual versus planned usage by environment and by customer Tie-in to performance management processes Service-level attainment Bulk purchases (for example, on a quarterly basis) for cost-effectiveness Selective out-tasking of activities to third-party providers Use of simple business metrics where feasible Map of capacity requirements onto application infrastructure patterns	IT planned versus actual utilization Customer forecast versus actual Number and size of unplanned system acquisitions
Process Integration	Futures
Performance management	Capacity on demand Cross-platform/domain modeling Integration of service-level and performance processes

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