Capacity Management

Objective:
To determine the right, cost justifiable, capacity of IT resources such that the Service Levels agreed with the business are achieved at the right time.

Objectives:
• Demand Management
o Business Capacity Management
• Workload Management
o Service Capacity Management
• Resource Management
o Resource Capacity Management
While doing the above, also need to do:
• Performance Management
o Internal and External Financial Data
o Usage Data
o SLM Data / Response Times

CDB – Capacity Data Base – Contains all Metrics, etc. Used to create a Capacity Management Plan. Performance Management Data populates the CDB.

Essentials:
• From Customer Demands to Resources
• Demand Management
• Workload Management
• Performance Management
• Capacity Planning
• Defining Thresholds and Monitoring

Application Sizing:
To estimate the resource requirements to support a proposed application change to ensure that it meets its required service levels.

Modeling:
• Trend Analysis
• Analytical Modeling
• Simulation Modeling
• Baseline Models
• Used to Answer the “What If… “ questions
• Data for Modeling comes from the CDB