CAM

Establish and maintain a strategy for capacity and availability management.

Example Work Products

1. Capacity and availability management strategy

Subpractices

1. Document resource and service use, performance, and availability.

2. Estimate future resource and service capacity and availability requirements.

3. Develop a capacity strategy that meets service requirements, meets the demand for resources and services, and addresses how resources are provided, used, and allocated.

4. Develop an availability strategy that meets service req

5. Document monetized costs and benefits of the strategy and any assumptions.

6. Periodically revise the strategy.

Select measures and analytic techniques to be used in managing the capacity and availability of the service system.

Example Work Products

1. Operational definitions of capacity and availability measures

2. Traceability of capacity and availability measures to service requirements

3. Tools to support collection and analysis of capacity and availability data

4. Target measures or ranges to be met for selected measured attributes

Subpractices

1. Identify measures from organizational process assets that support capacity and availability management objectives.

2. Identify and specify additional measures that may be needed to support achieving capacity and availability management objectives for the service.

3. Analyze the relationship between identified measures and service requirements, and derive objectives that state specific target measures or ranges to be met for each measured attribute.

Establish and maintain service system representations to support capacity and availability management.

Example Work Products

1. Representations of resource and service use

2. Representations of service levels

3. Data on the use of resources and services

4. Data on current service levels delivered

5. Thresholds that define exception conditions and breaches

Subpractices

1. Collect measurements on the use of resources and services and the current service levels delivered.

2. Establish and maintain descriptions of the normal use of service resources and service system performance.

3. Establish and maintain service system representations from collected measurements and analyses.

4. Review and get agreement with relevant stakeholders about the descriptions of the normal use of service resources, service system performance, and service system representations.

5. Make available the descriptions of the normal use of service resources, service system performance, and service system representations.

6. Establish and maintain thresholds associated with demand, workload, use of service resources, and service system performance to define exception conditions in the service system and breaches or near breaches of service requirements.

Monitor and analyze capacity against thresholds.

Example Work Products

1. Service resource use data

2. Growth analysis of service use

3. List of resources not used as estimated

Subpractices

1. Monitor the use of service resources against thresholds, descriptions of normal use, and service system performance.

2. Monitor service response times.

3. Identify breaches of thresholds and exception conditions.

4. Determine the corrective action to be taken.

5. Estimate future changes (either growth or reduction) in the use of resources and services.

6. Store capacity and availability data, specifications, analysis results, and monitoring data.

Monitor and analyze availability against targets.

Example Work Products

1. Alarm data

2. Availability data

3. Reliability data

4. Maintainability data

Subpractices

1. Monitor availability, reliability, and maintainability against their requirements.

2. Analyze trends in availability, reliability, and maintainability.

3. Identify breaches of availability, reliability, and maintainability requirements.

4. Determine the corrective actions to be taken.

Report capacity and availability management data to relevant stakeholders.

Example Work Products

1. Service system performance reports

2. Service resource use reports

3. Service resource use projections

4. Service availability reports

Subpractices

1. Report the performance and use of resources and services.

2. Report exception conditions in the service system and breaches of service requirements.

3. Report data from monitoring against growth estimates in resource and service use.

4. Report the availability, reliability, and maintainability of resources and services.