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Tuesday, March 13, 2012

Metrics used in Capacity Management


A number of metrics can be used to gauge the effectiveness of this process.

Metrics to Identify Resource Utilization & Effectiveness of the Applied Resources:

The following metrics can be used to confirm the effectiveness of the process in providing the appropriate level of resources:
• The number of SLA breaches (or loss of user time) caused through inadequate capacity (e.g. performance below target due to lack of capacity).
• The number of Incidents resulting from a lack of capacity or poor performance.

Metrics to Identify the Effectiveness of the Capacity Plan:

The following metrics can be used in respect of properly fulfilling the planning role:
• The number of unplanned purchases required to provide adequate capacity or performance.
• The percentage accuracy of actual versus planned spend as given in the Capacity Plan.
• The percentage of over capacity (by resource type or CI).
• The number of new or changed services implemented without capacity or performance-related issues.
• The actual business demand as a percentage of forecast demand.

Metrics to Identify the Performance:

The following metric can be used in respect of monitoring performance:
• The percentage of CIs monitored for performance.

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