2.144.1 Capacity Management Policy

Manual Transmittal

July 27, 2015

Purpose

(1) This transmits an update to IRM 2.144.1, Capacity Management, Capacity Management Policy.

Material Changes

(1) This transmittal updates the initial IRM publication of the Capacity Management Policy, by adding Enterprise Demand Forecasting to the policy statement. Only editorial changes are contained in this update, per IRM 1.11.9.6.2(1)b

Effect on Other Documents

IRM 2.144.1, dated March 31, 2014, is superseded.

Audience

This policy is applicable to all IT organizations with responsibilities for Capacity Management activities.

Effective Date

(07-27-2015)

Terence V. Milholland
Chief Technology Officer
Information Technology

Policy

  1. Capacity Management Policy.

Administration

  1. Solution Engineering (SE) is responsible for the development, implementation, and maintenance, of this policy. This policy is approved by the Chief Technology Officer. All updates are accomplished through the Director, Solution Engineering. All proposed changes to this policy must be submitted to the Chief, SE Process Maturity Practice Group.

Purpose of Policy

  1. This policy establishes the organizational policy for planning and performing the Capacity Management process to ensure that all current and future capacity and performance aspects of the Information Technology (IT) infrastructure are provided to meet business requirements at acceptable cost. The Capacity Management process ensures IT infrastructure is provided at the right time in the right volume at the right price, and ensures that IT is used in the most efficient manner.

Scope

  1. This policy is applicable to all IT organizations with responsibilities for Capacity Management activities.

Mandates

  1. This policy contains the following mandates:

Applicability
  1. All IT organizations responsible for Capacity Management activities shall follow the Capacity Management process to ensure all activities and work products are produced.

Completion of Capacity Management Process
  1. Responsible IT organizations shall ensure that the following key activities are performed in accordance with the defined Capacity Management Process:

    • Demand management for business, service, and component capacity activities

    • Modeling for business, service, and component capacity activities

    • Application sizing for business, service, and component capacity activities

    • Capacity planning for business, service, and component capacity activities

    • Capacity monitoring and analysis

    • Implementation of capacity-related changes

    • Control of storage capacity monitoring data for capacity activities

    • Provide to management information about Capacity Management performance and operations

Capacity Management Subprocesses
  1. Capacity Management is made up of 4 processes.

Business Capacity
  1. Business Capacity Management process - The Business capacity process shall be used to forecast capacity needs based on business events.

Service Capacity
  1. Service Capacity Management - The Service Capacity Management process shall be used to ensure capacity levels support established service level targets.

Component Capacity
  1. Component Capacity Management - The Component Capacity Management process shall be used to ensure capacity levels are provided for the individual IT device level.

Enterprise Demand Forecasting
  1. Enterprise Demand Forecasting - The Enterprise Demand Forecasting is the process to conduct periodic forecasting for the enterprise.

Engagement with Solution Engineering
  1. Solution Engineering may be contacted by sending an E-mail to SE Front Door using mailto:it.engineering.customer.support@irs.gov