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	Overview \| Features \| Parallel Sysplex \| GDPS \| Capacity on Demand

Overview

Types

Capacity on Demand for System z9 and System z can allow you to activate processors and memory, paying for increased capacity only as your needs grow, through the following:

	Permanent capacity for non-disruptive growth Capacity Upgrade on Demand: Provides a means of planned growth for customers who know they will need increased capacity but aren't sure when.

	Temporary capacity for fluctuating workloads On/Off Capacity on Demand: Provides for planned and unplanned short-term growth driven by temporary processing requirements such as seasonal activity, period-end requirements or special promotions.

	Interim capacity for continued operation Capacity BackUp: Temporarily supplements backup servers with the extra processing capacity they need in case of an unforeseen production server outage.

Capacity Upgrade on Demand (CUoD)

This cornerstone of the IBM capacity on demand offering provides the capability to nondisruptively add one or more Central Processors (CPs), Internal Coupling Facilities (ICFs) and/or Integrated Facilities for Linux® (IFLs) for predictable, permanent growth. Enhancements introduced on the System z9 add the capability to activate System z Application Assist Processors (zAAPs) in addition to CPs, ICFs, and IFLs that are supported on System z servers.

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On/Off Capacity on Demand (On/Off CoD)

Do your customer demands go through an annual peak that lasts for two weeks at the end of December? Are you flooded with orders and faced with having to struggle through or lose massive amounts of business? Are you hesitant to add processor power because you can't justify the cost for the remainder of the year? This significant new offering from IBM can help solve your quandary. On/Off Capacity on Demand empowers you to turn processor capacity on or off as necessary to satisfy your many business peaks and valleys. Simply request that a number of processors be made temporarily available; then for hardware, get a hardware bill only for the days that the capacity is turned on.

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Capacity BackUp (CBU)

CBU for System z9 and System zprocessors can provide reserved emergency backup processing capacity for situations in which you lose capacity in another part of your establishment, helping you recover by adding reserved capacity on a designated System z9 or System z platform. As enterprises continue to look for disaster recovery solutions, the newly announced System z9 can provide reserved emergency backup capacity using the Capacity BackUp (CBU) feature. Enhancements on the System z9 enable activation of most PU types including Central Processors (CPs), Internal Coupling Facility (ICF), Integrated Facility for Linux (IFLs), and System z Application Assist Processors (zAAPs). CBU is supported for Central Processors (CPs), Internal Coupling Facility (ICFs), and Integrated Facilities for Linux (IFLs) on System z servers.

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