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IBM Power System E850C: Technical Overview and Introduction
2.6 Capacity on Demand
Several types of Capacity on Demand (CoD) offerings are optionally available on the
Power E850C server to help meet changing resource requirements in an on-demand
environment. CoD uses resources that are installed on the system but that are not activated.
2.6.1 Capacity Upgrade on Demand
A Power E850C server includes a number of active processor cores and memory units. It can
also include inactive processor cores and memory units. Active processor cores or memory
units are processor cores or memory units that are already available for use on your server
when it comes from the manufacturer. Inactive processor cores or memory units are
processor cores or memory units that are installed in your server, but not available for use
until you activate them. Inactive processor cores and memory units can be permanently
activated by purchasing an activation feature called
Capacity Upgrade on Demand
and
entering the provided activation code on your server.
With the CUoD offering, you can purchase additional processor or memory capacity in
advance at a low cost, and dynamically activate them when needed. Activation does not
require that you restart your server or interrupt your business. All the processor or memory
activations are restricted to the single server they are licensed to, and cannot be transferred
to another system.
Capacity Upgrade on Demand can have several applications to allow for a more flexible
environment. CUoD allows a company to reduce their initial investment in a system.
Traditional projects that use other technologies require that the system is acquired with all the
resources available to support the whole lifecycle of the project. This setup can incur costs
that are only necessary in later stages of the project, which affects software licensing costs
and software maintenance.
By using Capacity Upgrade on Demand, the company could start with a system with enough
installed resources to support the whole project lifecycle but only with enough active
resources necessary for the initial project phases. More resources could be activated as the
project continues, adjusting the hardware platform to meet the changing project needs. This
process allows the company to reduce the initial investment in hardware and only acquire
software licenses that are needed on each project phase, reducing the Total Cost of
Ownership and Total Cost of Acquisition of the solution.
Hardware Management Consoles: The Power E850C does not require an HMC for
management. However, most CoD capabilities require an HMC to manage them. Capacity
Upgrade on Demand (CUoD) does not require an HMC because permanent activations
can be enabled through the Advanced System Management Interface (ASMI) menus.
Summary of Contents for E850C
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