To use the physical memory, it must be activated. For that action, the Power E1050 server supports several options.

Static memory activations

A classical memory activation allows the permanent usage of the activated memory. For the amount of activated memory, IBM generates a key that is integrated into the system for a new purchased system.

The minimum mount of memory that must be activated is 50% of the installed memory or at least 256 GB. Static memory can be activated in the system configuration by using the Feature Code #EMCP for the activation of 1 GB or #EMCQ for the activation of 100 GB.

Capacity on Demand

Two types of CoD capability are available for processor and memory on the Power E1050 server:

Ê CUoD

If you have not activated memory in your server, you may use CUoD to purchase extra permanent memory (and processor) capacity and dynamically activate it when you need it. This goal can be achieved through a MES upgrade order, which results in another key that can be integrated into the system by using the HMC or the ASMI without restarting the server or interrupting the business. After entering the code, the additional memory can be used and assigned to LPARs.

For activating memory in a configuration, use the Feature Code #EMCP to activate 1 GB or Feature Code #EMCQ to activate 100 GB of memory for any OS.

Note: A minimum of 256 GB or 50% of the installed memory must be activated by default.

Ê Elastic CoD (Temporary)

With Elastic CoD, you can temporarily activate processors or memory as full-day increments as needed.

The Elastic CoD capacity can be ordered by using IBM ESS or through your IBM Business Partner or IBM sales representative. If the resources are ordered through an

IBM Business Partner or IBM sales representative, the following Feature Codes apply for the IBM E1050 server:

– #ECM1: 1-unit Memory days for Midrange/High End systems

– #ECM2: 100-unit Memory days for Midrange/High End systems

– #ECM3: 10,000-unit Memory days for Midrange/High End systems

After ordering, the capacity is visible at the IBM ESS website. To use the capacity in IBM ESS, select the system where the capacity should be used and the number of days to generate a code that can be entered into the system by using the HMC. For more information, see have a look into IBM ESS or contact your IBM Business Partner or IBM sales representative.

Hint: On the IBM ESS website, you can activate a demonstration mode. In the demonstration mode, you can simulate how to order capacity and produce keys without any real execution.

Chapter 2. Architecture and technical overview                                                                      59

IBM Power Private Cloud with Shared Utility Capacity

Besides the two CoD offerings, the Power E1050 server also supports the Power Private Cloud with Shared Utility Capacity solution (PEP2), which is an infrastructure offering model that enables cloud agility and cost optimization with pay-for-use pricing. This use model requires the configuration of the PEP2 Enablement feature (#EP20) for the server, and a minimum of a 256 GB Base Memory Activation for Pools 2.0 feature is needed. The base memory activations are static and permanent. More memory resources that are needed beyond the capacity that is provided by the base memory activations are metered by the minute and paid through capacity credits.

Note: For processors, the metering measures used capacity cycles independent of the entitled capacity that is assigned to LPARs. For memory, this process is different. If memory is assigned to an LPAR, it is used from an Enterprise Pools perspective, even when the OS does not use it.

For more information about PEP2, see IBM Power Systems Private Cloud with Shared Utility Capacity: Featuring Power Enterprise Pools 2.0, SG24-8478.

Note: The CUoD technology usage model and the Shared Utility Capacity (PEP2) offering model are all mutually exclusive in respect to each other.