About this publication

This information is intended for system planners, installation managers, and other technical support personnel who need to plan for operating in logically partitioned mode (LPAR mode) on the, IBM z17^TM.

This publication assumes previous knowledge of the characteristics and functions of the installed central processor complex (CPC).

To improve readability, we refer to the different CPCs using the following terminology whenever possible:

Some features, windows, and functions are model-dependent, engineering change (EC) level-dependent, machine change level-dependent (MCL-dependent), or control program-dependent. For this reason, not all of the functions discussed in this publication are necessarily available on every CPC.

Some illustrations and examples in this publication describe operation with as few as 2 logical partitions (LPs), although up to 85 LPs for models ME1 and ML1, or up to 40 LPs for models ME2 and MER (machine type 9176), can be defined on a IBM z17 server.

Figures included in this document illustrate concepts and are not necessarily accurate in content, appearance, or specific behavior.

Sample tasks and panels explained in this publication reference tasks and windows available from the Support Element console. Hardware Management Console (HMC) and Support Element (SE) information can be found on the console help system. Also on https://www.ibm.com/docs/en/systems-hardware. Select your system.

Control program operators should refer to the appropriate control program publication for information on control program commands.

However, for the most current coupling facility control code information for all models, use this publication.