Input/Output Configuration Program (Iocp) Support; Hardware Support; Operator Training; Z/Vm Dynamic I/O Configuration - IBM Z9 Planning Manual

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Input/Output Configuration Program (IOCP) Support

Hardware Support

Operator Training

1-14
PR/SM Planning Guide
When you use HCD you must install, in the LP, the appropriate version of IOCP.
Throughout the remainder of this publication, all the capabilities or restrictions
documented regarding the IOCP program, also apply to definitions entered and
controlled through HCD.
For more information about dynamic I/O configuration on z/OS see:
v z/OS Hardware Configuration Definition Planning, GA22-7525
v z/OS Hardware Configuration Definition: User's Guide, SC33-7988

z/VM Dynamic I/O Configuration

You can dynamically change the current I/O configuration of the CPC. You can also
change the current I/O configuration of the operating system and create a new
IOCDS and make it the active IOCDS.
Dynamic I/O configuration does not support the following:
v Adding/deleting MIF image IDs from the initial ones in the IOCDS. (However, you
can change which LPs go to which MIF image IDs).
You can define and control the configuration of the CPC affecting all LPs. Those
LPs that run z/VM can dynamically change their software configuration definitions.
To perform a power-on reset you must use an LPAR IOCDS. To generate an LPAR
IOCDS you need to use the ICP IOCP program.
PTFs for supported IOCP versions must be applied and can be obtained from the
IBM Software Support Center. For more information on ICP IOCP, see Input/Output
Configuration Program User's Guide, SB10-7037.
LPs operate independently but can share access to I/O devices and CPC
resources. Each active LP must have sufficient channel paths and storage to meet
the particular requirements of that LP. Additional central storage, expanded storage,
channel paths, consoles, and other I/O devices might be necessary for the planned
configuration of LPs.
A general knowledge of z/Architecture and ESA/390 is useful and, in some cases,
required of all technical support personnel, LPAR planners, and operators.
Generally, the operator performs the following tasks:
v Edit activation profiles
– Reset profiles
- Select an IOCDS
- Optionally specify LP activation sequence
– Image profiles
- Define LP characteristics
- Optional automatic load specification
– Load profiles
v Performing a CPC activation
v Activating an LP
v Performing a load on an LP or activating a load profile
v Deactivating a CPC