HCD and Dynamic Reconfiguration

Audience

Attendees are expected to be systems programmers, hardware planners or senior operations staff responsible for planning, defining and controlling the I/O configuration of z/OS systems. Also included are the recent multiple logical channel subsystems of the z9 range of processors and FICON updates.

Prerequisites

Delegates should be familiar with the z/OS environment, TSO and basic I/O configurations. This can be obtained from our z/OS for Beginners course

Duration

2 days. Hands on.

Course Objectives

On completion of the course delegates will be able to:

• Describe the components of a z/OS configuration
• Processors LPARs, and Logical channel subsystems
• FICON and ESCON Channel paths and Directors
• Control units and Devices
• Use HCD to view, define and modify I/O definitions within the z/OS installation
• Plan and implement a strategy for HCD within a z/OS environment and use dynamic reconfiguration within the installation.

Course Content

Introduction to HCD
HCD Overview
Managing Multiple Systems
The I/O Definition file

Getting Started with HCD
Working with HCD panels
Panel Navigation
Creating a Production IODF
IPLing with an IODF
The IODF statement in LOADxx

Configuration Management - Operating Systems
Operating system tasks
EDT and NIP

Configuration Management - Processor and MIF
LCSS and MIF
CHPIDs and PCHIDs
Channel Path Types - FICON and ESCON channel paths
Dynamic Channel Path Management
PR/SM partitions
CHPID operating modes
Shared and Spanned channel paths
Access and Candidate lists

Configuration Management - CU and Devices
Control Unit and Device specifics
Adding new CU and devices
Defining device to OS connections
Processor features for devices
Operating system features for devices and the EDT

Configuration Management – FICON and ESCON Directors
ESCON Directors
- configuration options
- The Port Matrix Panel
- HCD and the ESCON Manager
- Migrating switch data
FICON Directors
- configuration options
- cascading directors
- DWDM and CWDM
- FICON and SAN

HCD in Batch
JCL Requirements
Parm Fields
Example of copying an IODF as a Batch Job
Batch Reports from HCD

Dynamic Reconfiguration
Full and software only reconfiguration
Static/dynamic devices
The ACTIVATE command
SYSPLEX Wide Activation