This page provides details of what's new in HCM for z/OS V1R7 and z/VM V5R2.
Support of multiple subchennael sets
Starting with IBM System z9 Enterprise Class™ (z9 EC) processors (type 2094), users can define an additional subchannel set with ID 1 (SS 1) on top of the existing subchannel set (SS 0) in a channel subsystem. With this additional subchannel set, you can configure more than 2*63K devices for a channel subsystem. With z/OS V1R7, you can define Parallel Access Volume (PAV) alias devices (device types 3380A, 3390A) of the 2105, 2107 and 1750 DASD control units to SS 1. Device numbers may be duplicated across channel subsystems and subchannel sets.
Configuration file checker
You can invoke a utility to check configuration files for structural consistency. On your request, the utility attempts to repair the detected inconsistencies. If required, the file checker writes messages and diagnose information. You can use this output if you need to contact IBM support for help.
You can create general objects (general boxes) for purposes that are not covered by other HCM objects, for example, to represent devices and their connections that are not part of the logical definitions of an I/O configuration. Thus the purpose of general objects can be to document the complete cabling of your devices in your configuration. Examples for general objects may be network devices or non-zSeries boxes. These objects and their connections appear in the configuration diagram, so that you can have a complete view of the physical objects in your configuration. General objects are stored in the HCM configuration file.
Viewing HCD configuration reports in HCM
You can view HCD configuration reports from HCM now. A new dialog lets you select HCD configuration reports, and you can also limit the reports to selected objects (for example, a processor or an OS configuration). The contents of the selected reports are shown in a window. You can save the output into a file on your workstation.
New function of the CHPID Mapping Tool Support utility
You can now directly launch the CHPID Mapping Tool from within the CHPID Mapping Tool Support, if this tool is correctly installed on your workstation.