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This page provides details of what's new in HCD for z/OS V1R11.
HCD Profile Options dialog
HCD provides a new Profile Options dialog which displays the current values of all possible HCD profile keywords as they are either explicitly set in the HCD profile data set or as they are defaulted by HCD. This dialog allows you to verify or modify HCD profile options.
New profile options
There are new profile keywords for the following purposes:
- Showing partition information in IOCP decks: Use profile option SHOW_IOCP_DEFAULTS to explicitly show and document the partition defaults of CHPID and IODEVICE statements in generated IOCP decks. The option causes HCD to write this additional information as comments into the IOCP deck.
- Extend the change log data set to provide space for updates: Use profile option CHLOG_EXTENSION to specify the percentage of additional space that is to be allocated beyond the default size of the IODF when a change log data set is created.
Changes in HCD reports
The following HCD reports are enhanced:
- The Control Unit Summary Report now shows the number of logical paths per control unit.
- The Control Unit Detail Report now shows the number of logical paths for a control unit per channel subsystem and the number of logical paths per control unit port.
- The EDT Report now shows values for columns NAME, NAME TYPE, VIO and TOKEN also for an esoteric that has no device numbers assigned to it.
- For the Processor Compare Report, HCD now also compares the processor tokens of work/production or work/work IODFs. In previous releases, HCD compared only the tokens of production IODFs.
- In the CSS/OS Device Compare Report, devices with adjacent ranges are joined before printing. Additionally the device range is increased to show a maximum of 4 digits.
Indicating channel path mode changes
When working with channel paths in the HCD dialog, users might specify a partition assignment that does not match the specified channel path mode, or vice versa. For example, a user sets the operation mode of a channel path to SHR (shared), but partitions of multiple channel subsystems are assigned to it. In such a case, HCD does not accept the user’s channel path mode specification but implicitly adjusts it to the defined partition assignment. In the given example, HCD changes the channel path mode to SPAN (spanned).
Starting with this release, HCD issues a new informational message to inform the user that the channel path mode is adjusted to reflect the specified partition assignment.
Specifying multi-user access mode when creating a work IODF from a production IODF
You can now choose multi-user access mode for a new work IODF that you create from a production IODF.
Support of the WWPN Prediction Tool
From the currently accessed IODF, you can export the FCP channel/device specific part of the I/O configuration into a comma-separated value (CSV) output format. The generated file can be used as input to the WWPN Prediction Tool to assign world-wide port names to virtualized FCP ports for configuring SAN devices.
Handling multi-user access enabled IODFs
In z/OS V1R10 HCD, when creating an IODF, you can specify a multi-user access (MUA) option so that multiple users can simultaneously update this IODF. From HCM’s IODFs and IODF Details dialogs, you can find out whether an IODF’s MUA status is enabled or disabled. However, you cannot work with MUA-enabled IODFs in HCM.
Miscellaneous dialog enhancements
Enhanced prompting for available IODFs
The Available IODFs panel invoked by prompting for IODFs indicates whether an IODF can be accessed in multi-user access or in single-user access mode only.
Enhanced Channel Path List
The Channel Path List is enhanced to show the processor ID when the user scrolls to the right to see which partitions are in the access and candidate lists for a channel path (partition matrix).
Enhanced deleting of partitions with CHPIDs uniquely assigned
A partition, that has CHPIDs uniquely assigned to only this partition in either the access or candidate list, cannot be deleted until users first remove the CHPIDs from the partition. This is indicated by a message. However, this message identifies only one CHIPID at a time, that is exclusively assigned to this partition, and may reoccur several times, for each CHIPID uniquely assigned to the partition. Thus, deleting a partition could become a cumbersome and inefficient task.
Therefore, the Confirm Delete Partition dialog is enhanced to indicate all CHPIDs exclusively assigned to this single partition by flagging them with an ‘*’. Thus, users can remove the flagged CHPIDs in one step and then delete the partition more efficiently.
Functions available as SPE since z/OS V1R10
The following features have been available as SPEs since z/OS V1R10, but are now described in detail in this edition for the first time.
Hardware support
- HCD supports the IBM z10 BC processor (processor type 2098-E10).
- For the z/TPF operating system, 3215 consoles are supported on channel paths of type OSC. IOCP needs to distinguish between OSC-3270 and OSC-3215 attachments. This is done via the CHPARM keyword on the CHPID statement.
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