How is the PDSMENQ resource used?

Products

• PDSMAN

Issue/Introduction

How is the PDSMENQ resource used?

Environment

PDSMAN 7.7

Z/OS

Resolution

PDSMENQ is documented as an ENQUEUE/RESERVE with a requirement that it be converted into a global enqueue.

A RESERVE limits access, to an entire DASD volume, to a single z/OS, using hardware functionality.

Using a RESERVE is safe but affects performance.

With GRS, the RESERVE can be turned into a software facility which in turn, allows other z/OS images to access other parts of the volume.

PDSMENQ is an enqueue unique to PDSMAN. It is similar to ISPF's SPFEDIT enqueue, which is also normally converted to a global enqueue.

Additional Information

Information regarding PDSMENQ can be found in the PDSMAN Installation Guide - Chapter 4: Customizing the Runtime Environment 4–3