SYSVIEW - USER, SITE and SYSTEM PARMLIB members - what gets the priority ?

Products

• SYSVIEW Performance Management

Issue/Introduction

How does the concatenation work if there are USER,SITE and SYSTEM members of the same member name ? 

Resolution

A SYSVIEW installation is comprised of several types of libraries or data sets. Each data set or library is designed to contain a specific type of data. This is referred to as a library type or libtype.
A library type can consist of multiple data sets. If multiple data sets have been defined, the data sets will be dynamically concatenated when a read request is made for the specified library type. Only one data set can be defined for each data set type. Therefore, a maximum of three data sets can be concatenated. If defined, the data sets will be concatenated in the following order:

        DD DISP=SHR,DSN=user.data.set
        DD DISP=SHR,DSN=site.data.set
        DD DISP=SHR,DSN=system.data.set