Creating virtual source libraries

Virtual source libraries point to the information that IBM Data Virtualization Manager for z/OS needs in order to access some types of mainframe data.

Before you begin

A virtual source library is a server metadata object that references a source library that exists on the Data Virtualization Manager (host) server. The members of the source library contain layout information specific to a type of data, for example a COBOL or PL/I copybook (copybook), Adabas Data Definition Module (DDM) views, IMS Database Definition (DBD) files, or IMS Program Specification Block (PSB) files. Virtual source libraries provide a reusable catalog of the host's data source libraries.

Note: When creating a virtual source library, the current user must have read access to the host data source library.

About this task

Virtual source libraries are a prerequisite to creating virtual tables for the following types of data sources:
  • Adabas
  • IMS
  • IBM MQ
  • Sequential
  • VSAM, VSAM CICS and IAM
  • zFS and HFS
When creating the virtual source libraries you specify the following data set (PDS/PDSE) names based on the type of data that you want to access:
  • To access Adabas data, you specify the name of the PDS/PDSE that contains the Data Definition Module (DDM ) views that have been set up for the Adabas data in your environment.
  • To access IMS data, you may need to create multiple virtual source libraries that reference multiple types of source libraries. You may create a separate virtual source library that references the IMS DBD files, the IMS PSB files, and the copybooks that describe the layout of each IMS segment. In each case, you specify the PDS/PDSE that is specific to the source library.
  • To access IBM MQ data, you specify the name of the PDS/PDSE that contains the copybook that describes the data written to the queue.
  • To access sequential data, you specify the name of the PDS/PDSE that contains the copybook that describes the structure of the sequential data records.
  • To access VSAM, VSAM CICS, and IAM data, you specify the name of the PDS/PDSE that contains the copybook that describes the structure of the VSAM, VSAM CICS, and IAM data records.
  • To access z/FS and HFS data, you specify the name of the PDS/PDSE that contains the copybook that describes the structure of the records in the data file.

Procedure

  1. On the Server tab, expand Admin > Source Libraries.
  2. Right-click Create Virtual Source Library and select Create Virtual Source Library.
  3. On the Virtual Source Library page, complete the following fields:
    Field Action
    Name Enter a unique, meaningful name for the virtual source library you are creating.
    Description Enter an optional description for the virtual source library.
    Library Name Enter the name of the PDS/PDSE that contains the layout information for the data you want to access.
  4. Click Finish.

Results

The new virtual source library is displayed in the Source Libraries folder.