Catalog Basics | Catalog Components
By Blair Svihra Today’s modern day catalog structure consists of three components: the Basic Catalog Structure (BCS), the VSAM Volume Data Set (VVDS), and the Volume Table of Contents (VTOC). It could be argued that the catalog environment could be expanded to include a discussion including any oneThis content is restricted to site members. If you are an existing user, please log in. New users may register below.