March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
Content preview from Introduction to the New Mainframe: z/VSE Basics
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142 Introduction to the New Mainframe: z/VSE Basics
Access methods are identified primarily by the file organization. z/VSE users, for
example, use the basic access method (BAM).
This text does not describe all of the access methods available on z/VSE.
Commonly used access methods include the following:
BAM Basic Access Method (heavily used), which includes:
(B)DAM (Basic) Direct Access Method (used for ICCF)
(B)SAM (Basic) Sequential Access Method (for special cases)
VSAM Virtual Sequential Access Method (used for more
complex applications)
5.4 How are DASD volumes used?
DASD volumes are used for storing data and executable programs (including the
operating system itself) and for temporary working storage. One DASD volume
can be used for many diff ...
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