VSAM Demystified

Readers' comments

Readers' comments (4) 

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Posted by Christopher Calvin on 2 January 2012 at 18:01

The front papers neglect previous editions. This is exciting news about a reliable product. Please try to keep up.

Posted by Mary Lovelace on 6 January 2012 at 13:35

Hi Christopher, We wrote this book at the z/OS V1.12 level. We did not single out the enhancements to VSAM in each z/OS release since those are specifically addressed in the DFSMS Release Guides.

Posted by Yvan Gamache on 17 January 2012 at 12:06

In a few places in the book, sample code is shown as:

TM SMF64SMB,X’80’ SMB USED?

to find out if SMB is being used or not. I believe both bits 0 and 1 should be tested to find out if SMB is in use or not, not only bit 0.

So, this should probably be used instead:

TM SMF64SMB,X’C0’ SMB USED

Posted by Mr. LEONARD DYMOKE BRADSHAW on 8 July 2013 at 7:58

I downloaded this book and started at Chapter 1.
Section 1.1 told me that VSAM stood for
Virtual Sequential Access Method. Huh?

I started working on S/370 in 1975 and one of the things I learned that year was that Virtual Storage was the new thing and that VSAM worked with Virtual Storage and VSAM was the Virtual Storage Access Method.

This is borne out by the glossary in the latest DFSMS Introduction manual. Look up VSAM and see!


Profile

Publish Date
05 March 2013

Last Update
09 July 2013


Rating:
(based on 6 reviews)


Author(s)

ISBN-10
0738437433

IBM Form Number
SG24-6105-02