IBM GC28-6720-4 MVT Guide Release 21 Mar72 free download

File name GC28-6720-4_MVT_Guide_Release_21_Mar72.pdf

File No. S360-36 Order No. GC28-6720-4 Systems Reference Library IBM System/3S0 Operating System MVT Guide OS Release 21 This publication describes the MVT (multiprogramming with a variable number of tasks) configuration of the operating system control program. It contains a description of the MVT control program, options available with MVT, information on optimizing performance, information on modifying the system, and a description of the internal logic of the MVT configuration. General descriptions are provided of the operating environment of the control program, of the initial program loading procedure, and of the job management, task management, data management, volwlle management and recover, management functions. The MVT configuration of the control program is designed for use with System/360 Models 40, 50, 65, 75, 85, 91, 95, and 195; with the System/360 Model 65 Multiprocessing System; I and with System/370 Models 145, 155, 165, and 195. The minimum main storage is 262,144 (256K) bytes, or 524,288 (512K) bytes in the case of the Model 65 Multiprocessing system. Information in this publication for TSO with the Model 65 Multiprocessing (M65MP) configuration is for planning purposes until that item is available. IFifth Edition (March, 1972) This is a major revision of, and obsoletes, GC28-6720-3. Section IV of this publication contains a major quantity of the information formerly in IBM System/360 Operating System: System Programmer's Guide, GC28-6550. The publication, IBM System/360 Operating System: Data Management for System Programmers, GC28-6550, contains the remaining System Programmer's Guide material. Changes to text and illustrations are indicated by a vertical line to the left of the change. A summary of major changes appears after the table of contents. Isubsequent releases untiltootherwise21indicated in new editions or Technical Newsletters. This edition applies Release of IBM System/360 Operating System, and to all Changes are continually made to the information herein; before using this publication in connection with the operation of IBM systems, refer to the latest IBM System/360 SRL Newsletter, GN20-0360, for the editions that are applicable and current. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. A form for readers' comments is provided at the back of this publication. If the form has been removed, comments may be addressed to IBM Corporation, Programming Systems P"ublications, Department D58, PO Box 390, Poughk,eepsie, N. Y. 12602