Service Manuals, User Guides, Schematic Diagrams or docs for : IBM 370 VM_370 plm SY20-0885-0_VM370_System_Logic_and_Problem_Determination_Guide_1976

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                SY20-0885-0
      IBM Virtual Machine Facility/370:
System Logic and Problem Determination Guide
                    1976




             Page Missing From
             Original Document
Page Missing From
Original Document
                                                                                        PREFACE




This publication provides the IBM system             "Section 4. Diagnostic Aids" contains
hardware and software support personnel         .debugging commands for problem solving,
with the information needed to analy~e          ~ait state    and ABEND codes, error codes,
problems that may occur on the IBM Virtual       ret,urn codes, and information about the
Machine Facility/370 (VM/370).                   DASD'Dump Restore Program.

   CMS/DOS is part of the eMS system and~is        "Section    5.   Appendixes"   contains
not a separate system. The term eMS/DOS'is      reference information that may be useful
used in this publication as a concise way       when Qebugging VM/370, such as: the VM/370
of stating that the DOS simulation mode of      pr09~amming  restrictions,   the CMS   ZAP
CMS is currently active; that is, the eMS       Service Program, and the VM/370 coding
command                                         conventions and equate symbols.
         SET DOS ON

has been previously issued.                     

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