MSCP Basic Disk Functions Manual

Company:Digital Equipment Corporation
Part:AA-L619A-TK
Date:1982-04
Keywords:UDA50

Table of Contents

  • Chapter 1 Introduction
    • 1.1 Overview of MSCP Subsystem
    • 1.2 Purpose
    • 1.3 Method of Presentation
    • 1.4 Scope
  • Chapter 2 Terminology
  • Chapter 3 Class Driver / MSCP Server Communications
    • 3.1 Connection
    • 3.2 Flow Control
    • 3.3 Class Driver Responsibilities
    • 3.4 MSCP Server Responsibilities
  • Chapter 4 Algorithms and Usage Rules
    • 4.1 Controller Status
    • 4.2 Controls and Indicators
    • 4.3 Unit States
    • 4.4 Unit Numbers
    • 4.5 Command Categories and Execution Order
    • 4.6 Class Driver / MSCP Server Synchronization
    • 4.7 Class Driver Error Recovery
    • 4.8 (This section deliberately omitted)
    • 4.9 Host Access Timeouts
    • 4.10 Command Timeouts
    • 4.11 Disk Geometry and Format
    • 4.12 Bad Block Replacement
    • 4.13 Write Protection
    • 4.14 Compare Operations
    • 4.15 Multi-Unit Drives and Formatters
    • 4.16 Controller and Unit Identifiers
    • 4.17 Media Type Identifiers
  • Chapter 5 MSCP Control Message Formats
    • 5.1 Generic Control Message Format
    • 5.2 Reserved and Undefined Fields
    • 5.3 Transfer Command Message Format
    • 5.4 Command Modifiers
    • 5.5 End Message Format
    • 5.6 Status Codes
    • 5.7 Unit Flags
    • 5.8 Controller Flags
  • Chapter 6 Minimal Disk MSCP Subset
    • 6.1 (This section deliberately omitted)
    • 6.2 (This section deliberately omitted)
    • 6.3 ABORT Command
    • 6.4 ACCESS Command
    • 6.5 AVAILABLE Command
    • 6.6 (This section deliberately omitted)
    • 6.7 COMPARE HOST DATA Command
    • 6.8 DETERMINE ACCESS PATHS Command
    • 6.9 ERASE Command
    • 6.10 (This section deliberately omitted)
    • 6.11 GET COMMAND STATUS Command
    • 6.12 GET UNIT STATUS Command
    • 6.13 ONLINE Command
    • 6.14 READ Command
    • 6.15 REPLACE Command
    • 6.16 SET CONTROLLER CHARACTERISTICS Command
    • 6.17 SET UNIT CHARACTERISTICS Command
    • 6.18 WRITE Command
    • 6.19 Invalid Command End Message
    • 6.20 ACCESS PATH Attention Message
    • 6.21 AVAILABLE Attention Message
    • 6.22 DUPLICATE UNIT NUMBER Attention Message
  • Chapter 7 Disk MSCP Options
  • Chapter 8 MSCP Error Log Message Formats
    • 8.1 Introduction
    • 8.2 Generic Error Log Message Format
    • 8.3 Controller Errors
    • 8.4 Host Memory Access Errors with Bus Address
    • 8.5 Disk Transfer Errors
    • 8.6 SDI Errors
  • Appendix A Opcode, Flag, and Offset Definitions
  • Appendix B Status and Event Code Definitions
  • Appendix C Controller, Unit, and Media Type Identifier Values
  • Appendix D Buffer Descriptor Formats

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