IBM 4381 Manual de usuario

Systems

GC20-2021-2

File No. 4300

A Guide to the IBM 4381

Processor

This guide presents hardware, 1/0 device, programming

systems, and other pertinent information describing the

significant new features and advantages

the

IBM

4381

Processor. Knowledge

System/370 or 4300 hardware

and 1/0 devices

assumed. The content

the guide

intended

acquaint the reader with the 4381 Processor

and

benefit in planning for its installation.

--...- -

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-.-

___

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_..._,_

Third Edition (April

1986)

This edition

a major revision obsoleting

GC20-2021-l.

discusses 4381 Processor

Model Groups 11, 12, 13, and 14. New and changed information

indicated by a vertical

rule in the left margin.

This guide

intended for planning purposes only.

will

be updated from time to time;

however, the readers should remember that the authoritative sources of system

information are the system library publications for the 4381 Processor, its associated

components and its programming support. These publications will first reflect any

changes.

References in this publication to IBM products, programs, or services do not imply that

IBM intends to make these available in all countries in which IBM operates.

Publications are

not

stocked

the address given below. Requests for copies of IBM

publications should be made to your IBM representative or to the IBM branch office

servicing your locality.

A form for readers' comments has been provided at the back of this publication.

the

form has been removed, address comments to: IBM Corporation, Department 824, 1133

Westchester Avenue, White Plains, New York 10604. IBM may use or distribute

whatever information you supply in any way it believes appropriate without incurring any

obligation to you.

Preface

This publication

designed for readers who are knowledgeable about System/370

architecture (as implemented in a System/370 or 4300 processor), and

4300/System/370

channels,

1/0

devices, and programming systems. Features of

4381 Processor model groups that are like the same features in 4341 Processors are

identified, and only those hardware and programming systems features of 4381

Processors that are different from those of 4341 Processors are described in detail.

Compatibility among the architectures implemented in 4381, other 4300, and

System/370 processors and their programming systems support

also discussed.

Information about the currently available 4381 model groups (11, 12, 13, and 14)

and the withdrawn model groups (

2, and 3)

given in this guide.

Preface

iii

iv A Guide to the IBM 4381 Processor

Contents

Section

: Highlights 1

Section 10: Technology and Architecture 14

10:05 Technology 14

Introduction 14

Logic Chip, Module, and Board Design

Logic Cooling 19

Storage Technology

10:10 Architecture

System/370 Architecture

System/370 Extended Architecture 23

Section 20: 4381 Processor Uniprocessor Model Groups 27

20:05 Instruction Processing Function

General Description 28

Instruction Set 30

Multiply and Add Facility 32

Elementary Math Library Facility 32

Square Root Facility and Mathematical Function Facility 32

ECPS:MVS 33

ECPS:VM/370

Preferred Machine Assist 34

20: 10 Storage 34

Processor Storage 35

Auxiliary Storage 37

Storage Control Function 39

20:

Support Processor Subsystem 42

Components and Functions 42

System Diskette Drives 44

System Initialization 45

Natively Attached Devices 46

Support Bus Adapter 46

20:20 Channels 47

General Description 47

Device Addresses and Unit Control Words

For

System/370 Mode 48

Subchannels

For

System/370-XA Mode 50

General Operation of the Channels 52

Byte Multiplexer Channels 54

Block Multiplexer Channels 55

SIOF Instruction

For

System/370 Mode 57

20:25 Standard and Optional Features 58

Standard Features 58

Optional Features 60

Contents V

Section 30: 4381 Processor Multiprocessor Model Groups

30:05 Configuration Description

30:10 Instruction Processing Function

General Description

Instruction Set

Other Features 66

30:15 Storage 66

Processor Storage 66

Auxiliary Storage

Storage Control Function 70

30:20 Support Processor Subsystem 74

Components and Functions 74

30:25 Channels 74

General Description 74

Device Addresses and Unit Control Words For System/370 Mode 76

Subchannels For System/370-XA Mode

General Operation of the Channels

Byte Multiplexer Channels 79

Block Multiplexer Channels 79

SIOF Instruction For System/370 Mode 80

30:30 Standard and Optional Features

Standard Features

Optional Features

Section 40: Operator Console 84

40:05 General Description 84

Operator/Operating System Communication Modes

Operator Control Panel

Keyboard

System Configuration Displays 89

40:10 Operator Displays 90

General Selection Display 90

40:15 Remote Operator Console Facility (ROCF)

40:20 Maintenance

Section

~O:

Virtual Storage and Address Translation 94

Virtual Storage Organization 94

Address Translation

Section 60: Reliability, Availability, and Serviceability (RAS)

60:05 Introduction

60:10 Recovery Features

Automatic Instruction Retry

ECC Validity Checking On Processor Storage 99

1/0Operation Retry

101

Machine Check Facilities

101

Machine Check Analysis and Logging 108

Functional Diskette 1 Logouts 109

Power System 110

60:

Diagnostic and Remote Support Facilities

113

Problem Analysis

113

Support Processor Subsystem Diagnostics 115

Power Controller Adapter Diagnostics 116

A Guide

the IBM 4381 Processor

Instruction Processing Function Diagnostics 116

Error Logout Analysis Program

System Test 117

Remote Support Facility 117

Section 70: Programming Systems Support 119

70:05

DOS/VSE

119

70: 10

OS/VSl

120

70:15

MVS/370

120

70:20

VM/370

120

70:25

MVS/XA

121

70:30 VM/Extended Architecture Migration Aid 122

70:35 Virtual Machine/System Product-Entry 123

70:40 Virtual Machine/Extended Architecture Systems Facility 124

70:45 Programming Systems Support Table 125

Section 80: Comparison Table of Hardware -4341 Model Group 12 and 4381

Processors 127

80:05 Hardware Features of the 4341 Model Group 12 Processor and 4381 Model

Group 11, 12, 13, and 14 Processors 128

Index 134

Contents vii

Figures

The 4381 Processor and console

Two 64-mm MCMs

A 64-mm MCM being hand held

The 4381 MCM board without any modules mounted

64-mm MCMs mounted on the MCM board

MCM board mounted within the 4381 Processor

64-mm MCM with a portion of the heat sink cut away 20

An impingement cooling nozzle ·20

Logical components in a 4381 Processor Model Group 11, 12, 13,

10.

General flow of data between the channels and processor storage 53

11.

Logical components in a 4381 Processor Model Group

or 3 62

12.

Data flow to and from processor storage

via

the high-speed buffers in a 4381

Model Group

or 3

13. The General Selection display 90

14. Dialup of a remote 4381 Processor via a 3275 display

15. Dialup of a remote 4381 Processor

via

a host processor emulating a 3275

display 92

16.

4381 Processor machine check code 103

17. 4381 Processor machine check interruptions

105

viii

A Guide to the IBM 4381 Processor

..._....

Section 01: Highlights

The 4381 Processor, available in four model groups,

an intermediate-scale,

general purpose processor that

compatible with System/370, other 4300, and

30XX processors.

implements System/370 architecture (as in System/370,

4300, and 30XX processors) and System/370 extended architecture (as in 308X

and 3090 processors).

Model Groups 11, 12, 13, and 14 of the 4381 Processor, which offer a wide range

of performance, are provided. Model Group 11, 12, and

4381 Processor units

are uniprocessors containing one instruction execution function. The Model Group

14 4381 Processor unit

a dual processor that contains two instruction execution

functions each of which has its own channels. The Model Group

processor unit

operates

a tightly coupled multiprocessing configuration under the control of one

operating system in which processor storage

shared.

Field upgrades of 4381 Processor model groups

supported. A 4381 Model

Group

Processor can be field upgraded to a 4381 Model Group 12 Processor, a

4381 Model Group 12 can be field upgraded to a 4381 Model Group 13, and a

4381 Model Group

can be field upgraded to a 4381 Model Group 14. This

support provides significant performance growth. The 4381 Model Group 14 has

an internal throughput rate of up to 4.9 times that of a 4381 Model Group

for

commercial processing and of up to 5.4 times that of a 4381 Model Group

for

scientific processing.

Model Groups

11through14

of the 4381 Processor offer improved price

performance relative to Model Groups

2, and 3 of the 4381 Processor, which are

withdrawn from marketing,

are model upgrades within these withdrawn model

groups. However, optional features, including processor storage upgrades, can be

installed in 4381 Model Group

and 3 Processors. In addition, these

withdrawn model groups can be field upgraded to the current 4381 model groups

as follows: 4381 Model Group

1toa4381

Model Group 12 or 13, 4381 Model

Group 2 to a 4381 Model Group

or 14, and 4381 Model Group 3 to a 4381

Model Group

14.

The 4381 Processors offer higher internal performance and improved price

performance for intermediate system users relative to 4341 Processors. This

improved performance

made possible by the use of large-scale integrated

technology for logic and processor storage. The logic packaging and cooling

designs implemented in 4381 Processors provide increased logic density without the

need for water cooling.

The

Processors support the range of commercial and engineering/scientific

data processing capabilities offered by System/370, 4300, and 30XX processors,

well

the advanced functions provided by System/370 and System/370

extended architectures.

Section

: Highlights 1

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