Chapter 6. Performance Considerations

SCP Messages

347

Abend Codes

347

HSC ABEND Codes

347

SCP ABEND Codes

347

Software Trace Facilities

348

CP Trace Table

348

CCWTRACE

348

VM (CP) Debug Commands

349

SCP SET TRACE Command

349

SCP Internal Trace Table

349

IPARML (IUCV Parameter List)

353

IUCV Interrupt Buffer

360

Diagnostic Capabilities

366

SCP Trace Facility

366

Supervisor Call and Abnormal End Dumps

366

Error Recording Data Set Records

366

SCP External Trace Facility

367

SCP Trace Formatter Utility

368

Supervisor Call (SVC) Functions

370

SCP GTRACE Emulation

372

HSC Internal Trace Table

374

HSC TRACE Command

376

Diagnostic Commands

377

VM (CP) Commands

377

SCP Debug Mode

377

Setting Initialization Sequence Break-Points

377

SCP Diagnostic Subsystem Commands

379

HSC Diagnostic Commands

383

CDS Recovery Capabilities

385

Control Data Set Recovery

385

Dump Processing

391

Type of Dumps Supported

391

How to Request a Dump

391

What to do When a Dump Occurs

392

Dump Analysis Using SLUIPCS

394

Major SCP Data Relationships

400

Diagnostic Techniques

402

Common Dump Analysis Tasks

405

Chapter 6. Performance Considerations

411

Overview

411

How Library Activity Affects Library Performance

411

How Systems Programmers Control Library Performance

412

How Operators Control Library Performance

412

Monitoring Library Activity and Performance

412

Using the Activities Report Utility

412

xiiVM/HSC 6.0 System Programmer’s Guide

1st ed., 6/30/04 - 312579601

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StorageTek 6 manual Performance Considerations