Introduction

Introduction

This section contains the following topics:

Overview

Notation Used for Components

Integrity of Shared Resources

ENQ and RESERVE Propagation Methods

Hardware Reserves

How ECMF Manages Resource Conflicts

How You Requeue Batch Jobs That Cannot Obtain Resources

How You Free Unused Data Sets

How You Bypass Integrity Processing to Resolve Conflicts

How EDIF Prevents Data Set Damage

How You Prevent Attribute Modification and PDS Directory Overwrites

How EDIF Prevents Simultaneous Updates When Serialization Is Omitted

How EDIF Prevents Updates When Programs Extract Data Before Opening Data Sets

How EDIF Prevents Updates by Inappropriate Programs

How EDIF Prevents Unauthorized Read Operations