RDF/IMP and IMPX System Management Manual (RDF 1.4+)

Contents

HP NonStop RDF/IMP and IMPX System Management Manual—524388-001

6. Maintaining the Databases

Understanding Database States 6-1

Backing Up Altered Database Structures 6-4

NonStop SQL Databases 6-4

Enscribe Databases 6-8

Resynchronizing Databases 6-9

Resynchronizing Entire Databases Offline 6-10

Resynchronizing Individual Volumes Offline 6-11

Resynchronizing Individual Tables or Files Offline 6-11

7. Online Database Synchronization

Overview 7-1

Synchronizing Entire Databases Online 7-2

Considerations When Synchronizing Entire Databases 7-4

Example of Synchronizing An Entire Database Online 7-9

Synchronizing Selected Database Portions Online 7-12

Overview 7-12

Partial Database Synchronization Issues 7-13

Phases of Online Database Synchronization 7-21

Extractor Phases 7-21

Updater Phase 2 7-22

Extractor Restart Considerations During Online Database Synchronization 7-22

When Is Online Database Synchronization Complete? 7-23

Extractor Messages 7-23

Updater Messages 7-23

Other RDFCOM Commands 7-24

8. Entering RDFCOM Commands

Command Description Elements 8-1

Purpose, Syntax, and Parameters 8-1

Where Issued 8-2

Security Restrictions 8-2

RDF State Requirement 8-2

Usage Guidelines 8-2

Output Displayed 8-5

Examples 8-5