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

Contents

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

5. Managing RDF

Recovering From File System Errors 5-1

Handling Disk Space Problems 5-5

Responding to Operational Failures 5-5

Communications Line Failures 5-6

Processor Failures 5-6

TMF Audited Volume Crash 5-9

TMF Subsystem Crash 5-9

TMF File Recovery Operations 5-10

Stopping RDF 5-11

Stopping RDF by Stopping TMF 5-11

Stopping RDF From the Primary System 5-13

Stopping RDF From the Backup System 5-14

Restarting RDF 5-14

Carrying Out a Planned Switchover 5-15

Standard Configurations for Switchover 5-15

Reciprocal Configurations 5-16

Takeover Operations 5-17

The RDF Takeover Operation 5-17

Preparing for Takeover Processing 5-18

Issuing the TAKEOVER Command 5-19

Checking Exception Files for Uncommitted Transactions 5-21

Preparing for Application Processing on the Backup System 5-22

Restoring the Primary System 5-23

Reading the Backup Database 5-23

Access to Backup Databases in a Consistent State 5-24

RDF and SQL DDL Operations 5-26

Performing Non-Shared Access DDL Operations 5-27

Performing Shared Access DDL Operations 5-27

Backing Up Image Trail Files 5-29

Making Online Dumps With Updaters Running 5-30

Doing FUP RELOAD Operations With Updaters Running 5-30

Exception File Optimization 5-31