iX V6.5 (30391-90011)

Chapter 7 307

Logging and Recovery

7 Logging and Recovery

This chapter discusses how to maintain database consistency; that is, how to log logical

transactions and recover a TurboIMAGE/XL database from a system failure or program

abort. This chapter is divided into the following major sections:

• Recovery Options

• Logical Transactions

• Dynamic Roll-Back Recovery

• Intrinsic Level Recovery

• Logging Preparation

• Logging Status

• Logging Maintenance

• TurboSTORE/iX 7x24 True-Online Backup

• Roll-Forward Recovery

• Roll-Back Recovery

• DBRECOV Commands Used With Roll-Forward and Roll-Back Recovery

• Record Tables

• Post-Recovery Options

• The Mirror Database

A quick guide to recovery and logging options is found in appendix G, "Recovery and

Logging Quick Reference."