Introduction

Backup and recovery are processes that ensure that an SAP database can be reinstated with minimal disruption in operations after any kind of hardware, software, operational or environmental error or outage. These processes are a crucial factor in system availability and reliability.

Some of these processes are performed automatically by DB2 without any outside intervention, such as recovering the SAP database to its consistent state just before a z/OS system crash or an abnormal termination of DB2. Automatic recovery takes place at the next DB2 start. For other processes, there are integrated tools in DB2 that can be used for building efficient and reliable backup and recovery procedures.

Dependencies

Database administrators need to set up backup and recovery procedures for each individual SAP database. The characteristics of these procedures depend on: