Strategy for backup and recovery of the database application is considered to be very important in preventing data loss in any production system. As far as the application database size becomes very difficult to perform a full backup process in the time for scheduled backups, set by service level agreements. Consequently IBM improves its DB2 database management system, which has contributed in reducing the time required for backup and recovery, thereby increasing the performance of applications running on it. DB2 directly passes in an object and performs the backup of data and indicators. This feature makes the IBM DB2 is very flexible when restoring data.
IBM DB2 also implements the concept of incremental backup that changes between two backup images are recorded in the logs. In the scenario the General Database Administrator (DBA) is planning to database backups at fixed intervals (daily, weekly or even monthly). However, when you run the backup job, it creates a backup image, along with logs of changes. These two resources independently, you can restore a database application in the system of certain other, even if they get corrupted the original system. On the other hand, if there is damage to the data it can be very quickly and restored from backup. In addition, it also helps in finding, where corruption, so that errors can be very easily rectified.
Merging backup support for IBM DB2 is another function that creates backups very easy and flexible. It combines the incremental and differential backups of the most recent backup to create a full backup. As a result, the availability of the database is extended and the time spent on expensive backup processing is also reduced. History of the database DB2 uses to find a back link. Merge backup feature provided job DBA extremely easy as backup can be processed quickly, giving them time to do other database tasks simultaneously. In addition, because the recovery process is smooth and quick production, downtime in the event of an unexpected stop is minimal.
There are many backup tools that are available for IBM DB2. Atempo's time Navigator, for example, increased from the module, which provides online backup and recovery for database records, running on IBM DB2. This module supports storage area network and uses the backup methods and interfaces supported by DB2. Time Navigator for IBM DB2 is supported on IBM AIX, Linux, Sun Solaris, Windows 2000 and Windows NT.
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