If an error occurs in the database as a result of a disk error or for some other reason, the HiRDB administrator must perform the database recovery operation. To be prepared for database errors, the HiRDB administrator is responsible for performing the following tasks:

• Making backups
• Unloading system log information (creating unload log files)

In addition, the following functions are available as options for making backups:

• Differential backup facility
• Backup hold
• Frozen update command (pddbfrz command)
• NetBackup linkage facility

Organization of this section

7.2.1 Making backups

7.2.2 Unloading system logs (creating unload log files)

7.2.3 Differential backup facility

7.2.4 Backup-hold

7.2.5 Reducing the time needed to make backups of user LOB RDAREAs (frozen update command)

7.2.6 NetBackup linkage facility