Online backups

Use online backups to back up a database while it is running. During the interval that the backup is running, the database can be read, but writes to the database are blocked.

You can perform online backups by using the backup procedure or by using operating systems commands with the freeze and unfreeze system procedures.

• Using the backup procedure to perform an online backup
  The SYSCS_UTIL.SYSCS_BACKUP_DATABASE procedure locks the database so that any connection trying to write to the database will be frozen until the backup completes. Database reads can continue while the backup is running.
• Using operating system commands with the freeze and unfreeze system procedures to perform an online backup