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Backup Rotation
To guard against backup media failure, we recommend that you implement full Backup Rotation or alternatively Backup Rotation with Differential Backup or Incremental Backup to minimize your risk. A new differential backup or incremental backup is always performed as a full backup. All differential backups and incremental backups are automatically time stamped to keep track of the time sequence of differential backups or incremental backups. Below is an example of using Backup Rotation with Differential Backup or Incremental Backup.
Monday: Create a new differential backup or incremental backup (first task named Monday).
Tuesday: Create another new differential backup or incremental backup (second task named Tuesday).
Wednesday: Run differential backup or incremental backup based on Monday's Backup.
Thursday: Run differential backup or incremental backup based on Tuesday's backup.
Friday: Run differential backup or incremental backup (first task Monday) again.
Saturday: Run differential backup or incremental backup (second task Tuesday) again.
You can continue this double chain by performing more differential backups or incremental backups until you decide to start over with two new differential backups or incremental backups periodically, which is recommended.
Whenever you need to restore your differential backup, start with the first backup followed by the last differential backup. Whenever you need to restore your incremental backup, start with the first backup and continue with each subsequent incremental backup. For example, if you want to restore Friday, start with Monday incremental backup and then the Wednesday and Friday incremental backups. By doing it this way, should any one backup file fails, you can almost always restore your backup data from the other chain and lose the most one day of data. You can design your own redundancy to give yourself additional protection with the TurboBackup full and incremental backup feature.
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