Backup Rotation Scheme

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A backup rotation scheme is a method for effectively backing up data where multiple media (such as tapes) are used in the backup process. The scheme determines how and when each piece of removable storage is used for a backup job and how long it is retained once it has backup data stored on it. Different techniques have evolved over time to balance data retention and restoration needs with the cost of extra data storage media. Such a scheme can be quite complicated if it takes incremental backups, multiple retention periods, and off-site storage into consideration.