* The process whereby an organization's backup tapes are overwritten with new archived data usually on a fixed schedule (e.g., the use of nightly backup tapes for each day of the week with the daily backup tape for a particular day being overwritten on the same day the following week; weekly and monthly backups being stored offsite for a specified period of time before being placed back in the rotation). [1] [2]
* Backup tape recycling is the process whereby an organization’s backup tapes are overwritten with new backup data, usually on a fixed schedule (i.e., the use of nightly backup tapes for each day of the week with the daily backup tape for a particular day being overwritten on the same day the following week; weekly and monthly backups being stored offsite for a specified period of time before being placed back in the rotation). [3]
* The act by which old backup tapes are overwritten with new data. [4]

[1] Merrill Corporation, Electronic Discovery Glossary.
[2] Fenwick & West LLP, FWPS eDiscovery Terminology (11/6/2005). Citing Applied Discovery’s Bone up on Backup, http://www.lexisnexis.com/applieddiscovery/NewsEvents/PDFs/BoneUpOnBackup.pdf
[3] Kroll Ontrack, Glossary of Terms, http://www.krollontrack.com/glossaryterms
[4] Vinson & Elkins LLP Practice Support, EDD Glossary.

Attributions
- EDRM (http://edrm.net)