A process by which data, electronic or paper based is copied in some form so as to be available and used if the original data from which it originated is lost, destroyed or corrupted.
- A copy of files and programs made to facilitate recovery if necessary.
- A copy of key information to facilitate recovery during the cryptoperiod of the key, if necessary.
- To copy a key and/or metadata to a medium that is separate from that used for operational storage and from which the key and/or metadata can be recovered if the original values in operational storage are lost or modified.
- The process of copying information or processing status to a redundant system, service, device or medium that can provide the needed processing capability when needed.
Merriam-Webster Online Dictionarybackup (noun)
a) one that serves as a substitute or support - a backup plan
b) musical accompaniment
c) additional personnel who provide assistance
an accumulation caused by a stoppage in the flow - traffic backup
a copy of computer data (as a file or the contents of a hard drive) , also the act or an instance of making a backup
Merriam-Webster Online Thesaurusbackup (noun)
a crowded mass (as of cars) that impedes or blocks movement
SYNONYMS:backup, bottleneck, jam-up, logjam, snarl, tailback, tie-up
RELATED WORDS:tangle; gridlock, lock; congestion, traffic; crawl, delay, slowdown, stoppage
a person or thing that takes the place of another
SYNONYMS:backup, cover, designated hitter, fill-in, locum tenens, pinch hitter, relief, replacement, reserve, stand-in, sub
RELATED WORDS:alternate, understudy; apology, makeshift, stopgap; agent, assignee, attorney, commissary, delegate, deputy, envoy, factor, procurator, proxy, rep, representative, surrogate; assistant, reliever, second; successor, superseder