77a8603f_ervation__Library_of_Congress___Definition
[Term] Storage: Nearline [Definition] 
A term used in computer science to describe an intermediate type of data storage that represents a compromise between online storage (supporting frequent, very rapid access to data) and offline storage/archiving (used for backups or long-term storage, with infrequent access to data). "Nearline" is a contraction of "near-online." See also "Offline Storage" and "Online Storage."
NDSA Levels of Preservation Glossary - National Digital Stewardship Alliance - Digital Preservation (Library of Congress)
Definition