Difference between revisions of "Back-up"
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===Technical Definition=== | ===Technical Definition=== | ||
Revision as of 21:49, 23 November 2010
Backup
Technical Definition
Backup (or back-up) is a way of copying files to one or more places (independent of the normal file system) to avoid loss of data in case of a mass failure or system crash.
In Layman's Terms
Backup are copies of important files that are saved elsewhere, so in case everything breaks you still have your files.
Examples
RAID
RAID stands for Recursive Array of Independant Disks, and involves copying saved files to multiple disks so that, in the event that one fails, another still has a copy of the file. RAID is popular because servers can implement many disks, and having more disks implemented means the data storage is more reliable.
