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What Is a Mirror Backup?

Updated on Apr 15, 2019 by Jean to Backup Utility

What is a mirror backup? This article introduces the basic knowledge about mirror backup.

Identical to a full backup, a mirror backup is a straight copy of the selected folders and files at a given instant in time. Mirror backup is the fastest backup method because it copies files and folders to the destination without any compression. However, the increased speed has its drawbacks: it needs larger storage space and it cannot be password protected.

While the other backup types collect all the files and folders being backed up each time into a single compressed "container file", a mirror backup keeps all the individual files separate in the destination. That is, the destination becomes a "mirror" of the source.