This article gives details about the five most common types of backup: Full, Incremental, Differential, Daily Copy, and Copy.
Dedicated backup software commonly includes the following types of backups.
|Type of backup||Files backed up||Files marked as backed up||Media volume required||Notes|
|Full||All selected files even if they have changed since the previous backup of any kind.||All files marked as having been backed up.||High||
Always first backup in a backup cycle
Uncomplicated to restore
|Incremental||All selected files which have been created or modified since the last backup of any kind.||Copied files are marked as having been backed up.||Relatively low||Must be restored in exact order of creation after restoring full backup.|
|Differential||All selected files which have been created or modified since the last full backup.||Does not mark copied files as having been backed up.||Relatively high||Should not be mixed with incremental backups. Only most recent need be restored after restoring full backup.|
|Daily copy||All selected files which have been created or modified on the current day.||Does not mark files as having been backed up.||Relatively low||Must be performed every day. Must be restored in exact order of creation after restoring full backup.|
|Copy||Backs up all selected files.||Does not mark files as having been backed up.||High||Used most often to copy files from one computer to another.|