Cumulative and Differential Incremental Backups

What is the difference between cumulative incremental and differential incremental backups?

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Differencial backup: This is the default type of incremental backup which backs up all blocks changed after the most recent backup at level n or lower.

Cumulative backup: Backup all blocks cahnged after the most recent backup at level n-1 or lower.

boyansmail

  • Aug 15th, 2010
 

A cumulative incremental backup is the backup of all files that have changed since the last full backup.

A differential incremental backup is the backup of all files that have changed since the last backup.

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