Does Amanda support differential backups?

• This article is for Amanda Enterprise (AE)
• Info Type: General

Info Description:

Differential backups contain all changes since last full backup.

Amanda terminology

Level 0 backup is full backup
Level 1 backup contains all changes since last level 0 backup.
Level 2 backup contains all changes since last level 1 backup.
…
Level n backup contains all changes since last level n-1 backup.

All amanda applications do not support all backup levels. Linux filesystem application (amgtar)
supports backup levels 0-399. All Amanda Enterprise applications support level 0 and 1
backup levels.