HP B6960-96035 - Manual (Page 109)

Figure 29 Full backup with daily level 1 incremental backups
This policy requires slightly more time for backups and also requires a little more
media since you back up all the changes from the last full backup every day. To
restore files from Thursday’s backup, you need to provide media for the full and for
Thursday’s incremental backup, that is, two media sets only. This considerably
simplifies and speeds up the restore.
Example 3
Depending on your environment and requirements, the best solution could lie
somewhere in between. For example, you may have the following scheduling policy:
Concepts guide 109