TopicBackup & PRA →
Simple definition
A backup that copies the changes made since the last full backup.
Technical definition
The HTML backup will be able to perform the full backup process, but usually requires fewer elements than a long incremental chain to restore.
What is it used for ?
Find a compromise between backup time and simple restoration.
Practical example
Each differential backup of the week resumes all the changes since the Sunday complete.
Common issues
- Volume increasing during the week
- Confusion with incremental
- Maldimensional backup window
Related terms
Full backup · Additional backup · Safeguard detention
Key takeaway: This entry explains the general operation of the term. Exact settings may vary depending on software, vendors and environments.