Forward Incremental Backup is a method where an initial full backup is followed by incrementals containing changes since the previous point.
Simple definition
Forward Incremental Backup is a method where an initial full backup is followed by incrementals containing changes since the previous point. It belongs to the Backup / PRA vocabulary and is useful when reading architecture diagrams, product documentation, logs, or administration procedures.
What is it used for?
Its main purpose is to reduce daily backup time and data volume after the initial full. The practical value depends on the surrounding architecture, security model, and operational requirements.
How does it work?
Each incremental depends on the preceding chain to reconstruct later points unless the product performs synthesis or transformation operations.
Key points
- Scope: A method where an initial full backup is followed by incrementals containing changes since the previous point.
- Operational goal: Reduce daily backup time and data volume after the initial full.
- Implementation: Each incremental depends on the preceding chain to reconstruct later points unless the product performs synthesis or transformation operations.
Points to watch
A backup is reliable only if restore is tested; document RPO/RTO, retention, immutability, and chain dependencies.
In short
Forward Incremental Backup = a method where an initial full backup is followed by incrementals containing changes since the previous point. Use it when you need to reduce daily backup time and data volume after the initial full.