Objective 3.2 5 cards
3.2
.vbk / .vib / .vrb / .vbm
Full / forward incremental / reverse incremental / metadata.
3.2
Reverse incremental I/O
3x per changed block.
3.2
Synthetic full I/O
2x per block (read + write). No production read.
3.2
Forever forward incremental
One full forever. Oldest increment merged into the full when retention is exceeded.
3.2
Fast clone
ReFS or XFS block cloning. Makes synthetic fulls and merges near-instant and space-efficient.