S3 — Data Protection & Maintenance 19 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.
3.3
Default short-term retention
7 days.
3.3
GFS
Weekly, monthly and yearly full backups kept beyond short-term retention.
3.4
Backup copy job source
Existing backup files. Never production.
3.5
Undo failover
Power off the replica and discard its changes.
3.5
Permanent failover
The replica becomes production.
3.6
CDP RPO range
Min 2 s, recommended ≥15 s, max 60 min. Default 15 s.
3.6
CDP short-term journal limit
168 hours (7 days).
3.6
CDP default long-term point interval
Every 8 hours.
3.6
CDP capture mechanism
VMware VAIO I/O filter on source and target clusters.
3.6
Universal CDP components
Veeam CDP Agent Service and Veeam CDP Volume Filter Driver.
3.7
No AAP means…
Crash-consistent backup.
3.8
NAS cache repository
Holds metadata for change tracking, not file data.
3.9
Agent backup policy vs job
Policy is agent-managed (laptops). Job is server-managed (always-on servers).
3.10
Health check
Checks the latest restore point. Bad blocks fixed from production on the next run.