Features
NBackup’s capabilities, one page each. Each page explains what the feature does, why it works the way it does, and how to configure and use it.
| Feature | What it covers |
|---|---|
| Planning & scheduling | Multilevel levels, the bump rule, automatic promotion, the two capacity limits, forecasting. |
| Cost forecasting | $/month storage and egress estimates for cloud media — fully offline. |
| Archivers | What produces the dump stream — GNU tar (default), live PostgreSQL clusters (17+ incremental base backups), and bring-your-own-command pipes. |
| Storage media | Disk, tape (libraries & single drives), and cloud object stores. |
| Replication & tiered storage | nb copy and nb sync — land fast, replicate offsite. |
| Encryption | Source-tied gpg encryption that keeps copies interchangeable. |
| Verification & drills | nb verify (integrity) and nb drill (proven recoverability — the 0 of 3-2-1-1-0). |
| Recovery | Whole-DLE restore and interactive file-level recovery. |
| Pruning & retention | Per-medium retention, the safety floor, and capacity reclamation. |
| Holding disk | A fast scratch buffer that feeds a slow tape or cloud at disk speed. |
| Remote sources over SSH | Back up remote hosts with no NBackup software on the client. |
| Monitoring & reporting | nb status, nb report, and pluggable failure alerting. |
| Status website | nb web — a read-only, mobile-friendly dashboard (overview, runs, media history, drills) that takes no lock. |
New here? Read Concepts first for the vocabulary, then come back. Looking for a complete worked setup? See Scenarios.