✓ Small-team database recovery planning
✓ Native versus managed backup decisions
✓ Isolated rehearsal and operating-cost records
— Live incident command execution
— Guaranteed failover or recovery
— Security or compliance certification
— Laptop-only backup shopping
What the calculator measures
The tool divides an entered copy size by an entered transfer rate, then adds your own estimates for retrieval preparation, decryption, import and validation. It assumes a sustained rate and a single transfer. Protocol overhead, contention and provider limits can make reality slower.
Use measured inputs when possible
Prefer an observed rehearsal rate over an advertised connection speed. Make sure you distinguish megabits per second from megabytes per second. A link speed is not proof that storage can deliver data at that rate. Keep the units in the record so a reviewer can reproduce the estimate.
Check the unmeasured stages
Database restoration can take substantial time after the bytes arrive. Index work, ownership fixes and application checks may dominate the total. If a stage has never been tested, label the estimate as uncertain; entering zero simply because it is unknown will understate the recovery budget.
Interpret the result conservatively
If even the idealized estimate exceeds the objective, the plan needs attention. If it fits, you still need a rehearsal. This tool cannot establish an SLA or compare merchant performance, and it does not send the entered values to a backup provider.
Reproduce the fictional example
For a 50 decimal-GB artifact transferred at a sustained 100 Mbps, idealized transfer time is 50 × 8,000 ÷ 100 ÷ 60, approximately 66.7 minutes. Add ten minutes of preparation, forty-five minutes for restoration and twenty minutes for validation: about 141.7 minutes in total. A two-hour objective already fails this estimate. A three-hour objective is not proven by it; real transfer overhead and unmeasured tasks remain. Put any decryption time in the preparation or restore estimate consistently and record that convention.
The evidence behind this buying guidance
This guide draws on PostgreSQL: backup and restore, SimpleBackups backup storage. Merchant-controlled records describe the provider’s own capabilities, terms or standards; they do not independently validate those claims. These records do not establish independent confirmation of the product claims.
Verify any current price, plan limit, label direction, compatibility rule, or commercial term that would materially change the decision. The dated source ledger shows the underlying records so this conclusion can be checked and updated.
Sources used for this page
These records support the facts and comparisons above. Merchant-controlled records are labelled so you can separate product claims from independent evidence.
- PostgreSQL: backup and restore — Platform documentation · postgresql.org · Merchant-controlled · checked 2026-10-01
- SimpleBackups backup storage — Merchant documentation · simplebackups.com · Merchant-controlled · checked 2026-10-01