About RetentionLab

Practical calculators for system administrators planning backups, transfers and recovery exercises.

Two tools, one planning workflow

The Retention Planner makes a generic retention policy visible on a calendar. The Transfer Estimator puts a duration on a data transfer, accounting for network efficiency and a storage bottleneck.

Designed for exploration

Change the inputs to compare scenarios before testing a policy or recovery plan in your own environment. Calculations run in your browser: you do not need an account or upload access to your backups.

Public beta

RetentionLab is an independent project, not a backup service or a vendor-certified policy emulator. It does not connect to infrastructure, perform backups, delete snapshots or guarantee recovery outcomes.

Validate any operational decision with your backup product and a real restore exercise. Read the methodology and worked examples for the assumptions behind each result.