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TechnologyGenerated accuracy model review: 2026-05-06

Log Retention Storage Calculator accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • Billable GB = daily ingest x days x overhead factor x replicas / compression ratio.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • Daily Log Ingest: 250 GB/day
  • Retention Period: 90 days
  • Compression Ratio: 2 :1
  • Replica Count: 2
  • Index Overhead: 25%

Expected outputs

  • Retained Storage: 27.47 TB
  • Raw Retained Logs: 22,500 GB
  • Billable Storage: 28,125 GB

Known limitations

  • This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
  • Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

  • Inputs are user-entered because pricing, deadlines, policies, and technical limits vary.
  • Calculations run locally in your browser and do not store passwords, incidents, network designs, or security program data.
  • This is planning math, not security assurance, legal advice, or a substitute for testing.

Unit handling

  • Daily Log Ingest accepts values in GB/day.
  • Retention Period accepts values in days.
  • Compression Ratio accepts values in :1.
  • Replica Count accepts numeric values.
  • Index Overhead accepts values in %.
  • Retained Storage is displayed in TB.
  • Raw Retained Logs is displayed in GB.
  • Billable Storage is displayed in GB.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.
  • Input precision follows configured step values where provided.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current log-retention-storage-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Log Retention Storage Calculator.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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