Immutable Storage Sizing Calculator

Calculate storage requirements for immutable snapshots and retention policies. Created by Aleksandr Sukhov (0xff5.com) • Last Updated: February 03, 2026

✓ Client-side calculations only • No data transmitted • Real-time visualization

Storage Parameters

Baseline Data

0 TB
Current data size

Immutable Snapshots

0 TB
During retention period

Total Required (Day 1)

0 TB
Immediate requirement

Projected (Day 30)

0 TB
Including growth

Storage Composition at Full Retention

Baseline Data
Immutable Snapshots
Net Growth

Storage Growth Over Time

Detailed Breakdown

Metric Value Description

How Immutable Storage Works

  • Baseline Data: Your current data that exists regardless of immutability settings
  • Immutable Period: During this period, snapshots cannot be deleted or modified
  • Accumulation Phase: From Day 0 to Day N (immutability period), all changes accumulate
  • Steady State: After Day N, old snapshots can be deleted, but new ones are created
  • Net Growth: If deletions < changes, storage continues to grow over time
  • Snapshot Frequency: More frequent snapshots require more granular change tracking