Backup Storage Estimator

Intermediate10-15 minutesCross-platformBackup Storage Estimator

Prerequisites

• A rough estimate of average save size per server
• Data Redundancy and Storage Architecture

Use this calculator to estimate how much space your active backup footprint needs before retention, growth, and server count turn into a quiet storage problem.

Tools

Backup Storage Estimator

Estimate how much backup space your active restore points need before retention and save growth turn into silent operational risk.

Planning aid only. Storage growth is workload-dependent and should be revisited as saves, maps, and mod state expand.

Active server count2 serversAverage save size18 GB per serverBackup frequencyHourly + daily + weeklyDaily + weeklyCustom simplified cadenceRetention presetShortStandardExtendedGrowth expectationStableModerate growthFast growth

acceptable for small live use

Dedicated backup target with headroom

Estimated short-term active footprint2.1 TB

Recommended storage headroom741 GB

Planning target2.8 TB

Storage tieringUse a dedicated backup destination instead of sharing space with the live server volume.

Why

• This is beyond a throwaway dev snapshot setup and needs enough room for clean rollback points.
• The recommendation assumes real retention discipline rather than ad hoc manual copies.

Read next

Data Redundancy and Storage ArchitectureRecommended Server HardwareSetting Up Your Server Panel

What this tool is good for

• Estimating short-term restore-point footprint before buying disks or carving out NAS space.
• Flagging when a simple single-target backup setup stops being enough.
• Exposing how quickly aggressive retention can outgrow the original plan.

What this tool is not

• A replacement for real retention policy design.
• A durability guarantee.
• A complete disaster-recovery architecture on its own.

Read next

• Data Redundancy and Storage Architecture
• Recommended Server Hardware
• Setting Up Your Server Panel