# Immich Storage Calculator: Size SSD, HDD, RAID and Backup Capacity

Canonical: https://cloudzat.com/immich-storage-calculator/

Purpose: Immich storage buying guide.

Decision: Enter your current library, annual growth and planning horizon, then add a generated-media allowance, free-space reserve, primary redundancy and independent backup copies. The result separates projected originals, usable primary capacity, approximate raw primary capacity and backup capacity so you can price each layer with the live SSD, HDD and NAS listings above.

- Application storage: Local SSD — Keep database and application data on responsive local storage.
- Original media: HDD or NAS pool — Use economical protected bulk storage for the photo and video library.
- Redundancy: Size raw capacity separately — Mirrors and parity reduce usable space, so raw capacity must exceed the library target.
- Backups: Budget independent copies — Do not count the primary array as the backup copy.

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