Drive Migration Calculator

Plan a storage pool or drive swap — capacity, RAID overhead, and rough transfer time. Runs entirely in your browser, nothing is sent anywhere.

Drive sizes

Transfer connection

Total drives—

Raw capacity (JBOD)—

Usable — RAID 1 (mirror)—

Usable — RAID 5 (single parity)—

Usable — RAID 6 (double parity)—

Est. full-pool transfer time—

RAID overhead figures are simplified estimates (no stripe/controller-specific accounting) — useful for ballpark planning, not a substitute for your RAID controller's own calculator before you commit real data.