Skip to content
WHFS Headroom
Labeled metal hard drives standing in disciplined rows along steel archive shelf soft glow

DH-00 · Department

Drives & Hardware

Where big files live after the internal drive fills up. Inventory pass completed August 14, 2026, carrying 2 worked fiches.

Internal storage stopped growing about the time photo libraries learned to shoot video, so offloading became permanent household infrastructure rather than an emergency measure. This department covers the arithmetic of purgeable space and the craft of moving libraries intact.

Format choices, relocation commands, tethered-versus-portable duty assignments and verification rituals all appear in plain prose, because hardware mistakes cost more than any software subscription ever quoted.

DH-01
August 14, 2026

the money Finder lends you

Why macOS claims capacity it hasn't freed yet, how thinnables release on demand, and what this means buying drives.

  • Difficulty: Advanced
  • Time: Eighteen minute read

Reading order. Purgeable space explains most availability confusion; start there before buying anything.