Comment 312 for bug 59695

Quick test:
Gateway 7330GZ (PC Linux, Fujitsu HD 80 GB, no clicking) with over 66,000 load cycles ~60 load cycles per hour:
with -B 255 it completely stops the load cycles.

DELL 1400 (Ubuntu, Toshiba HD 160 GB, no clicking) 4,500 load cycles ~60 load cycles per hour:
 -B 255 or -B 244 did not change the load cycles.

Same DELL with Windows XP, Sp 2: ~60 load cycles per hour (no clicks). Changing power management settings did not do anything.