I have a WD7500BPVT-22HXZT1 and the Load/unload cycle count in disk utility increased from 12,000 to 13,000 within about an hour on battery!
hdparm -B doesn't have any effect on the frequency of parking of disk heads up until 254 which completely prevents the heads from parking, nor hdparm -S has any effect on the delay between individual parkings (if it should have any).
I have a WD7500BPVT-22HXZT1 and the Load/unload cycle count in disk utility increased from 12,000 to 13,000 within about an hour on battery!
hdparm -B doesn't have any effect on the frequency of parking of disk heads up until 254 which completely prevents the heads from parking, nor hdparm -S has any effect on the delay between individual parkings (if it should have any).
The drive is a Western Digital Scorpio Blue.