Comment 8 for bug 104535

PowerUser (i-am-sergey) wrote :

Just to let you know: Hitachi uses quite special own technology to park HDD heads outside of magnetic disks area to a special parking ramp. This causes HDD heads not to suffer from parking - they're NEVER land on disk surface during parking. So, actually, Hitachi HDDs can handle a LOTS of starts\stops without any real problems (a bit like CD\DVD drives do). Hitachi even recommending aggressive power management on their own to certain degree due to this fact. However well, stopping HDD every minute is an overkill anyway. And yes, not each and every HDD has such wonderful heads parking system.

You can read more in following whitepaper:
http://www.hitachigst.com/tech/techlib.nsf/techdocs/9076679E3EE4003E86256FAB005825FB/$file/LoadUnload_white_paper_FINAL.pdf