This is what MOST ppl are saying.
There seems to be a lot of lingering doubt about if mounting the hard disk standard or upright ( on its side ) has any effect on its shock absorbing abilities. here is my .02$
Think about the shocks in your car - do they go from left to right, no they go up and down. when you knock over a domino, does it fall up and down , no it falls on its side. If someone bumps into you and knocks you over, do you involuntarily jump up and down, no, you fall over.
All this to say - your hard drive is similar to a record player (but record players are not magnetic), it has a magnetic pickup that hovers over a spinning disk. the pickus are mounted on a springy little arm, and the arm moves back and forth across the disk surface to read data. now, if your hard drive is siting in std fashion like a record player, and it goes over a speed bump the tendency for the springy little arm with the magnet to go crashing into the platter.
Now imagine the hard disk on its side. if you hit a bump, the heads are not going crashing into the platter. the force is exerted on the gears in the servo motor that move the head from side to side. true , this would wear on the gears slightly, but the gears are much better equipped to handle stress than the heads crashing into the platter. And yes the heads are going to vibrate slightly, but not nearly as much as they would if it was mounted flat / std.
So with that said I HIGHLY recommend the sideways mounting of the HD.
[This message has been edited by gizmomkr (edited 01-12-2001).]
Well, ignoring the fact that sideways shock absorbtion in a car wouldn't make sense, and that HD heads are not a magnet, sideways mounting is the way go to. Sure, horizontal is more compact, but you are smacking the heads into the platter when you go over a bump. Vertical mounting just causes them to fly around for a second and then continue normal operation. Vertical gets my vote any day.
London, Ontario, Canada
Player: Cyrix 200, 32MB RAM, 10.2Gig Quantum HD, Onboard EtherNet/Sound/Video, Custom Lexan Case, Arise DC-DC, Win95 Kernal w/Custom Player
Car: '86 Mazda RX-7 w/Basic Performance Upgrades
Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
"If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."
Well guys, I live in Mackay, Australia and we have the worst roads & drivers in all of Australia I think. People comment "gosh mackay drivers are bad" and we are forever *****ing about the roads here. So when I make a prototype box I could do test on some older (less than 1Gb) hard drives. or I could even just mount them in my car now and see how it goes.
Ok well, was was trying not to get to geeky, but I revised the post to reflect a beter description of a HD Head.