S
stockDrover
I am buying a new drive from the Hitachi 7K320 line...very nice
drives.
The line offers 80.120.160.250.320.
All drives through 160gb are one platter. The rest are two platters.
I was settled on the the 160 as the highest density on one platter.
Since it is for my laptop it goes without saying that heat is the
enemy, so I reasoned that 1 platter is better than 2. Less mass = less
inertia, less inertia=less power. less power=less heat. I know we're
talking little nits here...the big nits have been taken care of. chech
the specs
http://www.hitachigst.com/portal/site/en/products/travelstar/
The 80 is a 160 with a broken head
the 250 is a stack of 120's
The 320 is obviously a stack of 160s.There are 4 heads instead of
two.
4 sectors can be read/written simultaneously.
I have to believe the drive gods are clever enough to map consecutive
clusters vertically through the platters thats why we call them
cylinders.
Though theoretical, the 4-head could be possibly twice as fast as the
2-head in reading or writing in some cases.
If this was the case then I would be willing to put up with a little
less battery life. If its not the case, then drive geometry and
mapping has taken some wierd turn where its efficient to have 3 out of
4 heads idle on every stroke.
The specs at Hitachi are for the whole family,not broken down by
drive. So I'm having a doubt:
All else being equal:
Will the 320/2-platter/4-head perform better than a 160/1-platter/2-
head or not?
Thanks for playing, send fish
drives.
The line offers 80.120.160.250.320.
All drives through 160gb are one platter. The rest are two platters.
I was settled on the the 160 as the highest density on one platter.
Since it is for my laptop it goes without saying that heat is the
enemy, so I reasoned that 1 platter is better than 2. Less mass = less
inertia, less inertia=less power. less power=less heat. I know we're
talking little nits here...the big nits have been taken care of. chech
the specs
http://www.hitachigst.com/portal/site/en/products/travelstar/
The 80 is a 160 with a broken head
the 250 is a stack of 120's
The 320 is obviously a stack of 160s.There are 4 heads instead of
two.
4 sectors can be read/written simultaneously.
I have to believe the drive gods are clever enough to map consecutive
clusters vertically through the platters thats why we call them
cylinders.
Though theoretical, the 4-head could be possibly twice as fast as the
2-head in reading or writing in some cases.
If this was the case then I would be willing to put up with a little
less battery life. If its not the case, then drive geometry and
mapping has taken some wierd turn where its efficient to have 3 out of
4 heads idle on every stroke.
The specs at Hitachi are for the whole family,not broken down by
drive. So I'm having a doubt:
All else being equal:
Will the 320/2-platter/4-head perform better than a 160/1-platter/2-
head or not?
Thanks for playing, send fish