From: William Van Tuyl (wvantuyl_at_iso.net)
Date: Tue Oct 03 2000 - 10:26:55 EDT
Yes but that is like saying that because one car's engine has a higher RPM than
another it is faster. It is the overall system speed that counts. And just like
cars, one drive could be faster at the short haul (small files) while another
would be faster at long haul (large files). So a comparison of all specs is a
better indication than just drive RPM. Of course system bottlenecks count too.
So a drive can be "faster" in one system than another.
To carry the analogy to the ridiculous, which is faster, a dragster or a race car
at Le Mans? and which do you want to drive, a Miata or a Peterbuilt?
Bill
Stephan F Andre wrote:
> RPM almost always does indicate speed, in that the faster a
> disk revolves the faster the disk is positioned under the
> head again to get more data. Now you could I suppose come
> up with a strange enough system that extra speed wouldn't
> matter, but that isn't the way most disks are these days.
>
> Hmm. The www.ibm.com/storage web site should list all the
> details on all the disks. When I have time I'll look there...
>
> --STeve Andre'
>
> >
> > > One person described the increase as "noticeable, but not
> > > dramatic."
> >
> > Between the 30 vs 32 Gig or the 30 vs the 12 Gig?
> >
> >
> >
> >
> > BTW - RPM does not necessarily dictate speed. Right?
> >
> > Thought exercise:
> >
> > If I pack in 30gigs onto a disk instead of 12Gigs, wont the 30gig be reading
> > more data per revolution of the disk?
> >
> > Would be nice to see all the real specs. Seek time, burst throughput, and
> > other specs that I'm guessing HDD makers slap onto their device.
> >
> > -Will
> >
> > > -----Original Message-----
> > > From: Emanuel Brown [mailto:epbrown01_at_att.net]
> > > Sent: Tuesday, 3 October 2000 6:47 a.m.
> > > To: thinkpad_at_cs.utk.edu
> > > Subject: Re: The speed of the 30 Gig Drives
> > >
> > >
> > > On Tue, 3 Oct 2000 02:37:04 +1300, you wrote:
> > > >Are these new IBM drives any faster than say my 12Gig Travelstar?
> > > >Or the 18-20 Gig HDDs?
> > >
> > > The only 12.5mm drive faster than 4200 rpm is the 32GH, which is
> > > 32GB and 5411 rpm.
> > > >
> > > >Any real world increase in speed?
> > >
> > > One person described the increase as "noticeable, but not
> > > dramatic."
> > > Emanuel
> > > "Everybody wants a normal life and a cool car;
> > > most people settle for the car." Chris Titus
> > > 1983 911 SC
> > > http://home.att.net/~epbrown01/91183.jpg
> > >
> >
> >
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