Re: cache size wrong on quantum disk in 2.0.30
Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
Wed, 9 Jul 1997 14:11:21 +0200 (CEST)
On Wed, 9 Jul 1997, Samuli Kaski wrote:
> On Tue, 8 Jul 1997, Marty Leisner wrote:
> > I recently got a quantum bigfoot 6.2 gig IDE disk...
> >
> > Booting, the information has (this is 2.0.30):
> > hda: QUANTUM BIGFOOT_CY6480A, 6204MB w/17152kB Cache, LBA, CHS=790/255/63
>
> Apparently this is a common problem with either some (E)IDE
> drives or the checking algorithm itself:
>
> hdb: QUANTUM FIREBALL_TM1280A, 1222MB w/76kB Cache, LBA, CHS=621/64/63
>
> It should read 128 Kb, not as big difference as yours though :)
That's because the cache is shared with a part of the firmware. Modern drives
have almost no firmware in ROM, the largest part is read from the disk.
Greetings,
Geert
--
Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/m68k on Amiga http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium