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SubjectRe: Ideas for v2.1
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On Tue, 11 Jun 1996, Mikael Abrahamsson wrote:

> Fixing the ide-code so that it doesnt spew errormessages and other
> weirdness when you just have /dev/hda and /dev/hdc (two master disks) and
> it takes for granted that if you have two ide disks, they should be
> /dev/hda and /dev/hdb. I think this is in the partition check part. I
> changed back to having them on the same bus just to get rid of the
> cosmetical error. It still worked with hda and hdc.
>
hmm.. i have a hda and and hdc and my system works fine. i have a
DTC-2278 controller though but i dont know if that makes a difference.
it is probably a distribution thing i have a redhat 3.0.3 system.

hda: WDC AC2420H, 405MB w/128kB Cache, CHS=989/15/56
hdc: SAMSUNG PLS-31274A, 1213MB w/256kB Cache, LBA, CHS=2466/16/63
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15 (serialized with ide0)

now for some other disk questions and qualms (?)....
when it says serialized above, does than mean i can only access one at
once? can i paralelize them? I thought that thios was the advantage to
haveing the diskks on seperate controllers but i cant seem to hear them
being acced at once... also... maybe with the individual IDE chipset docs
there could be something about what is safe to try with hdparm... i tried
hdparm -p with my DTC-2278 and it ate my disk in a blaze of glory...
(compltly skewed clean my partition table.. as well as my ext2
superblock....) in any case dont try it unless you know what your doing,
and if you do know what your doing, write some docs.. please! or point me
to them... <grin> see-ya..
John



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