[NTLUG:Discuss] aic7xxx: infinite timed-out, ressetting onRed Hat install

[Kyle_Davenport@compusa.com]

>Kyle_Davenport at compusa.com wrote:
>>
>> No, don't blame the hard drive.  I have a Quantum Atlas IV u160/m that works
>> without a problem.  They are supposed to be backwardly compatible.  160Mb/s
is
>
>Indeed!  And they make a SCSI3 -> SCSI2 converter, so why make
>converter if they aren't backward compatible? :-)  All you lose is
>bandwidth.
>
>> the bandwidth for dual controllers - you would need at least 5 of those hard
>> drives to saturate it.
>>
>> I don't see how the AIC7xxx driver is supposed to work if you've disabled the
>> bios!

>If I understand correctly, the BIOS is used only for booting.  I have
>an Adaptec 2930B and the BIOS is off on all IDs and it works just
>fine, since I boot from /dev/hda.
>
>Kevin

Well that could be.  I was thinking that when it looked for scsi hosts it was
trying to communicate to the bios, but once it finds the "host"  (just the
adapter I suppose), it downloads those instructions next...

I had the same "0 hosts found" when I upgraded to RH6.2 because on upgrade they
stopped using initrd, which meant the AIC7xxx driver wasn't loaded which meant
it couldn't mount root...   I'm guessing it's because I build my own kernel with
aic7xxx compiled in, and removed any scsi module reference in /etc/conf.modules.

I wanted to suggest to Mike that he check out www.valinux.com.  They use mylex
raid controllers, and do their own modification of redhat.