[CentOS] Adaptec 39320A woes

[Michael St. Laurent]

> Plant, Dean wrote:
> > Simple fix,
> > 
> > Adaptec & CentOS = :-(
> > LSI & CentOS = :-)
> 
> Which is why after a few hours of testing I decided to indeed buy a
> couple of LSI cards to test with -- far better than a lot of 
> frustration.
> 
> But, meanwhile, I decided to test one more thing: just 
> suppose that the
> SCSI auto-negotiation, which worked fine before, had suddenly given up
> in version 3.0 of the aic79xx driver?
> 
> I forced the transfer rate in the Adaptec BIOS for those IDs to the
> maximum that my Infortrend could support (U160) and for good measure
> disabled "Disconnect" as well. Then, rebooted into 2.6.18-8.1.6&8, and
> it worked: User==Goal==Curr==160.0 MB/s.
> Apparently, the latest aic79xx driver V3.0 does no longer support
> auto-negotiation, whereas all drivers <=1.3.11 did negotiate 
> correctly.
> 
> Michael, maybe that works for you as well (unless your tapedrive
> actually does do U320)?

I did the same (changed the speed in the BIOS settings) and it's
working.  I tried it at 80 but I think I'm going to bump it to 160 and
see if it works.

I still wish I could figure out why the adaptec kernel driver won't
install though.  Maybe I'll try downloading the source and manually
compiling the kernel module.