Ultra 160 Support in Redhat 7.1 (aic7xxx 6.1.7)

[Bernhard Burgermeister]

On Fri, 19 Oct 2001, jimmy wrote:

> Is there Ultra 160 support in version 6.1.7 of AIC7xxx
> driver? I am using the one that comes with Redhat 7.1,
> 2.4.2 kernel. AIC driver is built into the kernel.
>
> 36 GB 15K Ultra 160 Seagate Cheetah hard drive is not
> booting while  9 GB Ultra 2 IBM boots fine. I am using
> Adaptec 7892A (rev 2) Controller.
>
> I get:
> (scsi0: A:1:0): parity error detec ted in Data-in
> phase ...


As I have similar problems, here my report:

I have an Adaptec 29160 and tried to connect an EasyRaid II U3 to it and
get the same errors as above (I can send detailed output with verbose in a
few days). I tried kernel version 2.4.2-2 from Redhat,
2.4.7, 2.4.9 and 2.4.10 from kernel.org. - always the same result.

Now the funny parts:
if I leave the adapter-config to 160MB/s everything works, except for many
error-messages. If I reduce the speed in the Controller-Setup to something
lower (tried 80,40,20,10) there are much more error-messages and the
system hangs after the scsi-scan shping endless SCSI-Errors.

If I disable LVD by using an old non-LVD-TErminator the system speeds down
to 40MB/s and everything works fine (I'm using the system in this mode
now).

But it is not a general U160-Problem as I have a second system with 5
IBM-U160-SCSI-Disks connected to an identical controller that is working
fine at 160MB/s

I tried several cables (the one that worked on the IBM-disks) round and
flat ones and terminators - everything sold for U160, and both
controllers.


I would appreciate any help, because disabling LVD is not the best way,
because I have to connect a second raid soon - each transfering about
40MB/s on its own.

Regards,
Bernhard B.


To Unsubscribe: send mail to majordomo at FreeBSD.org
with "unsubscribe aic7xxx" in the body of the message