On 01-Feb-2000 Rainer Mager wrote:
> From: Peter Pregler [mailto:[EMAIL PROTECTED]]
>> I had similar problems (actually your messages could be a cut-and-paste of
>> my old logs) with my box at the beginning. The actual problems was that
>> the scsi-bus did not fullfill the specifications. Replacing some hardware
>> (hot-swap boxes) solved it. BTW, all worked well under DOS in the
>> test-environment shipped. But as soon as linux got on the box and did
>> _really_ use the bandwidth on the bus the troubles showed up (timeouts,
>> renegotiation, slowdown ...).
>
> Hmm, good info here. But I don't know how it helps. I know and acknowledge
> that some of my drives are old/slow but shouldn't they still work without
> errors? When you say you replaced "hot-swap boxes" you are talking about
> drives, not SCSI cards, right?
I was talking about the hot-swap frames you put the drive in and connect the
scsi-cable to. I don't know the exact English term for that stuff. It is pure
mechanical stuff. Nevertheless it has to conform to certain electrical
specifications. If those are not fullfilled you cannot run the scsi-bus at full
speed. Of cause the source of your problem could be some other hardware part or
a cable (or software). I had no problem to replace the damaged stuff since we
had just bought the box. After the replacement I have never seen those errors
again.
About the bus speed: AFAIK the speed is negotiated during reset. So if the rate
goes down after the initial setup this is a sign of a real problem.
-Peter
-------------------------------
Even the thought that a ship was waiting to take him back to Earth
did not wipe out the sense of loss he felt at that moment.
-------------------------------
Email: [EMAIL PROTECTED]
Peter Pregler / RISC, University of Linz, Austria
