>On Sun, Mar 14, 2004 at 02:09:57PM -0600, Donald Lee wrote:
>> >On Sat, Mar 13, 2004 at 01:49:38PM -0600, Bill Studenmund replied:
>> >> 
>> >> I *did* put both drives on the same ribbon cable, with one master and
>> >> the other slave.  I've been abusing all three drives for about 40 minutes
>> >> now, and have yet to see a single "lost interrupt" message in the
>> >> log.
>> >
>> >Could you try the other cable, just for completeness?
>> 
>> The cable I have been using up to this
>> time was the ribbon cable that came with the Sonnet card.  It's a "normal"
>> grey ribbon cable with 3 connectors on it.
>> 
>> When I bought the 200G drive, I also bought a cable It's an 18", Belkin
>> "round" cable.  They put the wires in a cute rubber tube with little
>> "flares" on the connectors.)  I'll call this the yellow cable.
>> 3 connectors.
>> 
>> I tried the yellow cable with both drives on it.
>> 
>> I tried it on the "near" channel.  (the one that I had been using with
>> the single drive.  It's the one nearest to the front of the machine.)
>> I also tried it on the "far" channel.  (nearer the back of the machine)
>> 
>> Both attempts had both drives connected master/slave on the yellow cable.
>> For each, I heaped some abuse on it, and it performed flawlessly,
>> with one exception.
>> 
>> When I put the drives on the "back" channel, it worked fine under heavy load
>> for about 30 minutes.  When I went to shut down, I got a single "lost interrupt
>> message.  The machine seemed to hang there, and I had to power it down.
>> The "lost interrupt" I/O was apparently very late in the shutdown
>> process, possibly when unmounting the drives, because the message is
>> not in the syslog, and when I rebooted (power cycled) it did a full
>> fsck of the disks.
>> 
>> I'm back on the "front" channel, on the grey ribbon cable.  Life is good,
>> and my new disk seems to be working, and getting good performance.
>
>Is your adapter manufacture by promise, or is it some other brand using
>the same chipset ?

Manufacturer of the card is Sonnet.  It's a "Tempo ATA/133".

>I've got troubles with a bad implementation of a chipset once (a HPT on
>a motherboard , FWIW). It had lots of CRC errors and other problems on the
>motherbord. The same drives, same cables connected to an add-on HPT
>adapter using the exact same chipset (identical in PCI registers dumps and
>on-chip label) worked without a problem.
>
>The Ultra/133 I have here is from promise.

I wonder if it's the same card.  Lots of these are "OEM"ed.

-dgl-