[SunRescue] What exactly is a Sun 4/25 ?

[Ken Hansen]

Isn't SCSI a parallel interface [8|16|32] bits wide?

Isn't TCP/IP a serial interface (not RS-232, but 1 bit wide transmission)?

So a 5 MB/S SCSI interface at 8 bits wide (SCSI-I) wouldn't that
yield a *theoretical* 40 MB/S transfer speed?

Why you would do this, I have no idea...

Ken

Gregory Leblanc wrote:

> > -----Original Message-----
> > From: Mike Nicewonger [mailto:twmaster at earthlink.net]
> > Sent: Friday, April 28, 2000 10:44 AM
> > To: rescue at sunhelp.org
> > Subject: Re: [SunRescue] What exactly is a Sun 4/25 ?
> >
> >
> > > Ya know, I'm pretty sure that Linux has some drivers to run
> > TCP/IP over
> > > SCSI...  I wonder if you could cluster that way.  It
> > wouldn't be too fast,
> > > and most of my machines have only 1 SCSI port, so it would
> > be hard to
> > chain
> > > more than 2 of them together.  Hmm....
> >
> > Actually the SCSI TCP/IP connection would be nice and fast,
> > would work great
> > for a cluster, the box <elc> wouldn't know what to do with
> > it. George Adkins
> > seems to know a lot about the subject of TPC/IP over SCSI.
>
> How do you figure?  SCSI bus on an ELC is probably 5MB/sec, not even as fast
> as 100Mbit ethernet, although quite a bit faster than the onboard 10Mbit.  I
> don't know what kind of latency you'd have over the SCSI bus.
>         Greg
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