[rescue] Total corporate madness (

Frank Van Damme frank.vandamme at student.kuleuven.ac.be
Tue Aug 5 17:59:11 CDT 2003

On Tuesday 05 August 2003 19:08, Joshua Snyder wrote:
> <snip>
> On Mon, 4 Aug 2003, Dave McGuire wrote:
> >    As I understand it, serial ATA implements most of the SCSI command
> > set over a high-speed serial link.
> >
> >    ...which makes me wonder...why not just use FC-AL?  It implements the
> > SCSI command set over a high-speed serial link.  Sound familiar? ;)
> > And FC-AL is standardized, chipsets area already out there, it's
> > scalable to VERY high speeds, etc.
> Yeah, your half right about serial ata supporting most of the SCSI command
> set.  In the first gen spec the protocol supports all of the nice SCSI
> style commands but the drives don't have to support them, but all of the
> controllers do.  I think that they did this to ease transition to Sata.
> This way they can put a Sata to Pata bridge chip on to a drive and ship it
> as a Sata drive. The Second gen Sata (the 300Meg/sec spec) requires that
> the drives implement the full command set.

News to me.


> Yeah, Sata is just ATA in name.  I think it's not so much that PeeCee
> weenies think that SCSI is bad just that it is expensive.  Funny that you
> should mention Serial SCSI, did you know that Serial SCSI drives will work
> with a Sata controller.  So if you have your new Serial SCSI drive you
> could plug it into a standard Sata controller and it would work just fine.
> It just slows down to the 150meg/sec speeds... Serial SCSI is starting out
> at 300meg/sec...  for now this isn't that big of a deal seeing how most
> drives can't do over 80meg/sec...

Really?? Surprises me.

> I agree with every thing you say about FC-AL... but the only part that
> isn't very standard is when you a drive in a machine that doesn't have a
> FC-AL backplane... I don't think that they would want everyone using
> t-cards to hookup drives in their systems.  That and they like charging an
> arm and a leg for new FC-AL stuff...

Hm, don't think Dave can trick me in thinking fc-al is actually affordeable...
not for small systems at least.

Frank Van Damme    http://www.openstandaarden.be
~~~~~~~~~~~~~~~    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Je pense, donc je suis breveti."

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