[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:
> 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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