[geeks] New Server Pictures

Joshua Boyd jdboyd at jdboyd.net
Tue Jun 8 13:39:47 CDT 2004


On Tue, Jun 08, 2004 at 12:27:36PM -0600, Dan Duncan wrote:
> On Tue, 8 Jun 2004, Joshua Boyd wrote:
> > Didn't SCSI pretty much win out in the end anyway though?
> 
> How so?  It costs far more than IDE, even though IDE is an
> inferior technology.  My Tivo and Xbox are IDE, not SCSI.
> A number of people on this list use SCSI to IDE converters
> so they can use cheap IDE drives on SCSI systems.

Yes, but ATAPI (which is what CD-ROMS and DVD Burners speak) is purely
SCSI over IDE.  Increasing for several years now IDE harddrives spoke
more and more of the SCSI command set.  Thus, those SCSI->IDE bridge
chips really don't require a lot of complicated logic to translate the
protocols, nor do they need and indepth knowledge of the devices they
are connected to since all they have to do is route SCSI.

And finally, with SATA being the new path forward, SCSI appears to have
definatively won, since SATA specifies a SCSI subset over a serial bus.
In theory, you will be able to hook SATA devices up to Serial SCSI
controllers and it will just work (though, reality may be trickier when
serial scsi controllers make it into the mainstream).  



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