Alan Wen wrote:

>IDE is single stream connection
>SCSI is multiple stream
>what is SATA?
>
>In terms of performance, if I replace my servers with SATA based servers -
>will I take a performance hit - even a little?
>
>Thanks.
>
>
>
>
SCSI needs multi-stream to efficiently handle the multiple HDs that can be
on a single SCSI bus. SATA can only attach to a single HD, so multi-stream
doesn't matter as much.

Yes, I know about Command Queueing; SCSI defines TCQ and SATA defines NCQ,
and both have value in data servers. But, for most desktop/laptop PCs,
xCQ won't show much gain today.

--
Cheers, Bob