Re: SCSI vs S-ATA

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From: Jerry Dubuke (jdubuke_at_not.gpdservices.com)
Date: 08/03/04 

Date: Tue, 3 Aug 2004 11:42:25 -0400

I have asked the following question of various resellers of hard disks ans
NAS solutions, and gotten cryptic answers at best...
So, the question is:
How does SATA perform relative to SCSI in a multi-user environment?
I am under the impression that SATA is still a "parallel" process, whereby
only one request can be handled at a time, vs SCSI, which can handle
multiple simultaneous requests.
Is this still a true statement? If so, why would anyone want SATA in a
server, (or a NAS for that matter)?
Along the same vein, does SATA use the main CPU for access the same was that
IDE does, or does the "controller" have on-board dedicated CPU like a SCSI
card does?
Am I missing something?
Thx,
Jerry

"NickC" <me@somewhere.com> wrote in message
news:OQNVhXWeEHA.2812@tk2msftngp13.phx.gbl...
> Proposed 10 user SBS network:
>
> Anyone know if the new SATA drives are reliable enough to use instead of
> SCSI (ultra 320)?
>
> I know that traditionally SCSI has always been prefered for the extra
> reliability but is that still the case? If SATA is just as reliable I
might
> try a pair of them for the same cost asone SCSI.
>
> Cheers,
> Nick
>
>

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