On Sun, 19 May 2002, Rick Moen wrote:

> Quoting Ian C. Sison ([EMAIL PROTECTED]):
>
> > ...faster access (UDMA 133)....
>
> A mirage and an irrelevancy.  That's the theoretical maximum transfer
> rate of the bus, which can never be approached even in ideal cases,
> because data flow is limited to the physical read speed of hard drives,

An issue which is just as relevant on SCSI based solutions

> and ATA cannot draw data from more than one drive at a time on an ATA
> channel.  I hear of some contrived test situations where it's starting
> to be possible to saturate ATA/66, but just barely.

Most Hardware IDE RAID controllers recommend one disk per ATA channel
anyway, so it's a non-issue.



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