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From: | |
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Date: | Thu, 28 Oct 1999 12:19:21 -0700 |
Content-Type: | text/plain |
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> the data will most likely only be passed as quickly
> as the slowest device on
> the cable can handle it. You may potentially be
> slowing down the hard drive
> a great deal if you Master/Slave it to the CD-ROM
> drive...
> ...
> "
>
> Can somebody explain why, when the HD and the CD are
> connected in the same
> cable, the HD will follow the CD speed, even when
> the CD is idle?
This used to be a problem with the first few
versions of EIDE controllers. It dealt with the
controller only being able to support a single PIO
mode per channel, so if you had a hard drive PIO mode
4 and a CDROM PIO mode 1, the channel was restricted
to PIO mode 1. This limitation no longer exists and
the two devices act independantly of each others PIO
modes. TTYL
=====
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