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SubjectRe: DE and hot-swap disk caddies

Hi Chuck,

You have me laughing and I love it, your signature!

What you are referring to is an bridge to a backplane, here is the voodoo
electronics. If you check, I suspect that each drive is master mode, and
the tailgate generates the ID; where as the interface is more or less
SCA-SCSI. SCA is an interface w/ all the tristating buffers intergrated.

Cheers,

Andre Hedrick
LAD Storage Consulting Group


On Wed, 27 Mar 2002, Chuck Campbell wrote:

> On Wed, Mar 27, 2002 at 04:27:18PM -0800, Andre Hedrick wrote:
> >
> > It requires more than what the average joe OS can do on its own.
> >
> Not to be a nay-sayer, or even argue, I jsut wonder what the present
> hot swappable IDE raid devices are doing?
>
> Are these built with all the necessary electronics, or are they just
> rolling the dice?
>
> I realise the OS only knows about the scsi interface to these, but they
> would appear to provide hot swappable IDE disks, albeit, using a scsi
> communication to the controller.
>
> -chuck
>
> --
> ACCEL Services, Inc.| Specialists in Gravity, Magnetics | 1(713)993-0671 ph.
> 1900 West Loop S. | and Integrated Interpretation | 1(713)993-0608 fax
> Suite 900 | |
> Houston, TX, 77027 | Chuck Campbell | campbell@neosoft.com
> | President & Senior Geoscientist |
>

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