Subject: Re: scsi id trouble
To: Johan A. van Zanten <johan@ewranglers.com>
From: Paul NCC/CS <pts@bom.gov.au>
List: port-sparc
Date: 08/31/2002 21:04:56
Hi folks,
I went and had dinner, and now a heap of solutions.
Thanks alot! Much appreciated,
Paul.




"Johan A. van Zanten" wrote:

> ---In message <3D708FB6.E48B6B7C@bom.gov.au>
>
> >I have a seagate ST34572WC disk with an "SCA"
> >adapter, which I haven't seen before but it looks
> >like it provides the power to the disk as well as the
> >scsi connection, anyway,
>
> Yes, it provides power to the disk. The SCA spec/interface has some other
> cool aspects, such as being hot-swapable without fear of toastedness. And
> it also typically determines the SCSI ID.
>
> See this page:
>
> http://docs.sun.com/?p=/doc/801-6396-11/6i0pbk27d&a=view
>
> ...for a description of the internal storage specs of a SPARC-5.
>
>  I do not believe there is a way to circumvent the preset SCSI ID in the
> SPARC-5. (Or most Sun SCA configs) You'll probably have to change at least
> some of the IDs of the external devices.  But do keep in mind before you
> start tweaking IDs that BSD kernels assign the drive identifiers
> (E.g. "sd0") based order of discovery, and that order is very dependent
> upon the drives' SCSI IDs.
>
> Johan van Zanten                   \ "And so once again we find that the evil
> System Wrangler                     \  of the past seeps into the present,
> Tumbleweed Electron Wranglers, Inc.  \  like salad dressing through
>                                       \  cheap waxed paper." - The Tick

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