If you have web access, these might help ...
http://www.uni-mainz.de/~neuffer/scsi/docs/spi-r12c.txthttp://nssweb.olsy.co.za/pages/scsi.htmhttp://www-micro.deis.unibo.it/~rambaldi/SCSI/SCSI2-05.htmlhttp://www.ejs.is/voruuppl/ast/ami-raid.htmhttp://www.aci.acer.com.tw/acercare/techtalk/1/tk51004.htmhttp://msx.bnc.nl/msx/docs/s2r10c04.txt
Graham Heggie wrote:
>
> Hi DC'ers
> I am about to draft an LVDS SCSI Backplane; having
> taken on board several papers on Transmission Line theory, Controlled
> Impedance PCB's and the like, my understanding is that I am not allowed
> to stuff a pile of RAID Disks on a Backplane at a 2" spacing - got to
> make 10" or so of track between each. I believe the relevant problem is
> termed 'stub clustering'.
> Can anyone point me at further works to throw some light on this
> subject, the relationship between stub lengths and stub spacing? My gut
> feeling, (after having seen some products currently shipping) is that
> one could do a 'dirty' implementation and accept a lower useable cable
> length outside the cabinet ... down to say, 3 metres from 10 (yes I know
> it's in metric ... us poor Brits got stuck between Imperial and Metric
> about 15 years ago and have been working with both measurement systems
> ever since.)
>
> Hope someone can help ... Regards - G/.
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