With regards to your message at 04:27 PM 11/7/00, Andrei A. Dergatchev.
Where you stated:
>I'm planning to add a new (big, 50 or 73GB) hard-drive to my SX and
>I was wondering are there any issues regarding of number of pins.
>Being SCSI beginner, I think that a 80 pin drive plus 80-to-68 card
>a 68 pin drive of the same quality (and usable under AlphaLinux, I might
>add:-) ) - could someone advise me on this please ? Or maybe I'm wrong
>and I have to get a 68 pin's one ?
80 pin is called SCA for Single Connector Adaptor.
It was designed for hot-swap disks, where all the connections needed for
data, ground and _power_ are on one connector designed for a hot-plug
application. Typically they mate to opposite gender connectors on a circuit
board backplane, rather than with cables.
In terms of performance, cost, and other important areas the 68 pin "wide"
connector and the 80 pin SCA are identical.
Using extra adaptors between a drive and cable does not strike me as advisable.
With our best regards,
Maurice W. Hilarius Telephone: 01-780-456-9771
Hard Data Ltd. FAX: 01-780-456-9772
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Edmonton, AB, Canada http://www.harddata.com/
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