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From: poffen@sj.ate.slb.com (Russ Poffenberger)
Newsgroups: comp.sys.sun
Subject: Re: Format.dat for CDC9720-1230?
Keywords: Hardware
Message-ID: <1990Jul31.030403.13530@rice.edu>
Date: 30 Jul 90 16:53:20 GMT
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X-Sun-Spots-Digest: Volume 9, Issue 286, message 9
X-Refs:  Original: v9n253, Replies: v9n253 v9n258 v9n267 v9n283

In article <10320@brazos.Rice.edu> jms@tardis.tymnet.com (Joe Smith) writes:
>In article <9892@brazos.Rice.edu> xait!mgb@cs.utexas.edu (Michael G. Burner) writes:
>>Isn't the correct name of Xylogic's controller the "7053"?  Why do people
>>insist on dropping the "0"? 
>
>My understanding of these controllers is that only 2 disks can be attached
>to the 753 (xy0 and xy0), but 4 disks can be attached to the 7053
>(xd0-xd3).  Therefore the "0" is significant.

This is incorrect. Both the 753 and 7053 are functionally equivalent, both
supporting up to 4 drives. The difference is... 

753 small (6u) vme size.
7053 large (9u) vme size. Developed primarily for Sun systems.

Russ Poffenberger               DOMAIN: poffen@sj.ate.slb.com
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