Re: More VAX help needed

From: Bill Gunshannon (bill_at_cs.uofs.edu)
Date: 05/05/05 

Date: 5 May 2005 16:51:06 GMT

In article <1yree.4943$gG.941@news.cpqcorp.net>,
        hoff@hp.nospam (Hoff Hoffman) writes:
> In article <3dpbekF6rifjsU1@individual.net>, bill@cs.uofs.edu (Bill Gunshannon) writes:
>:...When I asked here a few days ago I got the idea that I could
>:connect my storageworks cabinet to a sikngle 6640 without a star
>:coupler. I have had no luck doing it with any combination of CI
>:cable connections. I asked the local VMS guru and he said it won't
>:work without a star coupler. Sooooo...... Can anyone confirm this?
>
> Your local OpenVMS guru is correct.
>
> In addition to the attenuation provided by the SC008 Star Coupler -- as
> was mentioned by other responders -- and assuming you do not simply fry
> something as the signal at the CI receivers will be rather hotter than
> expected; the signal definitely won't match expectations -- each CI
> controller expects to hear itself -- its echo -- as part of its normal
> CI cluster operations.
>

I should have known better than to doubt him. I have yet to have
him be wrong when it comes to VMS.

The good news is that Island Computers has come thru with an SC008
for the cost of shipping and without the rack (I have got plenty of
them) it's going to be cheap enough that I got my boss to spring for
it. Many thanks to David Turner. With luck I will be loading VMS
next week and may be building my first cluster shortly after that.

Thanks to everyone for your help and be prepared for even more
questions when I get to the cluster part. :-)

bill 

-- 
Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
bill@cs.scranton.edu     |  and a sheep voting on what's for dinner.
University of Scranton   |
Scranton, Pennsylvania   |         #include <std.disclaimer.h>

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