Re: Twinax Question (Don't laugh too loud)

[mcrump@xxxxxxxxxxxxxx]

It's one of 'it depends' questions.

Re: local controllers you should have essentially two flavors.  One flavor
is like the 9720 which has a 4 port breakout box and will attach and
support 28.  The other flavor is like the 2722, 6050, or 6140 which has a 8
port breakout box and will attach 56 but only support 40.  On the new E
models I believe the MFIOP card will only support those similar to the 9720
(4 port breakout, attach and support 28).

The 5394 will only support a max of 28.  The 5494 can support either 28 or
56.  To support 56 you have to buy the twinax expansion card (feature code
1200 US list price $3500).

I don't know about the Decision Data specifically but I would doubt that
OS/400 would restrict you.  If it did I would believe that D.D. would have
a workable circumvention (ie: define multiple RWS's for the same
controller).




Tim Hamm <tmhamm@yahoo.com> on 07/28/98 08:30:43 AM

Please respond to MIDRANGE-L@midrange.com

To:   MIDRANGE-L@midrange.com
cc:    (bcc: Mike Crump/IS/Ball-Foster)
Subject:  Twinax Question (Don't laugh too loud)




O.K.,  I have been getting conflicting information on this question
for the past couple months, and I'm hoping the vast knowledge of this
list can provide me with some sort of consensus.  The question is:

How many devices can be active concurrently on a local twinax
controller?  How many on a remote controller (as far as OS/400 is
concerned)?

I recall only being able to have around 40 devices active on a local
twinax controller, even though you could physically attach up to 56.
I heard a rumor that this had changed sometime since V3R2, and now you
can attach AND HAVE ACTIVE a full 56.  Is this true?  Does this also
work with remote controllers?

A related question:  Decision Data is marketing a 5494-emulation
remote controller that they say will support a total of 224 twinax
devices.  Does anyone know if OS/400 would restrict this in some way?

Thanks for the time,

Tim Hamm
MBA Information Systems
tmhamm@yahoo.com


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