RE: HMC Cost?

OK, to further my questions on HMCs:

What sort of longevity is to be expected from a HMC?  Here's our situation:

 In a few months we'll have 3 520s (one is currently an 800 and will become
a 520 soon) with 2 520s in one building and 1 520 in another building 1/2
mile distant.  We are considering getting into the HMC world (with no
need/plans for LPAR or CUOD) and putting one HMC in each location cabled so
either HMC can manage each of the 3 machines in both locations (we have
plenty of fiber avail. that will facilitate private/open networks for the
HMC/system connections).   For the one machine that currently needs console
access in both locations we have a twinax/switchbox setup, but don't want
to have to duplicate this for the box that's moving out to the 2nd
location, we are also interested in moving away from the current twinax
switchbox setup.

Our upgrade cycle for the 3 machines is roughly every 3 years and we have
historically leased all 3 machines.  Two of the three get replaced at once
and the third gets replaced the following year.  In looking at the HMCs,
we're trying to see how they would fit into the replacement cycle we're
currently on with iSeries servers.  I'm trying to get a feel for how this
would work best... is it reasonable to expect 3 years from a HMC version?


Also, another question that comes to mind is how difficult/disruptive it is
to change a current iSeries over from a twinax console to HMC?

When TCP/IP is ended on the server, it maintains full TCP/IP connectivity
to the private/open connections to the HMC, correct?

Any thoughts are appreciated, i'm picking through the HMC section of an
LPAR redbook... it's the best resource i've read so far, but have alot to
learn on the HMC.  I need to go visit someone who's running one...




                                                                       
             "Jeff Kennedy"                                            
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Ours cost about $6100 including the color monitor, doesn't include the
rack. We have rack mounted 520 with the HMC, 520, Xserver and 5081 in
it.


Jeffry A. Kennedy
Certco,Inc
jkennedy@xxxxxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
ChadB@xxxxxxxxxxxxxxxxxxxx
Sent: Wednesday, April 05, 2006 10:46 AM
To: Midrange Systems Technical Discussion
Subject: HMC Cost?

Does anyone know an approximate cost for a HMC setup for a smaller 520+
system?
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