On Mar 2, 2009, at 10:33 PM, Jim Starkey wrote:
If so, how many disks do we bother with? What's the overhead of
dealing with all these boxes/blades? And at what point does the
number of square feet used in the datacenter become more important
than power consumption (and switch ports, etc)?
You might dig up what Hamilton has to say about blades. He argues
that increase density at a relatively high cost, but floor space is
cheapest part of a data center (after servers, cooling
infrastructure, power infrastructure).
just to throw in a random datapoint:
in my past we've had severe problems with racks of blades because a
new datacenter had a strict "no thermic hotspots" policy. the entire
server farm was geared towards minimizing floorspace, but with the new
datacenter that was no longer a concern. we simply couldn't fill the
racks anymore and ended up only filling them to a third to a half,
depending on the blades. what a waste. thermic and power density were
the limiting factors.
cheers,
-k
--
Kay Roepke
Software Engineer, MySQL Enterprise Tools
Sun Microsystems GmbH Sonnenallee 1, DE-85551 Kirchheim-Heimstetten
Geschaeftsfuehrer: Thomas Schroeder, Wolfang Engels, Dr. Roland Boemer
Vorsitz d. Aufs.rat.: Martin Haering HRB MUC 161028
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