[Rack] Power / Stallion Replacement

Ben Kochie ben at nerp.net
Fri Sep 16 20:36:18 PDT 2011


I did some power testing in the rack today.

Stallion (2x Xeon 3.4GHz, 3GB ram, ~271 GiB SCSI disk raid) is using about 
300W.  I figure the pony machine is about 150-200 (I need to power it down 
to test).  The rest of the stuff fills out the rest to total the rack 
power at around 650 Watts.

This is contributing to about 450kWh/month in power (~$100)  This means 
that stallion is using about $50/month in power.  The tahoe node machine 
has something like 6G of ram and 6T of disk.  We could easily run stallion 
and pony on it as VMs and cut the rack power in half.  Or we could just 
replace stallion with that machine and still save $25/month in power.

-ben

  "UNIX is user-friendly, it's just picky about its friends."


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