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public:hardware:power [2013/01/16 19:27]
jonmills created
public:hardware:power [2021/01/02 06:10] (current)
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-====== Power Config Options ====== +Please refer to the [[:public:hardware:rack:start | IBM Rack Configuration]] page...
- +
-  * 120v 1 phase @ 20 AMP, requires 6 PDUs +
-  * 208v 1 phase @ 30 AMP, requires 2 PDUs +
-  * 208v 3 phase @ 60 AMP, requires 1 PDU +
- +
-The electrical service needs to match the PDU.  3 Phase @ 60 AMP is convenient, since most datacenters provide it, it is enough to run the entire rack, and only requires a single PDU.  However, it is more than what an ExoGENI rack needs.  If you wish to only run 30 AMP circuits, you can do that. +
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- +
-===== PDU Ratings ===== +
-  * Don't exceed 80% of the rating of a PDU +
-  * A 20 AMP PDU, don't put more then 16AMP max load +
-  * A 30 AMP don't go past 24 +
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- +
-===== MATH ===== +
-  * watts divided by volts = amps +
-    * e.ga 500W worker node at 120V will take 4.2 AMPs, at 208v it will take 2.4 amps+
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