The Raritan Blog

Load Shedding – How to Cap Power Consumption

Posted on September 13, 2017 by Scott Fier

Would you like to put a hard power capacity limit on a rack to ensure failover success or put a limit on a set of racks?

Load shedding can be the answer to preventing rack circuit-failover failure.

When dealing with PDUs there are already limits to the load capacity of a single device. It comes in the form of floor PDU circuit breakers. However, the capacity limit of a rack can exceed the limit of a single rack circuit. This is due to the fact that you typically load balance between two or more circuits. In other words, each circuit could be under capacity but when you add the loads together (loss of one circuit/failover) you exceed the capacity of one of those circuits. Under these circumstances, you could lose the whole rack because a failover would not succeed.


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