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PowerEdge M1000e Blade Chassis Redundant Power Supplies
3+1 has one redundant power supply. Does this mean that if any one of the 3 power supplies go out that the one redundant power supply will replace it? 3+3 had 3 redundant power supplies. Does the same variable support apply or is each redundant power supply designed to support a specific supply?
Do I need 4 power supplies or 6 power supplies to have redundant power for my blade servers? Thanks in advance!
Do I need 4 power supplies or 6 power supplies to have redundant power for my blade servers? Thanks in advance!
Kong Yang
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November 18th, 2010 09:00
Each PSU can deliver 2360W of power to the system at 12V DC. Three PSUs can provide enough power for a fully loaded PowerEdge M1000e system.
(3+1) provides power supply redundancy so if one PSU goes out, you are covered by the 1 standy.
(3+3) provides AC redundancy and in the default Power Redundancy Mode, all 6 PSUs are active and the load is shared across all 6. 3 PSUs are connected to one AC grid and the other 3 PSUs are connected to another AC grid so the loss of any 3 PSUs will not affect the operation and performance of any of the blade servers.
So if you have a fully loaded M1000e, 6 PSUs would provide power redundancy for your blade servers.
Hope this answers your question. There is a wiki page on the Dell M1000e Blade Power Distribution Systems- http://www.delltechcenter.com/page/Dell+M1000e+Blade+Power+Distribution+Systems
and attached on that wiki page is the full PG engineering technical white paper.