About the power of the UCS

Hello

Just a quick to double check that I have this right... I have a UCS chassis with 2 servers x B200 & 2 x 2500W power supplies. Also runs firmware 1.4.3m

1. for the use of only 2 power supplies do they like especially the slot machines? That is to say 1 & 3

2. what would be the best power policy to use for the distinct power sources to the PSU? Non-redunant?

3. what would be the best policy of power to use the same source of energy will two power supplies? N + 1?

Also there will be more blades added in the future... it will make a difference in what should I choose?

See you soon

Hello!

The placement of the UPE 2 does not matter that the system will adapt to where you place them.

As for the policy of power, he only dictates how the chassis will use power supplies, there:

Non-redunant - chassis will use the two power supply at their full power, allowing you to use more blades

Is not used and registered to a N + 1 backup and a power supply (so in your configuration you can only use 1 power supply of blades)

Grid - longer than redundant N + 1.

(source)

For this reason the choice of political power is unrelated to what sources they are related to, but how much redundancy you want.  Thus the safest choice would be N + 1 (or grid) with each power supply switches to different power.  The most cost-effective method is Non-redunant with all power supplies going to the same source, but if one of them goes down you lose blades (see below).

Please note that you need 3 power supplies to power a full server.

If you use the Non-redunant power policy and one of the matrix of power supplies, blades will be put off until there is enough to meet the demand for energy.  So, it is much safer to use the N + 1.  If you add a new blade for the system and there is not enough power, you will just get an error and the blade will not come.

Who answers your questions?

Tags: Cisco DataCenter

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