failover cluster windows 2012 R2

the Cluster goes down if the primary node suddenly powered off ! how to make other one of other nodes take primarily?
Jole AdamAsked:
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Taras ShvedConnect With a Mentor Storage EngineerCommented:
In order to avoid your cluster going  down if the node that holds cluster core resources goes down unexpectedly, you need to properly configure cluster quorum witness.

Here is the explicit guide on how to configure cluster quorum witness:
Failover Cluster Step-by-Step Guide: Configuring the Quorum in a Failover Cluster

Here is a nice article that brings a simple and perfect understanding of failover cluster quorum:
Understand Failover Cluster Quorum
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Paul MacDonaldDirector, Information SystemsCommented:
What sort of quorum configuration are you using?
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
Where is the witness disk? Is it in a CSV?
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