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FT overhead

Posted on 2010-08-12
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Last Modified: 2012-08-14
When I configure fault tolerance for a virtual machine, does that double the required overhead since there is a second machine running?  Will I see two duplicate machines in vcenter?
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Question by:ENTPF
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jfields71 earned 1600 total points
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Yes it doubles the overhead.  It is a whole VM running on another ESX host with the same memory and processor overhead.  
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by:jfields71
jfields71 earned 1600 total points
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You don't see the FT clone in vCenter.  FT handles that for you.  You just manage the main VM and vCenter handles the FT clone.  It will even create a new FT clone if something happens to the original.  
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by:bgoering
bgoering earned 400 total points
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I will note that it does not double the disk storage overhead - the same vmdk files are used by the FT machine as the original.

Good Luck
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