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Adding third node

Posted on 2011-02-22
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Last Modified: 2012-05-11
I currently have a two node exchange 2010 cluster and I file share witness all in different data centers, both hosts run server 2008 R2 are apart of the same dag with fail-over work fine.  I need to add a third node to the dag which also comes from a different data center but I'm having a few issues.  One by adding the node I will violate the file share majority rules with an even number, three hosts and one witness.  I considered removing the witness but this doesn't work, it Exchange 2010 will not allow it.  I've considered adding a second file share witness but I don't believe that will work as the second file share witness only acts as a backup to the current active file share witness.

I have other thoughts, but apparently I may do better asking someone else.  If you can please help!
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Question by:Puke Foo
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by:DezzyMelb
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I'd suggest that you make one of your exchange servers the file share witness at your primary datacentre.
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by:Puke Foo
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how would that hep?
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Akhater earned 500 total points
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You don't need to worry about this, this is managed automatically by exchange. You configure a share witness but exchange will decide to use it or not depending on the number of nodes in your DAG. when you have a odd number of nodes the FSW will be ignored automatically
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by:Puke Foo
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I figured this out a while back, but he's correct this is handled by exchange and windows clustering.
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