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Adding a 2nd node into Windows 2008 R2 cluster, will validation take shared disks offline?

Posted on 2012-09-11
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Last Modified: 2012-09-14
I will be adding a 2nd node into a Windows 2008 R2 cluster, and I need to present the shared disks from the SAN side first, then when I do validation tests, will those tests bring the shared disks offline?  Our primary node is in production so that would not be good.

Node 1 is out of date in terms of "Windows Updates" never been patch.

Node 2 (not joined to cluster) has been updated recently.

I plan on updating Node 1 prior adding Node 2.
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Question by:tazer92
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by:Krzysztof Pytko
ID: 38389753
No, your shared disk would not be taken offline as validation checks only if all of pre-requirements are met before you will join another node to cluster.

Even, if you start joining new node, resources would not be taken offline as they are working on other node(s).

Regards,
Krzysztof
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by:tazer92
ID: 38391498
So I would choose not the "All" but "Some" test option to just validate the additional node, NOT the cluster, correct?
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Krzysztof Pytko earned 1000 total points
ID: 38393760
No, you can select all options to validate new node. This is only gathering information if new node can be added into existing cluster configuration. In the results, you can review what needs to be fixed before you will be able to add node.

After all, you need to redefine preferred/possible owners for the resources for HA to be able to fully utilize your cluster

PS: Do you plan to use 2 node cluster in Active/Passive or Active/Active mode ?

Krzysztof
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Author Comment

by:tazer92
ID: 38395522
Active/Passive.  As long it does not bring down any cluster disks/sql resources a full validation is fine to run, correct?
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