KMS server redundancy and migration


I've got physical KMS server running on Windows Server 2012, what if the server is failed and cannot be brought up during the software updates ? does my whole Windows OS becoming inactive / not activated ?

Is there any way to provide some sort of redundancy for the KMS server ?

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Senior IT System EngineerIT ProfessionalAsked:
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David Johnson, CD, MVPOwnerCommented:
The way KMS activation works is that every 180 days the client must authenticate with the server to remain activated. By default it will try every 7 days.. You can have several kms servers and they don't have to be on 'SERVER' s

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Senior IT System EngineerIT ProfessionalAuthor Commented:
ok, so in this case I only have one physical server running as KMS, can I set one more on the existing WSUS VM ?

if for some reason the KMS primary server is down for more than 7 days, what happened to the Tier-1 business servers like Exchange, SQL and SharePoint servers OS (Win 2008 R2 and 2012 R2) ?
David Johnson, CD, MVPOwnerCommented:
Notrhing will happen for 170+ days they will remain activated. A client machine can be a kms server  About all you need to do is change the AD/DNS records.
Senior IT System EngineerIT ProfessionalAuthor Commented:
Ah that sounds simple. So no need to provide high redundancy on this KMS server.

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