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When creating an availability set the default number of fault domains is 2. As an example you want to deploy 3 VM's, would you consider using 2 or 3 fault domains? As a requirement 1 VM must be online all the time.

My question: are there any considerations why you would choose 2 fault domains over 3 fault domains? I'm trying to understand why 2 fault domains is the default number, instead of 3? Is it network related, performance?

bruun
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1 Answers1

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there is no reason to pick 2 instead of 3 as 3 is strictly better, but some regions only support 2 fault domains. so you'd have to go with 2 fault domains in those regions.

4c74356b41
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