What is DNS important?

Hello

I'm following book of the Scott Lowe "Mastering VMware" to study this subject VMware Sphere. Nevertheless, I have a question about the importance of DNS it should be noted on the book. Is it really necessary to include a DNS to properly operate the sphere of VMware? What happens if the DNS fails? Is that mean I have to create yet another DNS machine and a replication of it to provide fault tolerance? (perhaps virtualized two of them)...

Thanks in advance,

Jose.

DNS is not necessary more for HA to operate, making it easier for vCenter survive failures large-scale)

However, it is always necessary (according to the vCenter docs you saw) for other operations and Setup.

You need DNS.  End of the story.

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