do you recommend configuring virtual center with the esx's dns names or straight ip address?
Allways use the FQDN of your ESX host. Make sure your DNS is working properly and configure DNS redundancy.
If you want to utilize VMware HA, DNS (and using FQDN) is a requirement
-Arnim van Lieshout
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You may also want to check out VMware HA Failure Got You Down? for a solution that worked for me.
Edward L. Haletky
VMware Communities User Moderator, VMware vExpert 2009
Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.
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