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make sure that the underlying ESX and VC are upto ESX 3.5 U3 and VC is 2.5U3 before you update VDM to View, the update will go smoothly so long as you have read the documents and made sure all the pre-reqs are met.
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Tom Howarth
VMware Communities User Moderator
Blog: www.planetvm.net
Tom Howarth VCP / VCAP / vExpert
VMware Communities User Moderator
Blog: http://www.planetvm.net
Contributing author on VMware vSphere and Virtual Infrastructure Security: Securing ESX and the Virtual Environment
Contributing author on VCP VMware Certified Professional on VSphere 4 Study Guide: Exam VCP-410
