upgrade to vCenter and related methods

Currently, I am planning on upgrading my vCenter 4.1. I am currently running on Windows 2008R2 4.0u1. I have 5 vCenters that are in bound mode. What I have to do all the updates in a single session or can they be carried out for a month or two?

Yes, you can link 4.0 4.1.

http://communities.VMware.com/thread/280846

Tags: VMware

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    Here are a couple of things which may help

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    Best regards

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    -Update

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    VMware KB: Best practice to install or upgrade to VMware ESXi 6.0

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    THX

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