JohnsVCP5
Enthusiast
Enthusiast

Upgrade ESX 3.5 to 4.1

Hi All,

I am planning to upgrade ESX 3.5 to 4.1, so could you please share your thought

Is it possible to upgrade ESX 3.5 to 4.1 directly  ?

What is the best way to upgrade the ESX 3.5 to 4.1 through host update utility/v Center update manger/ vihost/putty

Please share to me if you have any document

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4 Replies
a_p_
Leadership
Leadership

Although VMware supports upgrades from ESX 3.5 to ESX 4.1, it's often easier to reinstall (depending on the size and complexity of your environment).

vSphere 4.1 e.g. requires a 64-bit host for vCenter Server and the migration of the database. You will also need to make sure your hardware/firmware is supported. In addition to this you may have to reinstall anyway, if you plan to upgrade to vSphere 5 later on.

I'd recommend you take a look at the Upgrade Guide for all the requirements.

André

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madhav_VM
Contributor
Contributor

Hi guys, I am a newbie (VCP 5 certified) and doing research to catchup the buts and pieces. here I have a doubt:

Upgrading 3.5 to 4.x and 5.x.

What we exactly upgrade: Is it VM’s, ESXi hosts and/or vCenter Server etc. or the upgrade covers all of them.

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John_Balsillie
Enthusiast
Enthusiast

Hi,

http://pubs.vmware.com/vsphere-51/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-51-upgrade...

It's a big document to read (222 pages), but you need to read it. It will answer all your questions and is the official reference document for this topic.

To summarize, upgrade vCenter first, then hosts, then vms.

Good luck on your virtual journey.

John Balsillie VCI VCP5 VCAP4-DCA VCP4 VCP3 Explorer IT Services Pty Ltd
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Texiwill
Leadership
Leadership

Hello,

Your post has been moved to the VMware ESX 4 forum.

Best regards,
Edward L. Haletky
VMware Communities User Moderator, VMware vExpert 2009, 2010, 2011,2012

Author of the books 'VMWare ESX and ESXi in the Enterprise: Planning Deployment Virtualization Servers', Copyright 2011 Pearson Education. 'VMware vSphere and Virtual Infrastructure Security: Securing the Virtual Environment', Copyright 2009 Pearson Education.
vSphere Upgrade Saga -- Virtualization Security Round Table Podcast

--
Edward L. Haletky
vExpert XII: 2009-2020,
VMTN Community Moderator
vSphere Upgrade Saga: https://www.astroarch.com/blogs
GitHub Repo: https://github.com/Texiwill
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