<div>
Hi,<br />
<br />

<blockquote>
Am I right to upgrade first the vcenter ?
</blockquote>
Absolutely yes, because you got to !<br />
<br />

<blockquote>
Later on I upgrade host by host with my update Manager, is it possible like this ?<br />
Or what do you recommend ?
</blockquote>
Yes if you have VMware Update Manager installed and working, this is your best way to do it nicely.<br />
Just migrate VM on other hosts and put your host-to-be-upgraded in maintenance mode.<br />
<br />
Personnally I would rather reinstall my hosts than upgrade them, but I may be wrong, lets see what other experts have to say about it &nbsp;:-)
</div>


<div>
+1<br />
Windows vCenter should be deprecated soon.. in next version(s).<br />
But the appliance still don't have VUM for now!
</div>


<div>
Update Manager is in the Appliance in vSphere 6.5, 7.0, 8.0 soon!<br />
<br />
future!<br />
<br />
if you follow VMware, you can work at when, with the next big VMware event!!!
</div>


<div>
thank you for the update Andrew :-)
</div>


<div>
Hi all,<br />
thanks for the help and recommendations.<br />
<br />
Since now I will not use the appliance, because of VUM.<br />
When I upgrade my vcenter, shall I upgrade or uninstall and install again ?
</div>


<div>
Upgrade if it works, sometimes upgrades break.<br />
<br />
Make sure you have a full backup or CLONE before you start, not a snapshot.<br />
<br />
Migration from vCenter Server to VCSA appliance is not supported for production at present.
</div>


<div>
<blockquote>
Or take the chance to migrate from Windows vCenter to the vCSA appliance!
</blockquote>
I was meaning do a fresh install of vCSA instead of keeping a Windows vCenter.
</div>


<div>
ok I will wait for vCSA until the VUM is included.
</div>


<div>
<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
I have vSphere running, version 5.5<br />
Now I want to upgrade to the latest version 6.x<br />
<br />
Am I right to upgrade first the vcenter ?<br />
<br />
Later on I upgrade host by host with my update Manager, is it possible like this ?<br />
Or what do you recommend ?
</div>
</div>


Hi Experts,

I have vSphere running, version 5.5
Now I want to upgrade to the latest version 6.x

Am I right to upgrade first the vcenter ?

Later on I upgrade host by host with my update Manager, is it possible like this ?
Or what do you recommend ?

Upgrade ESXi and vcenter

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

VMware

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.