Best practise to upgrade Windows OS

[mltshi]

Hi All,

I'm looking at upgrading vSphere Essentials Plus 4.1 to 5.5 in the near future. The vCenter Server, and DB, is currently hosted on Windows 2003 Server OS on a physical server. I'll need to upgrade this server to Win2008 R2 before I can upgrade vCenter to 5.5. What is the preferred process for performing this upgrade task using the same physical server?

Thanks,

Andrew

[john23]

You have to upgrade in this sequence:

- Upgrade host operating system of virtual center.

- Upgrade DB (if planning to upgrade)

- Upgrade VC, and check ODBC connectivity.

- Then upgrade the ESX.

you will find the best practices for vSphere upgrade.

-A

[abhilashhb · Accepted solution]

Here's a link that will help you with that.

Upgrading vCenter Server's Operating System - Punching Clouds

[mltshi]

Thanks for the feedback and the link guys. Looks like an in place upgrade, Win2003 -> Win2008 R2, is possible which is great news.

Thanks,

Andrew