Setup guide

TECHNICAL WHITE PAPER / 9
VMware vSphere® 5.0 Upgrade
Best Practices
SimilarproceduresareavailableforMicrosoftSQLServer2008andOracle.WerefertotheMicrosoftorOracle
documentation for more detailed information about this.
Upgrade Scenarios
When all the preliminary precautions have been taken, it is time to upgrade vCenter Server from 4.x to 5.0. We
will discuss three dierent scenarios, but there are more possible scenarios than we will be able to discuss in this
white paper.
Host Agents
It is recommended that you validate that the current configuration meets the vCenter Server requirements. This
can be done manually or by using the Agent Pre-Upgrade Checker, which is provided with the vCenter Server
installation media.
The Agent Pre-Upgrade Checker will investigate each of ESX/ESXi hosts in the environment, and will report
whether or not the agent on the host can be updated. After running the precheck step, a detailed report will
show if any hosts have failed in the Last Checked Status column.