Instead of performing an in-place upgrade to vCenter Server, you might want to use a different machine for your upgrade.

One common reason for doing this is to upgrade to a 64-bit platform. When you upgrade to vCenter Server on a new machine, you can keep your existing database where it is or move it. You might want to move your database to keep the database local to the vCenter Server machine.

Following is an overview of the process:

Create a backup of the database.

Optionally, move the database by performing one of the following procedures:

Restore the database on the destination machine.

Detach the database from the source machine and attach it to the destination machine.

Copy the SSL folder onto the destination machine.

Run the vCenter Server installer on the destination machine.

This process is described in detail in Upgrading to vCenter Server on a Different Machine and Keeping the Existing Database.