Upgrade SYMC 3.0 to 4.0

Dear All,

We are running SYMC PROTECTION SUITE ENTERPRISE EDITION 3.0. One Server and 30 clients.

I just recieved the license for SYMC PROTECTION SUITE ENTERPRISE EDITION 4.0.

I dont know how to upgrade and where to start. Please guide me the right path.

We have 8GB of DB size for SEPM, we can not shrink it because that tool work for SYMC 12 and above only while we have SYMC V11.

Another important point is that we have SEPM installed on our Primary Domain Controller. So I dont have options for any try, I must proceed safely and should sucessfully upgrade it in one go.

And finally we have SEP client installed on same server where SEPM is installed.

Please guide me.

Thank you.