"Important Considerations"
1. You must upgrade the Symantec Endpoint Protection Manager (that is, the server) before you upgrade the client
2. The SEP manager Service must be stopped on all Sep manager servers before it can cause serious consequences. (as I mentioned in the old document, the installer will also help you to stop it when you upgrade.) But recently Google found that a foreigner did not stop service on the installation, in the test environment, all normal, but to the production environment has failed, the result of a great effort to repair, so strongly recommend you strictly follow the recommended steps to do.
"Upgrade Process"
The first step: backing Up the database
Note: You must use the same Sep Manager version to restore this database. Best Practice Reference Document: http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007082112135948
1) Start→programs→symantec Endpoint Protection manager→database back up and Restore.
2) point back up Large icon
3) Press Yes to start backup
The backup takes about 5-15 minutes, depending on how big your db is now.
After the backup is over, you will be notified of the location of the backup, usually
\program Files\symantec\symantec Endpoint Protection Manager\data\backup\.
If you have a lot of backup upgrades over the years, you can go and delete some old backups.
Step two: Close the synchronization between the site (replication)
We do not have multiple site or multiple SEP servers, so this step is saved.
Specific steps (because we do not need to do, do not bother to translate, directly copied over)
1. Log on to the Symantec Endpoint Protection Manager Console.
2. On the Servers tab, in the left pane, expand Local Site, and then expand Replication.
3. For each site this is listed under Replication, right-click the site, and then click Delete.
4. In the Delete Partner prompt, click Yes.
5. Log off of the console, and repeat this procedure in all sites that replicate data.