Author: Brody Kilpatrick | Created: July 19, 2013
I didn’t write the blog post, but I did experience the issue, and it is worth repeating. It seems this is going to affect anyone upgrading from SCOM 2012 to SP1 who uses ACS. The issue is that the schema doesn’t get updated, causing crashes to ADTServer. If you want to full details, you can refer to this blog post http://nocentdocent.wordpress.com/2013/02/12/sysctr-2012-sp1-acs-upgrade-error-scom-sysctr/.
Here are the steps you need to take, assuming you are having the issue. Again, if you are not sure you are having the issue, refer to the post above.
Check the current Schema version of ACS
Make sure it is at version 7. If it is at version 7, continue. If not, do NOT do the rest of the steps.