This article originally started off life as a record of how I managed to get this working, as a lot of my posts do, but this time it appears I am foiled. Last week, I had 3 vCenter Servers that appeared to be happily talking to each other in Linked Mode sharing a singe Multi-site SSO domain without any real issues. I had a single-pane-of-glass view of all 3 and I could manage them all from the one client.
Getting a SCOM 2007 R2 SCOM agent on TMG is a useful way of monitoring TMG, especially with the SCOM TMG Management Pack – it’s not exactly “out-of-the-box” functionality though, with many sources I’ve read simply stating that it can’t be done. There are some half-working solutions I’ve seen, but nothing that worked for me. The process involves simply opening the correct ports and protocols between the TMG servers and the SCOM management servers, which after a few attempts watching the live logs, I found.