The 2007 MVP Summit in Redmond/Seattle was awesome. Lots of great content. Here is what I learned:
1) SQL 2005 can cluster with Standard Edition (ok I knew that). What I learned was that you can have multiple SQL instances (that run on 2 nodes only) within any size cluster. So, if you have a 4 node cluster you can run 2-3 instances with multiple copies of SQL 2005 Standard Edition. Cool! Think of the savings.
2) Exchange 2007 Clustering is way cool and different, but in a good way.
3) Windows Server 2003 can support GPT – http://support.microsoft.com/kb/919117 – and volumes larger then 2 TB in size!!! Rumor has it Longhorn will also allow this.
4) Windows Server 2003 SP2 did not add anything compelling for a cluster. Check with your hardware vendor before deploying to ensure full support.
5) Windows 2000/2003 clusters can restart resources after a set amount of time – http://support.microsoft.com/kb/228923. This KB is for 2000 and 2003, I know it’s old but I just found out about this feature (I was not the only Clustering MVP that had no idea).
6) Windows Server Codename “Longhorn” Failover Clustering will be very different, but again in a very good way. Come to my Tech Ed 2007 session in Orlando, Florida to learn a lot more!