DAG

Exchange 2007 reaches end of life on April 11. The importance of this version cannot be overstated, especially in terms of its contribution to Exchange Online and Office 365. But it is time to let go and move to a more modern platform.

Microsoft has fixed the IIS crash that caused problems for Windows 2016 DAG members in Exchange 2016 CU4. Exchange 2013 also gets its quarterly overhaul of fixes in CU15.

Exchange 2016 CU3 is the first version to support Windows 2016 as a deployment platform. At least, it was. Microsoft has discovered a problem lurking deep in the bowels of Windows 2016 that causes Exchange 2016 CU3 to crash when deployed in a database availability group (DAG). IIS is tagged as the problem child, but it’s really not.

Moving a large amount of data? Learn how to use NetApp SnapMirror to seed a database in an Exchange 2010 DAG.

Manually seeding a database isn’t common, but it's good in a pinch. Learn to manually seed an Exchange 2010 DAG database in this tutorial.