Microsoft Exchange 2016 Initial outline
Microsoft has recently released an initial look at Exchange 2016 architecture and Exchange team has written an excellent article which provides an initial (subject to change) view of the architecture.
This architecture is described at:
Exchange Server 2016 Architecture
https://blogs.technet.com/b/exchange/archive/2015/05/05/exchange-server-2016-architecture.aspx
Read my favorites blogs:
Assigning File Share permissions using Power Shell
Disk Read Error when migrating virtual machine from one cluster to another
Designing a backup less Exchange 2010 Architecture