At July 15 Microsoft released a set of documents titled “Technical Documentation for Getting Started with System Center 2012 R2”
This set is very usefull for anyone working with System Center 2012.
The download has 2 documents which are available in both Word and Adobe PDF format:
System Requirements for System Center 2012 R2 is a very comprehensive Word file documenting requirements for hardware, server and client operating system, SQL
Server, Web console, PowerShell, and .NET Framework.
Upgrade Sequencing for System Center 2012 R2 describes the sequence of upgrading System Center 2012 Service Pack 1 (SP1) components to
System Center 2012 R2
Microsoft also published ‘Technical Documentation for System Center 2012 – Virtual Machine Manager’. This document has 757 pages.
Lots and lots of information on common tasks in SC Virtual Machine Manager. This document has been updated in July 2014.
Microsoft now recommends not using AlwaysOn in Microsoft SQL Server. If you use AlwaysOn, and you are running an asynchronous commit mode, the replica of the database can be out of date for a period of time after each commit. This can make it appear as if the database were back in time which might cause loss of customer data,
inadvertent disclosure of information, or possibly elevation of privilege.