It is recommended to enable Datacenter Activation Coordination (DAC) mode for Exchange database availability groups that meet the criteria.
Exchange Best Practices: Datacenter Activation Coordination Mode
Tag: DAGs
Introduction to Exchange Server 2016 Database Availability Groups
Getting started with Exchange Server 2016 high availability by learning the fundamental concepts of database availability groups.
Datacenter Activation Coordination Mode
An overview of Datacenter Activation Coordination Mode and how it prevents split brain conditions in Exchange Server database availability groups.
Are Lagged Database Copies a Waste of Time?
Are lagged database copies in Exchange Server 2013 a useful feature or a waste of time and storage?
PowerShell Tip: List Active Mailbox Database Copies for an Exchange Server Database Availability Group
How to use PowerShell to list details of the active mailbox database copies in an Exchange Server database availability group.
Get-MailboxDatabaseCopyStatus Displays Incorrect Activation Preference Value
In Exchange Server the Get-MailboxDatabaseCopyStatus cmdlet may return the wrong activation preference value for a database copy.
What Does DatabaseCopyActivationDisabledAndMoveNow Do?
What does DatabaseCopyActivationDisabledAndMoveNow do in Exchange Server 2013, and why do we use it during maintenance?
Using a Non-Exchange Server as an Exchange 2013 DAG File Share Witness
When creating an Exchange Server 2013 DAG you may receive an error that the Exchange Trusted Subsystem is not a member of the local Administrators group on specified witness server.
Configuring Database Copies in an Exchange Server 2013 Database Availability Group
How to add a database copy to a Database Availability Group member in Exchange Server 2013.
