Datacenter Activation Coordination (DAC) mode - Part 1
Tariq is a senior Microsoft Systems Engineer. He implemented several Microsoft infrastructure projects for various major companies. He is now focusing on Active Directory and Exchange server administration and implementation.
Today we discuss Datacenter Activation Coordination, and see how this is used to prevent mounting a mailbox database that is currently active and mounted at another Database Availability Group (DAG) member. In other words, preventing the split brain syndrome.