DAG Quorum and the File Share Witness Quorum is the voting process that the cluster uses to determine whether the DAG should remain online or go offline. If the DAG goes offline all of the databases in the DAG are…
Exchange File mode replication vs Block mode replication Database replication occurs between DAG members using two methods: (1). File mode replication (2). Block mode replication (1). File mode replication: During file mode replication, each transaction log files generated by the…
Database Availability Group (DAG) Concepts DAG Members The Mailbox servers that are members of the DAG and can host database copies within the DAG. A DAG can have up to 16 members and a File Share Witness. Quorum The process…
DAG Management PowerShell Commands Get DAG Status Get-DatabaseAvailabilityGroup <dag name> -Status | fl StartDagServerMaintenance.ps1 script to put the DAG member in maintenance mode .\StartDagServerMaintenance.ps1 -serverName <server name> StopDagServerMaintenance.ps1 script to take the DAG member out of maintenance mode .\StopDagServerMaintenance.ps1 -serverName…