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New-DatabaseAvailabilityGroup

Use the New-DatabaseAvailabilityGroup cmdlet to create a database availability group (DAG). Exchange PowerShell reference

From the Exchange PowerShell reference 11 parameters Its page in the reference

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Parameters

11 in the Exchange PowerShell reference
-NameThe Name parameter specifies a unique name for the new DAG of up to 15 characters.
-ActivityStateThis parameter is reserved for internal Microsoft use.
-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.
-DagConfigurationThis parameter is reserved for internal Microsoft use.
-DatabaseAvailabilityGroupIpAddressesThe DatabaseAvailabilityGroupIpAddresses parameter specifies one or more static IPv4 addresses to the DAG when a Mailbox server is added to a DAG.
-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.
-FileSystemThe FileSystem parameter specifies the file system that's used for the DAG.
-ThirdPartyReplicationThe ThirdPartyReplication parameter specifies to configure and enable a DAG to use non-Microsoft replication that leverages the Exchange Third Party Replication API instead of the built-in continuous…
-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.
-WitnessDirectoryThe WitnessDirectory parameter specifies the name of the directory on the witness server used to store file share witness data.
-WitnessServerThe WitnessServer parameter specifies the name of a server used as a quorum witness when the DAG contains an even number of members.