COMMAND EVERYTHING.
Enables replication of a virtual machine.
Microsoft Hyper-V reference: Enables replication of a virtual machine. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Use an account with the target resource permissions documented for Enable-VMReplication. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Windows / Hyper-V · Windows Server 2025 documentation; feature/module prerequisites apply
-AllowedPrimaryServer- When you use the AsReplica parameter to specify a virtual machine as a replica virtual machine, this parameter determines which primary servers can send replication to the replica virtual machine. Replication is accepted only from the server specified in the chosen authentication entry, or any other authentication entry that has the same trust group.
-AsJob- Runs the cmdlet as a background job.
-AsReplica- Specifies that the virtual machine is a replica virtual machine, enabling it to be used as the source for the initial replication of the primary virtual machine.
-AuthenticationType (required)- Specifies the authentication type to use for virtual machine replication, either Kerberos or Certificate. The specified Replica server must support the chosen authentication type. Run the Get-VMReplicationServer cmdlet to verify the authentication configured for the specified Replica server, or contact the administrator of the specified Replica server.
-AutoResynchronizeEnabled- Enables replicating virtual machines that require resynchronization to be resynchronized automatically. (For example, a virtual machine requires resynchronization if the primary server shuts down abruptly). Resynchronization requires significant storage and processing resources. We recommended scheduling resynchronization during off-peak hours to reduce the impact to the host and other virtual machines running on the host. Use the AutoResynchronizeIntervalStart and AutoResynchronizeIntervalEnd parameters to specify an off-peak time to start the automatic resynchronization.
-AutoResynchronizeIntervalEnd- Specifies the end of the time period in which you want resynchronization to start automatically.
-AutoResynchronizeIntervalStart- Specifies the start of the time period in which you want resynchronization to start automatically.
-BypassProxyServer- Specifies whether to bypass a proxy server while replicating data to the Replica server.
-CertificateThumbprint- Specifies the certificate to use for mutual authentication of the replication data. This parameter is required only when "Certificate" is specified as the type of authentication. Specify the thumbprint of a valid computer certificate from the Personal store. The certificate must have all of the following properties to be valid: - It must not be expired. - It must include both client and server authentication extensions for extended key usage (EKU), and an associated private key. - It must terminate at a valid root certificate. The requirement for the subject common name (CN) differs depending on whether the virtual machine belongs to a cluster. For virtual machines that do not belong to a cluster, the subject common name (CN) must be equal to, or subject alternative name (DNS Name) should contain, the FQDN of the host. For virtual machines that belong to a cluster, the subject common name (CN) must be equal to, or subject alternative name (DNS Name) must contain, the and fully qualified domain name (FQDN) of the Hyper-V Replica Broker. To display a list of certificates in the computer's My store and the thumbprint of each certificate, type the following: PS C:\\\> cd cert:\LocalMachine\My PS C:\\\> dir | format-list For more information about certificate stores, see http://technet.microsoft.com//library/cc757138.aspx.
-CimSession- Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.
-CompressionEnabled- Specifies whether to compress replication data for this virtual machine when it is sent over the network.
-ComputerName- Specifies one or more Hyper-V hosts that have the virtual machines for which you want to enable replication. NetBIOS names, IP addresses, and fully qualified domain names (FQDN) are allowed. The default is the local computer. Use localhost or a dot (.) to specify the local computer explicitly.
-Confirm- Prompts you for confirmation before running the cmdlet.
-Credential- Specifies one or more user accounts that have permission to perform this action. The default is the current user.
-EnableWriteOrderPreservationAcrossDisks- Determines whether all virtual hard disks selected for replication are replicated to the same point in time. This is useful if the virtual machine runs an application that saves data across virtual hard disks (for example, one virtual hard disk dedicated for application data, and another virtual hard disk dedicated for application log files).
-ExcludedVhd- Specifies one or more virtual hard disks to exclude from replication (for example, a virtual hard disk dedicated for the paging file). Be careful not to exclude virtual hard disks that are critical to the virtual machine's ability to start up, such as the virtual hard disk that stores the guest operating system. Excluding a critical disk could prevent the replica virtual machine from starting up properly.
-ExcludedVhdPath- Specifies the fully qualified path names to the virtual hard disks to exclude from replication.
-Passthru- Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.
-RecoveryHistory- Specifies whether to store additional recovery points on the replica virtual machine. Storing more than the most recent recovery point of the primary virtual machine allows you to recover to an earlier point in time. However, storing additional recovery points requires more storage and processing resources. You can configure as many as 24 recovery points to be stored.
-ReplicaServerName (required)- Specifies the name of the Replica server to which this virtual machine will be replicated.
-ReplicaServerPort (required)- Specifies the port on the Replica server to use for replication traffic. Make sure you specify a port that is configured on the Replica server to support the same authentication type you specify using the AuthenticationType parameter in this cmdlet. Run the Get-VMReplicationServer cmdlet on the Replica server to check the configuration of the port, or contact the administrator of the specified Replica server.
-ReplicateHostKvpItems- Specifies whether to replicate host-only key value pairs (KVP) for this virtual machine.
-ReplicationFrequencySec- Specifies the frequency, in seconds, at which Hyper-V replicates changes to the Replica server.
-VM (required)- Specifies the virtual machine you want to configure for replication.
-VMName (required)- Specifies the name of the virtual machine you want to configure for replication.
-VSSSnapshotFrequencyHour- Specifies the frequency, in hours, at which Volume Shadow Copy Service (VSS) performs a snapshot backup of the virtual machines. Specify this parameter only if application-consistent replication is enabled for the virtual machines and the value you set for the RecoveryHistory parameter is not zero. The cmdlet sets a value of zero for this parameter if application-consistent replication is disabled. Do not specify this parameter if you are extending replication from the Replica virtual machine.
-WhatIf- Shows what would happen if the cmdlet runs. The cmdlet is not run.
Windows with the Hyper-V module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.