> Commvault Cloud > Virtualization > Hyper-V

System Requirements for Hyper-V

If you want to back up on-premises Hyper-V servers, verify that your environment meets the requirements.

Hyper-V Deployment Model

To facilitate on-premises data backups, you can configure a backup gateway. Alternatively, you may skip this step and proceed without a gateway. To review the requirements for the backup gateway, see Commvault Cloud Backup Gateway.

Install a backup gateway for Hyper-V on at least one Hyper-V host in the cluster. The backup gateway communicates on TCP port 443 with the Commvault Cloud backup services that are hosted in the cloud and with the Commvault Cloud backup gateway.

Best practice

For the best backup and recovery performance, install the Commvault Cloud backup gateway for Hyper-V and the Commvault Cloud backup gateway on the same local network. Using this configuration, options for both local and cloud backup copies are available.

Requirements for Accessing the VMs to Protect

Obtain the user credentials to access the Hyper-V server from your Hyper-V administrator.

  • The hypervisor can be a Hyper-V cluster, a Hyper-V server in a cluster, or a standalone Hyper-V server.

    Be prepared to enter credentials for the Hyper-V server or cluster. The user must belong to the Hyper-V administrators group for the Hyper-V Server 2012 and later. For a Hyper-V cluster, the user account must have full cluster permissions (Read and Full Control).

    Note

    For a single node Hyper-V setup, the account does not need to be part of the local administrators group for Hyper-V Server 2008 R2 or the Hyper-V administrators group for Hyper-V Server 2012 and later.

Requirements for Accessing Cloud Storage for Backups

To store your backups in the cloud, you must configure access to the cloud storage.

Physical Machine Operating Systems

  • Microsoft Windows Server 2025 x64 Editions (Standard, DataCenter, and Core)

  • Microsoft Windows Server 2022 (including Server Core installations)

  • Microsoft Hyper-V Server 2022 (including Server Core installations)

  • Microsoft Windows Server 2019 (including Server Core installations)

  • Microsoft Hyper-V Server 2019 (including Server Core installations)

  • Microsoft Windows Server, version 1709 (including Server Core installations)

  • Microsoft Hyper-V Server, version 1709 (including Server Core installations)

  • Microsoft Windows Server 2016 (including Server Core installations)

  • Microsoft Hyper-V Server 2016 (including Server Core installations)

  • Microsoft Windows Server 2012 R2 (including Server Core installations)

  • Microsoft Hyper-V Server 2012 R2 (including Server Core installations)

  • Microsoft Windows Server 2012 (including Server Core installations)

  • Microsoft Hyper-V Server 2012 (including Server Core installations)

  • Microsoft Windows Server 2008 R2 SP1

Virtual Machine Operating Systems

All guest operating systems that are supported by Microsoft Hyper-V are supported.

Hyper-V Integration Services

To back up the VMs on a Hyper-V server or cluster, Hyper-V integration services must be installed and updated on the VMs.

Hard Drive

100 GB is recommended.

Allocation Unit Size of the NTFS Volumes

The cluster size or the allocation unit size of an NTFS volume in a VM must be a multiple of 1024 bytes. You can set the cluster size before formatting a volume. The default cluster size is 4096 bytes.

Software That Is Automatically Installed

The following Redistributable Packages are installed automatically. The Redistributable Packages can co-exist with other versions of the Commvault Cloud software.

  • Microsoft Visual C++ 2010 Redistributable Package

  • Microsoft Visual C++ 2013 Redistributable Package

  • Microsoft Visual C++ 2017 Redistributable Package

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