Azure Stack HCI: System Requirements

For Azure Stack HCI support, you must install the VSA on all nodes in the Azure Stack HCI cluster.

Azure Stack HCI Version

The Commvault software is supported with Azure Stack HCI version 20H2 and more recent versions.

Virtual Machine Operating Systems

You can back up virtual machines that have any of the guest operating systems that are supported by the Azure Stack HCI platform.

Hard Drive

100 GB is recommended.

Hardware Specifications

For information about hardware requirements for the Virtual Server Agent, see Hardware Specifications for Virtual Server Agent.

Allocation Unit Size of the NTFS Volumes

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

Microsoft Visual C++

The following redistributable packages are installed automatically. The redistributable packages can co-exist with other versions of the Commvault software.

  • Microsoft Visual C++ 2013 Redistributable Package

  • Microsoft Visual C++ 2017 Redistributable Package

Notes on Virtual Server Agent Installations

The Virtual Server Agent is installed directly onto the Azure Stack HCI Server.


Certain third-party software and service releases (together, "Releases") may not be supported by Commvault. You are solely responsible for ensuring Commvault’s products and services are compatible with any such Releases.