Verify that your environment meets the requirements for protecting Azure Stack Hub VMs with Commvault Cloud.
Azure Stack Hub Version
Azure Stack Hub 2002 and more recent versions are supported.
Note
To protect Azure Stack Hub virtual machines, you must upgrade your CommCell environment to Commvault Cloud version 11.20 or a more recent release, and you must upgrade all of your Azure Stack Hub virtual machines to Azure Stack Hub 2002 or a more recent release. Using previous versions of Azure Stack Hub with previous versions of the Commvault Cloud software is possible. However, with those previous versions, a known Microsoft issue with snapshots of unmanaged VMs can cause data corruption. To avoid data corruption, you must upgrade both your CommCell environment and your Azure Stack Hub environment.
Access Nodes
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You must have at least 1 access node for Azure Stack Hub.
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For best results, deploy access nodes on virtual machines in the Azure Stack Hub cloud. For faster backups, deploy access nodes on an Azure Stack Hub VM that is compute-optimized.
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If you have existing access nodes that are used to support Azure or Azure Resource Manager, use different proxies for Azure Stack Hub.
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Azure Stack Hub access nodes must meet the following requirements:
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Must run one of the following operating systems:
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Microsoft Windows Server 2025 x64
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Microsoft Windows Server 2022 x64
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Microsoft Windows Server 2019 x64
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Microsoft Windows Server 2016 x64
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Must have a minimum of 100 GB disk space.
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Must have a minimum of 4 GB RAM, beyond the requirements of the operating system and any other running applications. For more information, see Sizes for virtual machines in Azure Stack Hub in the Microsoft documentation.
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Must have Azure PowerShell installed and Azure Stack Hub tools downloaded.
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If deployed on a virtual machine in Azure Stack Hub, must have a public IP address.
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Access Node Network Requirements
Access nodes for Azure Stack Hub hypervisors must have the Virtual Server Agent (VSA) package installed to enable backup and restore operations. For information on how to add a hypervisor and install the access node, see Configuring Backups for Azure Stack Hub.
Guest Operating Systems
Virtual machines being backed up can have any of the guest operating systems that are supported by the Azure Stack Hub platform.
Network Gateway Requirements
If the access node cannot reach the Commvault Commserver or MediaAgent(s) directly, you must create one or network proxies to proxy traffic from your Azure Stack Hub VPC to your Commvault Cloud infrastructure. To connect to the proxies and domains that are associated with your Commvault Cloud environment, see Network Connectivity.
HTTP/HTTPS Proxy Requirements
You can access the internet by configuring the HTTP/HTTPS proxy to access Azure Stack Hub service endpoints. See, Using an HTTP Proxy to Access the Internet.
Configuring a Firewall to Install the VSA
To deploy Commvault Cloud software to an access node, when other components (such as the CommServer) are on premises, configure a firewall for an access node in the cloud between the on-premises components and the cloud VM or instance.
Storage Requirements
Commvault Cloud requires that Azure Stack Hub access nodes meet the following minimum specification:
|
Components |
Extra Small |
Small |
Medium |
|---|---|---|---|
|
CPU/RAM |
2 vCPUs/16 GiB |
4 vCPUs/24 GB |
8 vCPUs/32 GB |
|
Front End Terabytes (FET) |
110 TiB |
25 TiB |
50 TB |
Front-End Terabytes (FET) refers to the amount of file-system data written to the compute instance(s) configured for backup. Commvault recommends not exceeding the vCPU/RAM specifications of a Medium instance. Instead, scale horizontally by adding more access nodes.
DISCLAIMER
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.