Microsoft Hyper-V

You can use the Virtual Server Agent (VSA) to back up and recover virtual machine data in a Hyper-V cluster or a standalone Hyper-V server.

Key Features



Additional information

Agentless backups and restores

Install the Virtual Server Agent on a Hyper-V node to act as a VSA proxy. A VSA proxy manages backup and restore operations for guest VMs in your environment, eliminating the need to install agents on guest VMs.

Deployment Planning

System Requirements

"Incremental forever" data protection

After an initial full backup, you can perform ongoing incremental backups to capture changes for the source VM.


Changed Block Tracking

Commvault uses Changed Block Tracking (CBT) to identify changes for each incremental backup.

Changed Blocked Tracking


You can restore full VMs, disks, or guest files and folders


Disaster recovery

Replicate VMs to a warm recovery site to ensure that VMs are available in the event of a disaster or other outage. DR orchestration features include planned or unplanned failovers and failbacks.

Live Sync Replication

Simplified operational interface

The web-based Command Center interface uses smart defaults to simplify configuration and support streamlined operations.

Command Center

Self service for end users

The Web Console provides self service options for end users and groups.

Web Console

VM provisioning

End users can use the Web Console to provision VMs based on pre-defined templates.

VM Lifecycle Management

Advanced administration

The CommCell Console provides advanced options for Commvault operations.

Using the CommCell Console, you can configure a virtualization client that serves as a single point of administration for all cluster nodes. You can perform backups and restores from the virtualization client, and perform other administrative tasks such as creating schedules and generating reports.

Creating a Virtualization Client

Automatic protection for all virtual machines in a cluster or server

By default, all virtual machines in a Hyper-V cluster or server are automatically selected for backup, to ensure that all virtual machines are backed up.

Excluding Unprotected Virtual Machines in the Default Subclient

Application-aware backups

Perform application-consistent backups without manually installing application agents on virtual machines.

Application-Aware Backups

Automatic discovery

To back up categories of virtual machines, you can create rules to automatically select virtual machines based on specific criteria. Automatic discovery is useful in environments where virtual machines are frequently added or removed.

Adding Subclient Content Using Discovery Rules

Protection of migrated virtual machines

The virtual machines in a cluster are seamlessly backed up even if virtual machine migrate to a different host. When the cluster is backed up, incremental backup cycles are also maintained.

Customized filters

To exclude virtual machines from backups, create rules to filter virtual machines.

Filtering Virtual Machines from a Backup

VM conversion

When restoring a VM, you can choose to restore to a different hypervisor. This capability can be used to migrate VMs to a different virtualization platform.

Virtual Machine Conversion


You can view detailed information about each backed up virtual machine, including information such as size of the data, the status of integration services, the guest operating system, and the host on which the virtual machine is running.

Reports for Virtual Server Agents

System Center plug-in

You can install the Commvault System Center plug-in to manage backups and recovery of Hyper-V virtual machines from within the System Center on the Command Center.

Installing and Launching the System Center Plug-In

Snapshot support

Use array snapshots to capture virtual machine data quickly, with minimal impact on the source VM, and use the snapshot as a source for backup copies.

Microsoft Hyper-V

Commvault Platform Features

The following features are available throughout Commvault and are not limited to the Virtual Server Agent.



Additional information

Policy-driven data protection

Policies drive operations to meet service level agreements (SLAs).

Schedule Policies

Storage Policies

Subclient Policies

Monitoring Policies

Block-level deduplication

Block-level deduplication compares blocks of data during backups. If virtual machines contain identical blocks of data, block-level deduplication eliminates the storage of redundant data and reduces the size of data in storage.

Deduplication Overview

Built-in compression

Commvault storage policies automatically enable compression to reduce the quantity of data sent to storage.

Data Compression

Data Compression for VSA