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Druva Documentation

System requirements for Hyper-V

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Software requirements for Hyper-V

This section contains information about the Windows server that Druva supports.

Operating System



  • Windows Server 2022 (Standard and Datacenter editions)
  • Windows Server 2019 (Standard and Datacenter editions)
  • Windows Server 2016 (Standard and Datacenter editions)
  • Windows Server 2012 R2  (Standard and Datacenter editions)
  • Windows Server 2012  (Standard and Datacenter editions)
  • Windows Server 2008 R2  (Standard and Enterprise editions)
Note: If you are using SCVMM for managing virtual machines on Windows Server 2008 R2 hosts:
  • When you activate the Hybrid Workloads agent, select the type as standalone or cluster (based on your setup). Do not  select the type as scvmm to register your hosts through SCVMM.
  • Druva does not support registration of Microsoft Windows Server 2008 R2 hosts through SCVMM. 

This section contains information about the Azure Stack HCI that Druva supports.

Operating System


Microsoft Azure

Azure Stack HCI v21H2

Note: Virtual machine backups with Volume Shadow Copy Service (VSS) is not applicable on Azure hosts with the Azure Stack Azure Stack HCI v21H2 operating system. Therefore, Druva  does not support VSS backup and restore operations on these Azure hosts.

Partition type and file systems for file-level restore (FLR) 


  • Primary

  • Extended

  • Basic disk (Partition type: MBR/GPT)

  • Dynamic disk (Partition type: MBR. (simple/spanned volume)


LVM (Simple/Spanned/Mirror/Stripped)


  • NTFS

  • FAT

  • FAT32

  • Ext2/3/4

  • XFS

Software requirements for FLR proxy 

Before you deploy and activate the FLR proxy, ensure that following system requirements on the Hyper-V host are met for the proxy:

  • Memory: 2 GB
  • vCPUs: 2

This is a recommended configuration for two restore jobs. If you want to run multiple restore jobs, increase the memory and number of vCPUs. 

Hardware requirements for Hybrid Workloads agent on Windows

See, Hardware requirements.

Ports and communication protocols for Druva

Druva communicates with your hosts to backup and restore data on your hosts. Druva talks to your Hyper-V host through ports and protocols that are secure for communication and transition of data.

Druva uses Transport Layer Security (TLS) protocol for establishing the connection and initiating communication between Druva components and your Hyper-V hosts.

The following diagram depicts the ports and communication protocols that are used by Druva for secure connection and communication during the backup and restore operations.

Hyper-V_ports_and_ communication_protocols.png

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