16577: Acronis Backup & Recovery: Agent and Agentless Backup of Virtual Machines

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Comparison chart on performing backups of virtual machines with Agent for Windows/Linux and with agentless backup of Virtual Edition

Description

Acronis Backup & Recovery Virtual Edition is designed and optimized specially for agentless backup of virtual machines: Acronis Backup & Recovery Agent for ESX/ESXi and Acronis Backup & Recovery Agent for Hyper-V allow you to perform backups of virtual machines without the need to install an agent on each guest system - agents only need to be installed on hosts.

The table below shows the main differences between agentless backup and using Agent for Windows/Agent for Linux to back up a virtual machine.

Agentless backup Agent for Windows/Linux
Available in Acronis Backup & Recovery Virtual Edition
  • Acronis Backup & Recovery Advanced Server
  • Acronis Backup & Recovery Virtual Edition*
Licensing

Backup of an unlimited number of virtual machines on the same physical host with 1 license of Acronis Backup & Recovery Advanced Server - Virtual Edition.

If you are using clustered VMware ESX servers, you need 1 license for Acronis Backup & Recovery Virtual Edition per each ESX host in cluster.

  • 1 license of Acronis Backup & Recovery Virtual Edition: backup of 1 physical machine and an unlimited number of virtual machines on the same physical host
  • 1 license of Acronis Backup & Recovery Advanced Server: backup of 1 physical and 4 virtual machines on the same physical host
  • Other Acronis Backup & Recovery products: 1 license per machine (physical or virtual)
Installation One Agent on host machine One Agent on each virtual machine
Hosts supported
  • VMware ESX/ESXi Server.
  • Windows Server 2008 Hyper-V.
  • VMware ESX/ESXi Server
  • VMware Server
  • VMware Workstation
  • MS Virtual Server 2005
  • MS Virtual PC 2005
  • MS Virtual PC 2007
  • Windows Server 2008 Hyper-V
  • Parallels Workstation
  • Citrix XenServer
  • Kernel-Based Virtual Machines
  • Red Hat Enterprise Virtualization

See also Virtual Machines Supported by Acronis Products.

What OS can be backed up? Any operating system supported as guest by virtualization server.

Operating systems supported by Agent for Windows / Agent for Linux.

See Acronis Backup & Recovery 11: Supported Operating Systems.

Back up selected files/folders inside virtual machine NO** YES
Back up to Online Storage YES YES
Exclude files/folders from backup YES YES
Recover backup to a virtual machine YES*** YES***

Recover backup directly to virtualization server

YES NO

Backups can be recovered as virtual machines directly on ESX/ESXi and Hyper-V virtualization servers.

Backups can also be recovered as virtual machines of the following types:

  • VMware Workstation
  • Parallels Workstation
  • Citrix XenServer
  • Microsoft Virtual PC

Backups can only be recovered as virtual machines of the following types:

  • VMware Workstation
  • Parallels Workstation
  • Citrix XenServer
  • Microsoft Virtual PC

These machines can be imported into virtualization server manually.****

Legend:

  • NO (grey) - Function not available
  • YES (green) - Function available

* Other editions of Acronis Backup & Recovery also allow installing Agent for Windows/Linux on virtual machine. However, since their licensing policy does not offer any special treatment of virtual machines (1 license is per one machine, either physical or virtual) it is not recommended to use them to back up virtual machines.

** You can recover files and folders from a disk image.

***  Only Windows guests can be converted to virtual machine automatically.

**** (!) Even though virtual disk files have the same extensions, additional manipulations may be necessary to add virtual machines to virtualization servers. See Importing Converted VHD Virtual Disk to Citrix XenServer.

Virtual machines with Acronis Backup & Recovery Agent for Windows/Linux installed inside will be shown in Physical Machines list in Acronis Management Server. Virtual machines backed up by Acronis Backup & Recovery Agent for ESX/ESXi or by Acronis Backup & Recovery 10 Agent for Hyper-V will be shown in Virtual Machines list.

More information

See also:

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