General source and target server requirements

Verify that each server meets the following general source and target requirements, and then confirm your servers meet any additional requirements for your workload type.

Foundation Edition

Windows 2003 and 2003 R2 operating systems

Storage Server Edition
Small Business Server

Windows 2008 and 2008 R2 operating systems

Storage Server Edition i386 and x64
Small Business Server Standard and Premium x64
Foundation Server with SAK
Essential Business Server x64

Virtual server protection

There is no virtual server (guest-level or host-level) protection with the Foundation Edition.

Notes

You can install the Foundation Edition on a server running other server Windows operating systems, so you do not have to pay extra for an upgraded Double-Take Availability license. When the Foundation Edition is installed on a server running these other server Windows operating systems, the following limitations will apply. 1) The server will function in a target role only. 2) The target-only server can only protect a source that is running the Double-Take Availability Foundation Edition and one of the operating system editions listed for the Foundation Edition. 3) Full-server failover is the only supported method of failover.

Standard Edition

Windows 2003 and 2003 R2 operating systems

Storage Server Edition
Small Business Server
Web Edition i386 and x64
Standard Edition i386 or x64

Windows 2008 and 2008 R2 operating systems

Storage Server Edition i386 and x64
Small Business Server Standard and Premium x64
Foundation Server
Essential Business Server x64
Web Server i386 and x64
Standard Edition i386 and x64

Virtual server guest-level protection

The Standard Edition can run inside one virtual server to provide workload protection for data and/or applications running on the guest operating system.

Virtual server host-level protection protection

There is no virtual server host-level protection with the Standard Edition.

Advanced Edition

Windows 2003 and 2003 R2 operating systems

Storage Server Edition
Small Business Server
Web Edition i386 and x64
Standard Edition i386 or x64
Enterprise Edition i386 and x64

Windows 2008 and 2008 R2 operating systems

Storage Server Edition i386 and x64
Small Business Server Standard and Premium x64
Foundation Server
Essential Business Server x64
Web Server i386 and x64
Standard Edition i386 and x64
Enterprise Edition i386 and x64

Virtual server guest-level protection

The Advanced Edition can run inside one virtual server to provide workload protection for data and/or applications running on the guest operating system.

Virtual server host-level protection protection

There is no virtual server host-level protection with the Advanced Edition.

Notes

If you are using Hyper-V R2 with Cluster Shared Volumes (CSV), you can use Double-Take Availability within the guest to protect your workloads. However, you will be unable to protect the virtual machines at the host level using Double-Take Availability.

Premium Edition

Windows 2003 and 2003 R2 operating systems

Storage Server Edition
Small Business Server
Web Edition i386 and x64
Standard Edition i386 or x64
Enterprise Edition i386 and x64
Enterprise Itanium IA64
Datacenter i386, x64, IA64

Windows 2008 and 2008 R2 operating systems

Storage Server Edition i386 and x64
Small Business Server Standard and Premium x64
Foundation Server
Essential Business Server x64
Web Server i386 and x64
Standard Edition i386 and x64
Enterprise Edition i386 and x64
Itanium Edition
Datacenter Edition i386 and x64

Virtual server guest-level protection

The Premium Edition can run inside an unlimited number of virtual servers to provide workload protection for data and/or applications running on the guest operating system. These licenses can be spread across multiple hosts.

Virtual server host-level protection protection

There is no virtual server host-level protection with the Premium Edition.

Notes

Virtual Guest 5-Pack Edition

Windows 2003 and 2003 R2 operating systems

Storage Server Edition
Small Business Server
Web Edition i386 and x64
Standard Edition i386 or x64
Enterprise Edition i386 and x64
Enterprise Itanium IA64
Datacenter i386, x64, IA64

Windows 2008 and 2008 R2 operating systems

Storage Server Edition i386 and x64
Small Business Server Standard and Premium x64
Foundation Server
Essential Business Server x64
Web Server i386 and x64
Standard Edition i386 and x64
Enterprise Edition i386 and x64
Itanium Edition
Datacenter Edition i386 and x64

Virtual server guest-level protection

The Virtual Guest 5-Pack Edition can run inside five virtual servers to provide workload protection for data and/or applications running on the guest operating system. These licenses can be spread across multiple hosts.

Virtual server host-level protection protection

There is no virtual server host-level protection with the Virtual Guest 5-Pack Edition.

Notes

Virtual Host Standard Edition

Windows 2008 and 2008 R2 operating systems

Standard Edition

Virtual server guest-level protection

There is no virtual server guest-level protection with the Virtual Host Standard Edition.

Virtual server host-level protection protection

The Virtual Host Standard Edition runs outside the virtual server to protect the virtual disk (.vmdk or .vhd) and its associated files stored on the host operating system. This edition can protect five virtual servers on any number of ESX hosts, and it can protect an unlimited number of virtual servers on a single Windows Standard Edition Hyper-V host.

Virtual Host Advanced Edition

Windows 2008 and 2008 R2 operating systems

Standard Edition
Enterprise Edition

Virtual server guest-level protection

There is no virtual server guest-level protection with the Virtual Host Advanced Edition.

Virtual server host-level protection protection

The Virtual Host Advanced Edition runs outside the virtual server to protect the virtual disk (.vmdk or .vhd) and its associated files stored on the host operating system. This edition can protect ten virtual servers on any number of ESX hosts, and it can protect an unlimited number of virtual servers on a single Windows Standard or Enterprise Edition Hyper-V host.

Virtual Host Premium Edition

Windows 2008 and 2008 R2 operating systems

Standard Edition
Enterprise Edition
Datacenter Edition

Virtual server guest-level protection

There is no virtual server guest-level protection with the Virtual Host Premium Edition.

Virtual server host-level protection protection

The Virtual Host Premium Edition runs outside the virtual server to protect the virtual disk (.vmdk or .vhd) and its associated files stored on the host operating system. This edition can protect an unlimited number of virtual servers running on a single ESX host, and it can protect an unlimited number of virtual servers on a single Windows Standard, Enterprise, or Datacenter Hyper-V host.