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Source server requirements

This is the server that contains the data you will be protecting.

Operating system—Double-Take Backup can protect a physical or virtual source server running any of the following operating system editions.
Windows Server 2008 Datacenter, Enterprise, Standard, Essential Business Server, Web Server, Foundation Server, Small Business Server, or Storage Server Edition
Windows Server 2003 or 2003 R2 Datacenter, Enterprise, Standard, Web Edition, Small Business Server, or Storage Server Edition. Each of the Windows 2003 operating systems require Service Pack 1 or later.
Architecture—32-bit and 64-bit architectures are supported
File system—Double-Take Backup supports the same file system formats that Microsoft supports: FAT, FAT32, and NTFS.
System memory—There are different memory requirements depending on the system architecture you are using. Be sure you have at least the minimum amount of memory for your environment. You should consider having at least the recommended amount of system memory.

Architecture	Minimum System Memory	Recommended System Memory
32-bit	128 MB	At least 512 MB
64-bit	512 MB	At least 1024 MB

Disk space for program files—This is the amount of disk space, approximately 130 MB, needed on the source to hold the Double-Take Backup program files.
Server name—Double-Take Backup includes Unicode file system support, but your server name must be in ASCII format.
Network protocols—Your servers must use TCP/IP with static IP addressing.
Microsoft .NET Framework—Version 3.5 Service Pack 1 is required on the source.
Junction points—Only domain controller junction points will be replicated. Any user-created junction points will be replicated as two unlinked copies of the data.