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TimeData requirements

In addition to the repository server requirements, the following requirements apply to the TimeData continuous data protection functionality of Double-Take Backup.

Operating system—If your repository server is running a Windows 2003 operating system, you must have Service Pack 2 installed on the server.
File system—NTFS is the only supported file system. Do no use FATx file systems on the repository server.
System memory—The minimum system memory requirements for the repository server are higher with TimeData continuous data protection.

Architecture	Minimum System Memory	Recommended System Memory
32-bit	1 GB	2 GB
64-bit	2 GB	4 GB

Disk space for program files—This is the amount of disk space, approximately 1. 5 GB, needed on the repository server to hold the TimeData program files.
Disk space for TimeData historical data—This is the amount of disk space, approximately two and a half times the amount of data being protected for each source, needed on the repository server to hold the TimeData continuous data protection historical data. You may need to adjust the amount of disk space needed based on the applications and data on your source, the number of days of historical data you choose to store, and the change rate of your data. There is a combined limit of 2 TB of TimeData historical data for all sources that you are protecting to the repository server.
Microsoft Internet Information Services—Microsoft IIS version 5.0 or later is required on the repository server.
Microsoft ASP.NET—The version of Microsoft ASP.NET included with your Windows operating system is required on the repository server.
Microsoft SQL Server—TimeData will automatically install Microsoft SQL Server Express or Standard, depending on your Double-Take Backup media (CD or web download).
Drive configuration—For best results using TimeData continuous data protection, you should separate the operating system, SQL Server, the TimeData drive, Event log, and Event cache on different drives.