I'm looking for a reliable backup solution on Windows, something with a feature set similar to Yadis.
I've been using CrashPlan for 2 months, but their software lost more than 1TB of my data, that's why I'm looking for alternatives.
Requirements:
Real-time folder-to-folder backup:
I don't need online features, I want to use this to duplicate my files between my local disks.
Versioning support:
Should be able to choose how many versions to keep of the files.
Plain backup:
I'd like to be able to open the backup without special software. No proprietary file format.
External disk support:
Shouldn't have any problem using external disks, at least on the source side.
Backup every file, even locked/system files. (Yadis fails this one)
Should start automatically, and have a comfortable GUI.
Should use actively maintained and/or popular software. I don't want to use discontinued products.
Optional requirements:
Low RAM usage
I'm not really comfortable with something that eats 1GB of my RAM.
Compression support
Preferably ZIP, but I'm not picky about this. Any ordinary everyday format is acceptable.
Freeware or Open Source
Preferred, but not necessary. I can do a one-time payment within reasonable bounds. (preferably under $100)
I only need Windows support, but if it works on Linux, that's a plus.
I've already searched and tried lots of software, most of them failed at the plain backup, the versioning or the locked file backup requirements.
