We have a couple of computers in our lab which are deliberately not networked because they run sensitive CPU-intensive real-time data-collections with the potential to be disturbed by random background processes, which naturally tend to increase if the computers are networked. We need a better backup solution for the computers (running Windows XP) that manual copying onto USB sticks (current solution).
I would like USB hard drives which are constantly plugged in, with automatic overnight backups. The backups should have some kind of versioning system, which basically just fill up the USB drives with the latest versions of data files and delete the old ones when the drive is getting full. It is important that this software is reliable, and that nothing of this causes busy extra processes to run during the day time.
Can anyone recommend a specific software and hardware solution? Extrernal hard drives bundled with appropriate software appeal most, because of the simplicity of just making one purchase decision. I know there are free software tools that can in theory do this kind of thing but I don't know if they are reliable.