Saudade said:
Can anyone recommend a backup application that does *all* of the
following:
1) Automatic backup every time the source file is changed
2) Backups are in Windows format, not compressed, zipped, etc.
3) When a file is deleted from a source folder, the file is also
deleted from the backup
I'm going crazy trying to find a program that does all this, and also
isn't loaded with bugs.
What you're describing is very close to a technique (not a backup
application) called RAID 1 (mirroring).
But my advice is that you do *not* do what you are looking to do. Even if
you were to find a backup application that did this, or used RAID 1 as a
backup technique (which it is *not* designed for), you would have a very
poor and weak backup.
The problem with this is that it requires the backup media to be permantly
mounted in the computer and that makes you vulnerabve to simultaneous loss
of the original and the backup to many of the most common dangers to your
data: severe power glitches, nearby lightning strikes, virus attacks, even
theft of the computer.
In my view, secure backup needs to be on removable media, and not kept in
the computer. For really secure backup (needed, for example, if the life of
your business depends on your data) you should have multiple generations of
backup, and at least one of those generations should be stored off-site.
My computer isn't used for business, but my personal backup scheme uses two
identical removable hard drives, I alternate between the two, and use
Acronis True Image to make a complete copy of the primary drive.