I have a problem :)
I would like to identify how much change there has been at block level to either an entire disk or a particular file.
Ideally there is a tool that runs a scan on a disk or a file and produces "fingerprints" for each block and then is able to compare those fingerprints at a later stage to arrive a number of changed blocks since the last scan.
Does anyone have any ideas? Can anyone suggest any tools, command line utilities?
I found the following project:
which is a C# implementation of the rdiff tool which is itself based on the rsync algorithm and essentially is along the lines of what I was hoping for.
Now what I need is a tool that outputs the data changed stats without writing out a delta file.