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Software which can generate checksum for large, deep directory

T

The111

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May 4, 2009
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I have quite a bit of data that I backup on two external drives which I keep at two separate locations. I call it my ghetto RAID, and I'm sure plenty of people would never use such a system, but I do. :eek: I don't like relying on backup/synchronization software, so I manually maintain each archive and keep them in sync. However, I like to have a foolproof way to verify each drive is identical (and not corrupted anywhere). For a long time I was using a free checksum tool from corz.org which does exactly what I needed, generates one checksum for an entire directory and all its contents (recursive). However, I experience some problems with it, especially when verifying a particularly large archive with hundreds of thousands of files in it... it often locks up or simply disappears.

Anyone know of any other similar software which can do what I'm looking for?

Thanks!
 
I'm unsure why a lengthy checksum process, with a complete copy to push content, is ideal over a sync watcher/manager... But if you can describe the archives' contents further, such as file types and applications used to interact with the files, then that may yield some alternate suggestions.
 
There are all sorts of files. Audio, video, text, you name it. Basically it is my master archive of every piece of data I've ever cared about. Around 1TB.

I am giving a little consideration to the sync manager option you mention, but I've never used one. I have a bad taste in my mouth for the sync concept because damage can be done easily with a mistake due to misinterpretation... my anecdotal personal example is clicking the wrong button in Xmarks once and losing years of bookmarks (fortunately I got them back somehow).

How do these sync programs determine if a file is different from another?

filename, date and size?
checksum?
check all bits?
 
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