I found this simple suggestion via Googling on techniques for scrubbing hard drives prior to disposal: dd if=/dev/random of=/dev/hdb && dd if=/dev/zero of=/dev/hdb (repeated in a for-do loop several times) This seems simple and inexpensive, but I was wondering about a couple things. Specifically: How does it know how much data to write or when to stop? Anyone have experience or comments regarding the effectiveness of this technique? I imagine it could require some time, too. I also read a little about the standard shred utility, but there seemed to be some cavea related to ext3 file systems. -- BMT
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