Yes, and you can probably get better performance with different block sizes. This is just what I used to fix drives as it was fast enough and I couldn’t be arsed to do any real testing to find the right speed. Also, my stash of drives was no where near homogeneous, so the right size for one type of drive may not have worked for a different type of drive. I also used the 4MB block size when imaging drives to have an ok-ish speed while not losing too much data if there were read errors.
This is helpful but can I use a larger block size? Any performance implications, security risks, etc?
Yes, and you can probably get better performance with different block sizes. This is just what I used to fix drives as it was fast enough and I couldn’t be arsed to do any real testing to find the right speed. Also, my stash of drives was no where near homogeneous, so the right size for one type of drive may not have worked for a different type of drive. I also used the 4MB block size when imaging drives to have an ok-ish speed while not losing too much data if there were read errors.