Be wary of file integrity checkers

So, the other day, we were having some network trouble and our servers were unreachable off-site for about 5 or 6 hours, so I decided this might be a good opportunity to run a file integrity check on the hard disk drives in one of the linux servers that had a lot of data on it.In windows systems, you can run "scan disk" and it will defragment your hard drive and there are also built in tools that

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