Not a bad script, but it's basically going "shields up!", blocking all traffic, and then taking them down. Definitely useful, but won't test for the hard stuff

Not a bad script, but it's basically going "shields up!", blocking all traffic, and then taking them down. Definitely useful, but won't test for the hard stuff, like if my DB was in the middle of something and then died, scrambling my data. What's that gonna look like on reboot?