Going in circles without a real-time clock
I have a story about paper cuts when using a little Linux box.
One of my sites has an older Raspberry Pi installed in a spot that
takes some effort to access. A couple of weeks ago, it freaked out and
stopped allowing remote logins. My own simple management stuff was
still running and was reporting that something was wrong, but it
wasn't nearly enough detail to find out exactly what happened.
I had to get a console connected to it in order to find out that it was
freaking out about its filesys...
Read more at rachelbythebay.com