Alon Swartz - Tue, 2010/08/31 - 19:46 -
According to Murphy's Law, everything that can go wrong, eventually will go wrong.
This is true for backups on multiple levels. A backup is often our last line of defense when things go wrong, but so many things can go wrong with the backup itself that we usually don't find out about it until, well, horror of horrors, the backup fails.
On the surface, backups can fail for zillions of reasons.