Even in an "enterprise+++ class" multi petabyte, multi drive, totally integrated from top to bottom tape archive for scientific data, there would be all kinds o

Even in an "enterprise+++ class" multi petabyte, multi drive, totally integrated from top to bottom tape archive for scientific data, there would be all kinds of errors found by our data validation process that would have failed an archive restore. It's not just cache overruns, some times the tapes or drives just screwed up silently.