It's actually very common for both drives to fail at once. Examples: - case fans fail, everything overheats - room AC fails, everything overheats - power sup

It's actually very common for both drives to fail at once. Examples: - case fans fail, everything overheats - room AC fails, everything overheats - power supply goes haywire, toasts drive electronics - box falls off the shelf, drives crash - fire or smoke damages drives - roof leaks, drips onto drives - one drive fails but nobody notices for a month until the next drive fails - burglars steal box No, not all these have happened to me.