AWS, for one example, provide a feed of upcoming "events" in EC2 in which certain instances will need to be rebooted or terminated entirely due to whatever maintenance they're doing on the physical infrastructure.
If you miss a termination event you miss your chance to copy that data elsewhere. Of course, if you're _always_ copying the data elsewhere, you can rest easy.
If you miss a termination event you miss your chance to copy that data elsewhere. Of course, if you're _always_ copying the data elsewhere, you can rest easy.