Indeed, big companies often do disaster prepareness exercises from a business continuity point of view. I remember doing one 15 years ago at a Big 4 accounting

Indeed, big companies often do disaster prepareness exercises from a business continuity point of view. I remember doing one 15 years ago at a Big 4 accounting firm. Failing everything (including my little bit) across to secondary site in another city, and it had to be done by someone other than me (since I was the main person responsible for my system). As they say, you should always check you can restore your backups.