My first office net was on Unix with 35 dumb terminals. Sometimes I miss the simplicty of the thing. We had two hard drives, one the mirror of the other. When we finally became aware [1990 or so] of how dependent on data we had become, we installed a pull out chassis for the second drive so somebody took it home at night,

Then, there was a fire in a high rise office building down the street, and they 'discovered' that it was laced with asbestos. Everybody was denied access for -- well, forever, without gear. All the client files, all the evidence, everything was 'contaminated.' They had no off-site backup.

They have now implimented a key-person system, based upon CDs. 3 people take home a current disc every night, un-encrypted, because who knows what it might take to get back up? They have about 1000 gig off site [imaged files] with a commercial service. But, their base data is still going home with 3 people, every night.