A continuity of operations plan (COOP) would normally call for leaving a copy of the backup tape on site and also leaving a copy of the tape in a secure place off site.
Only one copy of an unsecured backup tape is an accident waiting to happen, regardless of where it is stored. From a purely logical standpoint, transporting the tape exposes it to risks of an automobile or bus or subway accident.
Back during the 1980s in Washington, DC people discovered that tapes or floppy disks they were carrying sometimes were completely erased after riding Metro Rail. The mystery was solved when somebody discovered that the new cars Metro bought generated a strong magnetic field right over the electric motors on the car. People who sat in the seats directly over the wheels had their magnetic media erased courtesy of Metro.
How many organizations have a network large enough to require a tape backup? And how long does it take to dupe a tape?
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>>;AT: Well, I think it's important to take it off-site, in case there's a disaster. So I take it home with me on Fridays and stick it in a drawer. On Mondays I bring the previous week's full back-up to the office.>;>
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