> What do you use to back up data? I'm not talking about permanent archival, 
> I'm talking about rolling backups so that if a small meteorite hits your 
> server room, you don't loose all the data you're working on.

Our backups are usually used when someone accidentally deletes a file (or a 
lot of files!) from the server...

AFAIK over at IT they use a tape backup system - it runs every night on a 
rolling basis, I think at the moment you can get a backup from the last 7 or 
10 days, after that they start overwriting.  On top of that weekly ones are 
kept and stored separately (so I assume that allows you to get back 7 or 10 
weeks).  It's pretty complex and I don't know much about the details - but I 
do know that a while back they had to make some changes because there wasn't 
enough time overnight to do the backup :-)

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