Unfortunately, RAID or not, if you write bad data, or erase files fromThat's what the rsync rolling backups are for. The ability to have a history of what the file system looked like, 15 mins ago, 30 mins ago, 1 hour ago, 2 hours ago, 3 hours ago, etc - ad nauseum, and only increasing storage requirements by approximately 100-125%.
one half of the mirror, both copies are bad! Just like single drives.
B-)
And of course, you can RAID and rsync your data till your heart's content, but none of that does away with the sensible requirement of off-site backups, either in tape, removable hard drive, or network form. You can erase the files, sure. And that's a valid thing to worry about. But it's nothing compared to what a tornado, fire, direct lightning strike, or $your_natural_disaster_of_choice will do to them. :)
Aaron S. Joyner
PS - how's that for a $too_long_to_be_practical variable name?
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