[DM-MUG] backups, external FW drives, and concatenated RAID

[Victoria L. Herring]

>I ran out of room on my external 250GB Archive drives (one source, 
>one backup) this weekend. So I bought a new external 500GB WD MyBook 
>Firewire drive, and used OS X's Disk Utility RAID features to 
>concatenate the two 250GB externals to act as the 500GB backup 
>solution for the new 500GB drive.

Darcy I really hate to sound stupid, and it IS early, but perhaps you 
could explain to me what the value of a RAID is and what 
concatenation is and why this is better than the two source and 
backup drive system you had....the picture was a big help but I'm 
missing some of the early explanation....
-- 
Victoria L. Herring, Attorney, Civil Rights, Discrimination & 
Employment Law, <http://www.HerringLaw.com>;  Travel research, 
planning & Photography site and blog, 
<http://www.JourneyZing.com/blog>;  Des Moines, Iowa, ph.515-255-4475.