RAID-0 external hard drives, how do they work?

[demarcopbl]

Hi all, im looking at buying an external hard drive form OWC >

http://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/PerformanceRAID#

and am confused as to their description of the drive. Is it writing all of my data twice, so I have a back up for my back up, or is it splitting the information across two drives? Surely having bits of a file across two drives would be useless if one of them failed?

Also, does anyone have any experience with this company/drive? or other recommendations for an external drive? It doesn't need to be too portable, just robust, reliable and if it were able to save all of my files to a second back-up, that would be ideal.

thankyou, Mike

 

[geoffreak]

Read this. Data is not redundant.

 

[mgridgaway]

I'm generally against the idea of striped (0) raids. It's twice the chance of failure, and the improvements you gain in speed aren't anything worth writing home about.

I have the single bay version of that enclousre, as well as a Guardian Maximus, and I can say they're both quality products. They're a bit on the pricey side, but you get what you pay for.