My $100 USB external hard drive just decided to have a bad block, so I got to thinking about how to do backups more economically. I decided to go with a hard drive docking station. The one I ordered has USB and eSATA connections http://www.amazon.com/gp/product/B00..._ya_oh_product
Seeing as eSATA is considerably faster, and my computer didn't have the port for it, I found a card that plugs into my PCI Express x1 slot http://www.cooldrives.com/sapciexracor.html
As it turns out, that card is also a RAID controller. With and internal port multiplier, I could have a RAID 1 setup right in my desktop http://www.addonics.com/products/hos...er/ad5sapm.asp
And still retain the eSATA connection for my backups.
From what I understand, a RAID 1 setup would speed up read times, which seems like a bonus when running FS. And, of course the redundancy gained from two mirrored disks adds some nice security.
Has anyone given the RAID setup a try?