I have a OWC Mecury Elite Pro Qx2 and 4 x 2TB Hitachi 7200RPM / 32MB Cache Desktars. I can set the device up as either a NRAID (Span), JBOD, RAID 0, 1, 5, or 10. I am connecting it to a 2011 iMac 3.4 GHz running Mac OS 10.6.8. I looked at the RAID configuration options. Initially, I was going to set it up as a RAID 5 but someone said it is prone to problems especially during power outtages. Is this true? If that is the case, maybe a RAID 10??? Would a RAID 10 show up on my desktop as a one 2TB or 8TB volume. I would like to store work files and family photos on the RAID but do not want to have to worry about not being able to retrieve/rebuild the information if one of the disk fails or a power outtage occurs. Any feeback would be greatly appreciated. Thanks!