AZ_Traveler, What you will need to do is Import the Foreign configuration. To do so you will need to access the controller, once there you will be on the VD MGMT page. From there highlight the controller in the list above, once it is highlighted then hit the F2 and select Foreign Config. From there you will need to Import the Foreign Configuration.  After doing this then access the OS and see if the I/O errors continue. Let me know how it goes. 
I "inherited" a T5600 with the PERC H310 controller with two 500 GB drives set up by a former employee in RAID 0 (at least from what I can tell--I have no idea why he chose RAID 0).  After a recent security audit Drive 0 is the "foreign" state on the PD Mgnt screen and Drive 1 is Online.  I've searched and found lots of info on how to import or clear the foreign configuration, but I don't get that option when pressing F2 on any page.  I can't tell if Drive 1 is bad, or just considered "foreign" because they removed the cable.  I wasn't present during the audit and I'm beginning to wonder if they pulled the cable while the system was running.  It seemed fine after their audit until I got I/O errors when accessing some partitions (Oracle Linux 6.3).  After a reboot I went into the H310 BIOS config and saw the following: The VD Mgmt page showed only Disk Group 0, RAID 0 (no foreign virtual or physical drives). The Foreign View page shows: The Virtual and Physical disk properties for Disk Group 1 are grayed out. The PD Mgmt page shows Disk 00 State Foreign and Disk 01 State Online I tried swapping the cables and saw the following changes: The Foreign View page shows: Again, the Disk Group 1 Virtual and Physical properties are grayed out. The PD Mgmt page shows Disk 00 State Online and Disk 01 State Foreign Do I have a bad disk or just a bad Virtual disk?  Is there any hope of recovering without having to reinstall?  Again, I don't get the option to import on any page of the H310 BIOS config. Thanks.
PERC 310 RAID 0 With Drive in Foreign State