I have a Dell M6600.
With the OEM HDD i started getting a Raid 1 Degraded error.
I would use the the Intel utility to rebuilt.
After awhile the Degraded messages became more common and the performance of the M6600 just was not there. For sure an I/O issue.
I purchased 2 SSD drives and an SD Card. I upgraded the M6600.
Booting now from internal SD (lighting fast) and using the 2 256G SSD drives on Raid 1 for storage.
After a week of use I just started getting the Raid 1 Messages again.
Ofcourse I cannot tell of a performance issue for I moved the operating system and booting to the SD Card.
At this point I believe the problem was not the original HDD, Any suggestions from anyone on what could correct this issue.
As a side note I have not changed any Bios settings after the SSD Installations. I am told from sources outside of EE that I should be messing with the Sata settings and turning on AHCI. I will wait for advice from this case.
Your assistance is truly appreciated.