Dell - Chris H,  I have upgraded the OMSA version to version 7.3, It was Version 6.5. Firmware Version 5.2.2-0072  Driver Version 2.24.00.32  Storport Driver Version 5.2.3790.4173  After a day and several reboots the degradation resolved itself.  Thanks. Is there a manual consistency scan for the S300 or S100 that can be used for testing? 
I have a  PowerEdge T310 with a S300 embedded controller and a RAID 5 Array.  The array has 3  Dell 300 GB SAS drives.   The system is bootable, working and I can access the desktop.  The system is running Windows Server 2008 Sp2  X86.  I have the system patched  to current levels.    Open Manage is showing me that the array is DEGRADED.   It is also showing as degraded during boot.   All 3 drives are online and working according to OMSA.  There is no consistency check for this controller array ans an option in OMSA.  How do I restore the array to consistency and get rid of the degraded state?   Thanks,   Rick Vabulas
Recover Degraded Raid 5 Array on PE310 with S300 controller