Hello.   You may have lost your array and any continued attempts to get it back online may cause further damage. Run offline diagnostics in the hard drives to ascertain whether or not the issue is with the drives.    If this data is critical to our business applications and you do not have backup, I would recommend that you contact a data recovery company. Otherwise, if you have backup, deleting the VD and re-creating the array is the way to go. However, this procedure is data destructive and will require that you restore from backup.
I am at a complete loss here on what to do to bring the RAID back up...  I have a S100/RAID 10 on a Dell R410 and the Virtual Disk shows as Failed, but all four of the physical disks are showing green and online (!).  I've tried a rescan, and powered off/on a few times, as that's about the only thing I can think of.  Each of the four disks is a 3.6TB WD, if that helps at all.  This started with a system freeze - there were no other warnings or indicators of issues with the RAID or disks. The last thing I want to do with is nuke the VD and re-create if it leads to data loss - so any help would be appreciated. Shawn
PERC S100 Failed RAID 10 - No failed physical disks