In fact the RAID 10 combines the features and capabilities of RAID 0 and RAID 1 with the difference that is necessary to have 4 Hard Disk Drive connected to the system.
I recommend you to turn the system down and unplug the faulty HDD. Once this is done you may connect the new one and start rebuilding the array.
Yes,I tried to do that, in multiple different ways.
In all cases, the BIOS says the array is "FAILED", and refuses to boot from it. There seems to be no
way to add the replacement disk to array, or mark it as a spare.
If the RAID status is failed, I am afraid to say that the RAID structure is damaged or corrupted and due to this the system will not boot from it.
It seems that will be necessary to remove the array and create a new one since the RAID 10 does not allow to access the information on the Hard Disk Drive and save it.
So the conclusion is that Intel's RAID 10 does not survive failure of one disk. That is good to know. Tell me, does Intel's RAID 1 (simple mirroring) survive the failure of one disk?