Do I need to submit all the drives that were in the RAID when it failed for data recovery?

Our Answer:

The answer is easy and unequivocal:  Yes.  When the data you need to recover has been sliced up into small segments and distributed in a sequence to each drive member comprising your array, all of the members must be available in order for any useful data to be rebuilt from the RAID.  No single hard drive within a RAID-5 contains even as much as one complete file – nothing but segments exist.  Except for RAID-1 the foregoing description is true for all RAID data storage subsystems, because all others employ data striping.  The story is different if you have a RAID-1, but generally, if you need to recover data from any other type of RAID, it is not possible without all the presence of all the array member elements.