Yes i understand this completely. What was wrong from my side was that after i formatted the disk to xfs and i have been informed that parity dont care about filesystem, that my disk will be rebuild from parity. This was my mistake...
Just an update after i have format disk3 to xfs data rebuild ,since this was a mistake i have formatted back to reiserfs and runned(at the moment is at pass3 and i see that starts to recover my files one by one.finger crossed i will inform about result and how to proceed ) reiserfsck --rebuild-tree -S /dev/md3