RAID5 failure in PowerEdge R630

Dear all,

again a new case of the well known problem of two discs failing in RAID5. I managed to make a lossless clone of one of the two lost discs using ddrescue. I am now going to import the foreign configuration as shown in the attached picture. This is where I have no experience of what is supposed to happen. I still have 4 discs as members of the array. Will the new drive just be added to them?

Any ideas ???