Your question is RAID 5 vs RAID 6. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What is the difference between RAID 5 and RAID 6?
Explain the parity layout, usable capacity, write performance, and number of drive failures each level can tolerate. Include the operational risks of rebuilding large arrays and clarify whether RAID replaces backups.