Hi guys. My SC8000 has a enclosure with 12 15K RPM disks for Tier 1. For 12 disks, 3 disks are defectives . So, only 9 disks are operative. Question: how many disks needs Tier 1 to work? I have read this link: https://www.dell.com/community/Compellent/Min-Max-disks-required-per-tier-for-SC8000-Sc4020/td-p/5034137 Minimum 6 disks? (5 disks + 1 spare). Thanks