Hi guys, I'll have a future Ceph deployment with the following setup : - 7 powerful nodes running Ceph 15.2.x with mon, rgw and osd daemons colocated - 100+ SATA drives with EC 4+2 - every OSD will have a large NVME partition (300GB) for rocksdb - the storage will be dedicated for rgw traffic using  Swift (no cephfs, no rbd) - we will probably have a lot of 4MB ceph objects (more than 400k millions) after the first year. Does it still matter to have the rgw index pool on dedicated SSD/NVME drives or it's good enough to spread it on many SATA drives with 3x replication and a large PG number ? Thanks.