Hi! i'm trying to estimate the size requiremenent for a wal+db volume for 26 TB HDD while trying to minimize the administrative hassle for configuration (meaning that i would prefer a wal+db volume not separate db from wal) (RGW usage, 3 node cluster) so, for a jbod that can go up to 44 drives (not all drives present, at most up to 12) i have 2x 6.4TB NVME AFAIU for metadata (db) device, i need raid as losing metadata, means losing the associated OSD .. did i get this right? So, what would the the best practice to map db+wal to hdd OSD? should i do a mdraid from the 2 nvme and that to split in 12 partitions? should i split the nvme ssd in 12 namespaces and make individual mdraid for each and that map to osds? For a 6.4 TB NVME (divided to 12) and 26 TB OSD, the db/wal would be ~533 GB, so around 2.05% .. how terrible is this number for RGW usage (i get that the recommended is 4%) At what size the data is in danger if db is too small and when it become safe but only with performance degradation? Thanks a lot!!! Adrian