I have 3 r720xd with 12 disk x 300Gb each one, 2 disk in raid 1 for OS , 10 disk in raid 0 for OSD, so I have 30 OSD.
I added pool and add as storage with pg_num 1024 followig this page https://ceph.com/pgcalc/
But the storage only have 2.58 Tb, I don't undestarnd why happed that, if I have...