How to create a new pool with EC4+2 on hdd


Create the EC pool

ceph osd pool create <poolname> 32 32 erasure profile-4-2-hdd
ceph osd pool set <poolname> crush_rule ecrule-4-2-hdd


Create the metadata pool in replica3:


 ceph osd pool create metadata-<poolname> 32 32
 ceph osd pool set metadata-<poolname> crush_rule replicated_hdd