ceph 通过 crush rule 修改故障域
创建故障域为 osd 的 crush rule
ceph osd crush rule create-replicated replicated_osd_level default osd
设置 pool 使用新创建的 crush rule
ceph osd pool set ceph-filesystem-data0 crush_rule replicated_osd_level
查看有哪些 crush rule
ceph osd crush rule list
查看具体 crush rule 内容
ceph osd crush rule dump replicated_osd_level
{"rule_id":