Hi, I completely overread this, but I just found out that osd_crush_location_hook was renamed to crush_location_hook in the new config style. When upgrading from Jewel to Luminous without touching your configuration OSDs will move to the default CRUSH location due to the hook not being executed. Was this an oversight with Luminous or was it intentional? Wido -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html