Dear cephers, The upgrade has been successful and all cluster elements are running version 14.2.22 (including clients), and right now the cluster is HEALTH_OK, msgr2 is enabled and working properly. Following the upgrade guide from mimic to nautilus https://docs.ceph.com/en/latest/releases/nautilus/#upgrading-from-mimic-or-luminous Item 12: the change to straw-buckets-to-straw2. but it seems that my CRUSH map is older than HAMMER: Error EINVAL: new crush map requires client version hammer but require_min_compat_client is firefly And I can't enable this new straw2 enhancement. Is there any way to update the CRUSH, so Is there any way to make the change before the upgrade to Octopus? Best regards -- ===================================================== Ibán Cabrillo Bartolomé Instituto de Fisica de Cantabria (IFCA-CSIC) Santander, Spain Tel: +34942200969/+34669930421 Responsable del Servicio de Computación Avanzada ====================================================== _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx