Dear Cephers, I went through some of the OSD logs of our 14.2.4 nodes and found this: ---------------------------------- Nov 01 01:22:25 sudo[1087697]: ceph : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/sbin/smartctl -a --json /dev/sds Nov 01 01:22:51 sudo[1087729]: pam_unix(sudo:auth): conversation failed Nov 01 01:22:51 sudo[1087729]: pam_unix(sudo:auth): auth could not identify password for [ceph] Nov 01 01:22:51 sudo[1087729]: pam_succeed_if(sudo:auth): requirement "uid >= 1000" not met by user "ceph" Nov 01 01:22:53 sudo[1087729]: ceph : command not allowed ; TTY=unknown ; PWD=/ ; USER=root ; COMMAND=nvme lvm smart-log-add --json /dev/sds ---------------------------------- It seems with device health metrics, the OSDs try to run smartctl with "sudo", which expectedly fails, since the Ceph user (as system user) has a uid smaller than 1000. Also, it's of course not in /etc/sudoers. Does somebody have a working setup with device health metrics which could be shared (and documented, or made part of future packaging ;-) ) ? Cheers, Oliver