Hi, ceph -s reports an error in the ceph-mgr process. Looking at the logfile I see: Jun 30 16:07:09 al111 bash[171790]: debug 2021-06-30T14:07:09.939+0000 7f2a31d64700 -1 log_channel(cluster) log [ERR] : Unhandled exception from module 'devicehealth' while running on mgr.al111: 'NoneType' object has no attribute 'get' Jun 30 16:07:09 al111 bash[171790]: debug 2021-06-30T14:07:09.939+0000 7f2a31d64700 -1 devicehealth.serve: Jun 30 16:07:09 al111 bash[171790]: debug 2021-06-30T14:07:09.939+0000 7f2a31d64700 -1 Traceback (most recent call last): Jun 30 16:07:09 al111 bash[171790]: File "/usr/share/ceph/mgr/devicehealth/module.py", line 330, in serve Jun 30 16:07:09 al111 bash[171790]: self.scrape_all() Jun 30 16:07:09 al111 bash[171790]: File "/usr/share/ceph/mgr/devicehealth/module.py", line 390, in scrape_all Jun 30 16:07:09 al111 bash[171790]: self.put_device_metrics(ioctx, device, data) Jun 30 16:07:09 al111 bash[171790]: File "/usr/share/ceph/mgr/devicehealth/module.py", line 477, in put_device_metrics Jun 30 16:07:09 al111 bash[171790]: wear_level = get_ata_wear_level(data) Jun 30 16:07:09 al111 bash[171790]: File "/usr/share/ceph/mgr/devicehealth/module.py", line 33, in get_ata_wear_level Jun 30 16:07:09 al111 bash[171790]: if page.get("number") != 7: Jun 30 16:07:09 al111 bash[171790]: AttributeError: 'NoneType' object has no attribute 'get' This is a containerized Ceph 16.4.2. What is happening here? Regards -- Robert Sander Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin https://www.heinlein-support.de Tel: 030 / 405051-43 Fax: 030 / 405051-19 Amtsgericht Berlin-Charlottenburg - HRB 93818 B Geschäftsführer: Peer Heinlein - Sitz: Berlin