On 27.12.2023 04:54, Phong Tran Thanh wrote:
Thank you for your knowledge. I have a question. Which pool is affected when the PG is down, and how can I show it? When a PG is down, is only one pool affected or are multiple pools affected?
If only 1 PG is down only 1 pool is affected. The name of a PG is {pool-num}.{pg-id} and the pools number you find with "ceph osd lspools". ceph health detail will show which PG is down and all other issues. ceph pg ls will show you all PG, their status and the OSD they are running on. Some useful links https://docs.ceph.com/en/quincy/rados/operations/monitoring-osd-pg/#monitori... https://docs.ceph.com/en/quincy/rados/troubleshooting/troubleshooting-pg/ https://docs.ceph.com/en/latest/dev/placement-group/#user-visible-pg-states -- Kai Stian Olstad