Describe the issue: We need to add information about enabling log to file for rbd mirroring daemon. Describe the task you were trying to accomplish: redirect rbd-mirroring daemon logs to log file Suggestions for improvement: We can add a note mentioning that if user wants to redirect rbd-mirror daemon logs to log file which is the default case, user needs to execute following commands # ceph config set global log_to_file true # ceph config set global mgr/mirroring/log_to_file 1 Also to configure log rotate won't work on the log file that gets created. https://access.redhat.com/solutions/3523011 has more information on why it doesn't happen. Document URL: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/5/html/block_device_guide/index Chapter/Section Number and Title: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/5/html/block_device_guide/mirroring-ceph-block-devices Product Version: 5.x Environment Details: NA Any other versions of this document that also needs this update: 4.x (information on logrotate.d might needs to be changed, it gets configured by cephadm in 5.x) Additional information: