Don't just copy the /var/lib/ceph directory because you cant be sure of the state of the database files. Original article 1service ceph stop mon 2tar czf /var/backups/ceph-mon-backup_$(date +'%a').tar.gz /var/lib/ceph/mon 3service ceph start mon

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1cinder::controller::settings:2DEFAULT:3rpc_backend:"rabbit"4my_ip:"%{::ipaddress_eth0}"5verbose:"True"6debug:"False"7auth_strategy:"keystone"8enabled_backends:"ceph_sas,ceph_sata"9glance_host:"%{hiera('glance::virtualIP')}"10volume_driver:"cinder.volu …

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After a reboot of my Ceph test VM's a few OSD's didnt come online. When running ceph osd tree I saw: 1[root@lib-cephosd1 ~]# ceph osd tree 2ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY 3 -1 0.29984 root default 4 -2 0.09995 host lib-cephosd1 5 1 0.00999 osd.1 up 1.00000 1.00000 6 0 0.00999 osd.0 up 1.00000 …

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ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-275/ --pgid 13.480 --op list | wc -l ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-263/ --pgid 13.480 --op export --file ~/pg-13.480-ss5-osd263.old ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-263/ --type bluestore --pgid 13.480 --op import …

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