# ceph --version
ceph version 12.2.13 luminous (stable)
ceph osd tree
3 hdd 7.27739 osd.3 down 0 1.00000
cat /var/log/ceph/ceph-osd.3.log
systemctl status [email protected]
systemctl start [email protected]
3 hdd 7.27739 osd.3 up 1.00000 1.00000
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