Ceph坏盘
[Adding/Removing OSDs — Ceph Documentation](https://docs.ceph.com/en/nautilus/rados/operations/add-or-rm-osds/?highlight=removing osd#removing-the-osd)
[root@node1 my-cluster]# ceph osd tree
ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF
-1 0.14635 root default
-3 0.04878 host node1
0 hdd 0.01949 osd.0 up 1.00000 1.00000
3 hdd 0.02930 osd.3 up 1.00000 1.00000
-5 0.04878 host node2
1 hdd 0.01949 osd.1 up 1.00000 1.00000
4 hdd 0.02930 osd.4 up 1.00000 1.00000
-7 0.04878 host node3
2 hdd 0.01949 osd.2 up 1.00000 1.00000
5 hdd 0.02930 osd.5 up 1.00000 1.00000
# 查看 OSD 延迟状况,以防坏道情况拖垮 ceph 集群
[root@node1 my-cluster]# ceph osd perf
osd commit_latency(ms) apply_latency(ms)
5 0 0
4 0 0
0 0 0
1 0 0
2 0 0
3 0 0
# 删除步骤
ceph osd out {osd-num}
ceph osd crush remove {name}
ceph auth del osd.{osd-num}
ceph osd rm {osd-num}
#for example
ceph osd out osd.5
ceph osd crush remove osd.5
ceph auth del osd.5
ceph osd rm osd.5
来源:oschina
链接:https://my.oschina.net/u/4352371/blog/4830622