（1）查看集群状况，发明2个osd 状况为down
[[email protected] /]# ceph -s
cluster:
id: 58a12719-a5ed-4f95-b312-6efd6e34e558
health: HEALTH_ERR
noout flag(s) set
2 osds down
1 scrub errors
Possible data damage: 1 pg inconsistent
Degraded data redundancy: 1633/10191 objects degraded (16.024%), 84 pgs degraded, 122 pgs undersized
services:
mon: 2 daemons, quorum node140,node142 (age 3d)
mgr: admin(active, since 3d), standbys: node140
osd: 18 osds: 16 up (since 3d), 18 in (since 5d)
flags noout
data:
pools: 2 pools, 384 pgs
objects: 3.40k objects, 9.8 GiB
usage: 43 GiB used, 8.7 TiB / 8.7 TiB avail
pgs: 1633/10191 objects degraded (16.024%)
261 active+clean
84 active+undersized+degraded
38 active+undersized
1 active+clean+inconsistent /]# 
