# ceph health detail              
HEALTH_ERR 1 full osd(s)
osd.2 is full at 95%

# ceph pg set_full_ratio .97

# ceph health detail
HEALTH_WARN 1 near full osd(s)
osd.2 is near full at 95%

# ceph pg set_full_ratio .90

# ceph health detail
HEALTH_ERR 1 full osd(s)
osd.2 is full at 95%