# ceph health detail
HEALTH_WARN Reduced data availability: 2 pgs inactive
[WRN] PG_AVAILABILITY: Reduced data availability: 2 pgs inactive
    pg 3.0 is stuck inactive for 4d, current state unknown, last acting []
    pg 3.f is stuck inactive for 4d, current state unknown, last acting []

# ceph pg dump_stuck unclean
PG_STAT  STATE    UP  UP_PRIMARY  ACTING  ACTING_PRIMARY
3.0      unknown  []          -1      []              -1
3.f      unknown  []          -1      []              -1

# ceph osd force-create-pg 3.0 --yes-i-really-mean-it
pg 3.0 now creating, ok

# ceph osd force-create-pg 3.f --yes-i-really-mean-it
pg 3.f now creating, ok