failed to deploy osd/db on nvme with other db logical volume

[pubyun]

we have a running ceph, 17.2.7, with SATA OSD and DB on nvme.
we insert some SATA to host, and the status of new host is AVAILABLE.
then we apply the osd-spec.yml, it can't create the OSD automatically.

ceph orch device ls

HOST PATH TYPE DEVICE ID
SIZE AVAILABLE REJECT REASONS
h172-18-100-100 /dev/nvme0n1 ssd INTEL SSDPF2KX038TZ_PHAC1036009Z3P8AGN
3840G LVM detected, locked
h172-18-100-100 /dev/sdb hdd ST16000NM000G-2K_ZL2CB8ZR
16.0T Insufficient space (<10 extents) on vgs, LVM detected,
locked
h172-18-100-100 /dev/sdc hdd ST16000NM000G-2K_ZL2CB0J2
16.0T Insufficient space (<10 extents) on vgs, LVM detected,
locked
h172-18-100-100 /dev/sdd hdd ST16000NM000G-2K_ZL2CBFSF
16.0T Insufficient space (<10 extents) on vgs, LVM detected,
locked
h172-18-100-100 /dev/sde hdd ST16000NM000G-2K_ZL2CAYQB
16.0T Insufficient space (<10 extents) on vgs, LVM detected,
locked
h172-18-100-100 /dev/sdf hdd ST16000NM000G-2K_ZL2CBEMC
16.0T Yes
h172-18-100-100 /dev/sdg hdd ST16000NM000G-2K_ZL2C427J
16.0T Yes
h172-18-100-100 /dev/sdh hdd ST16000NM000G-2K_ZL2CAZCZ
16.0T Yes
h172-18-100-100 /dev/sdi hdd ST16000NM000G-2K_ZL2CBM7M
16.0T Yes

osd-spec.yml：

service_type: osd
service_id: osd-spec
placement:
host_pattern: '*'
spec:
objectstore: bluestore
block_db_size: 73014444032
data_devices:
rotational: 1
db_devices:
rotational: 0

ceph orch apply osd -i osd-spec.yml --dry-run

[pubyun]

here is some information:

ceph-volume sets DB device to unavailable, additional OSDs can not use the DB device
https://www.suse.com/support/kb/doc/?id=000019599

[pubyun]

we have can create and activate the OSD with:

ceph-volume lvm prepare --no-systemd --bluestore --data /dev/sdh
--block.db /dev/nvme0n1 --block.db-size 73014444032

we should ssh the host and execute the command for each OSD. if we have to
add many OSD, it will take lots of time.

[pubyun]

https://tracker.ceph.com/issues/49096
https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/KT5N7GBEWNWD34YX676GIYDL2RASVOFJ/

[pubyun]

https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/H7IZLQANIJJCOTVXKWB5TDCZ2MTKGEEX/

[dvanders]

Please send ceph questions to the ceph-users mailing list.