Yes, I do not have vdb... I have sda sdb sdc sde sdd... and I believe it might have come from   journal_size: 16384 ? here is a part of conf file...
  CephAnsibleDiskConfig:
    devices:
      - /dev/sdc
      - /dev/sde
      - /dev/sdd
    osd_scenario: lvm
    osd_objectstore: bluestore
    journal_size: 16384 # commented this out now.

Yes, undercloud node cleaning is the first option I enable/configure in undercloud.conf ;) after that I configure IP addresses/subnets :)

On Mon, 21 Sep 2020 at 16:55, John Fulton <johfulto@redhat.com> wrote:
In [2] I see Error: Could not stat device /dev/vdb - No such file or directory.

/dev/vdb is the default and as per the logs it doesn't exist on your
HCI node. For your HCI node you need to have a block device (usually a
dedicated disk) which can be configured as an OSD and you need to pass
the path to it as described in the following section of the doc.

https://docs.openstack.org/project-deploy-guide/tripleo-docs/latest/features/ceph_config.html#configure-osd-settings-with-ceph-ansible

Also, ensure your disk is factory clean or the ceph tools won't
initialize it as an OSD. The easiest way to do this is to configure
ironic's automatic node cleaning.

  John


On Mon, Sep 21, 2020 at 9:45 AM Ruslanas Gžibovskis <ruslanas@lpic.lt> wrote:
>
> Hi all,
>
> using tripleo 13.4.0-1.el8 and ceph-ansible 4.0.25-1.el8 on CentOS8 from @centos-openstack-ussuri repo.
>
> but get [1] error. I thought it was due to not found python exec, but I saw later, when added verbosity 4, that it is able to find python3.
>
> It looks like output in paste.openstack.org is too short, not sure what was an issue, but here is a second place [2] for same full output
>
> [1] http://paste.openstack.org/show/i2XpSBiSVjuL69Ahm1sl/
> [2] https://proxy.qwq.lt/ceph-ansible.html
>
>
> --
> Ruslanas Gžibovskis
> +370 6030 7030



--
Ruslanas Gžibovskis
+370 6030 7030