Has the drive been used before, it might have existing partition/filesystem on it? If you are sure it's fine to overwrite try running wipefs -a /dev/sdb on all hosts. Also make sure there aren't any filters setup in lvm.conf (there shouldn't be on fresh install, but worth checking). 

On Tue, Apr 28, 2020 at 8:22 PM Shareef Jalloq <shareef@jalloq.co.uk> wrote:
Hi,

I'm running the gluster deployment flow and am trying to use a second drive as the gluster volume.  It's /dev/sdb on each node and I'm using the JBOD mode.

I'm seeing the following gluster ansible task fail and a google search doesn't bring up much.

TASK [gluster.infra/roles/backend_setup : Create volume groups] ****************

failed: [ovirt-gluster-01.jalloq.co.uk] (item={u'vgname': u'gluster_vg_sdb', u'pvname': u'/dev/sdb'}) => {"ansible_loop_var": "item", "changed": false, "err": "  Couldn't find device with uuid Y8FVs8-LP6w-R6CR-Yosh-c40j-17XP-ttP3Np.\n  Couldn't find device with uuid tA4lpO-hM9f-S8ci-BdPh-lTve-0Rh1-3Bcsfy.\n  Couldn't find device with uuid RG3w6j-yrxn-2iMw-ngd0-HgMS-i5dP-CGjaRk.\n  Couldn't find device with uuid lQV02e-TUZE-PXCd-GWEd-eGqe-c2xC-pauHG7.\n  Device /dev/sdb excluded by a filter.\n", "item": {"pvname": "/dev/sdb", "vgname": "gluster_vg_sdb"}, "msg": "Creating physical volume '/dev/sdb' failed", "rc": 5}

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