[ovirt-users] Re: Gluster deployment fails with missing UUID

On April 30, 2020 12:31:59 PM GMT+03:00, Shareef Jalloq < shareef(a)jalloq.co.uk&gt; wrote: >Changing to /dev/mapper names seems to work but if anyone can tell me >why >the /dev/sd* naming is filtered that would help my understanding. > >On Thu, Apr 30, 2020 at 10:13 AM Shareef Jalloq <shareef(a)jalloq.co.uk&gt; >wrote: > >> Having no luck here. I've had a read on the LVM config usage and >there >> were no filters enabled in lvm.conf. I enabled debug logging and can >see >> the default global filter being applied. I then manually forced the >'all' >> fiter and 'pvcreate /dev/sdb' still tells me it is excluded by a >filter. >> The device section from 'lvmconfig' follows. What's wrong? >> >> devices { >> >> dir="/dev" >> >> scan="/dev" >> >> obtain_device_list_from_udev=1 >> >> external_device_info_source="none" >> >> preferred_names=["^/dev/mpath/","^/dev/mapper/mpath","^/dev/[hs]d"] >> >> filter="a|.*/|" >> >> cache_dir="/etc/lvm/cache" >> >> cache_file_prefix="" >> >> write_cache_state=1 >> >> sysfs_scan=1 >> >> scan_lvs=0 >> >> multipath_component_detection=1 >> >> md_component_detection=1 >> >> fw_raid_component_detection=0 >> >> md_chunk_alignment=1 >> >> data_alignment_detection=1 >> >> data_alignment=0 >> >> data_alignment_offset_detection=1 >> >> ignore_suspended_devices=0 >> >> ignore_lvm_mirrors=1 >> >> disable_after_error_count=0 >> >> require_restorefile_with_uuid=1 >> >> pv_min_size=2048 >> >> issue_discards=0 >> >> allow_changes_with_duplicate_pvs=1 >> >> } >> >> On Wed, Apr 29, 2020 at 6:21 PM Shareef Jalloq <shareef(a)jalloq.co.uk&gt; >> wrote: >> >>> Actually, now I've fixed that, indeed, the deployment now fails with >an >>> lvm filter error. I'm not familiar with filters but there aren't >any >>> uncommented instances of 'filter' in /etc/lvm/lvm.conf. >>> >>> >>> >>> On Wed, Apr 29, 2020 at 5:42 PM Shareef Jalloq &gt;&lt;shareef(a)jalloq.co.uk&gt; >>> wrote: >>> >>>> Ah of course. I was assuming something had gone wrong with the >>>> deployment and it couldn't clean up its own mess. I'll raise a bug >on the >>>> documentation. >>>> >>>> Strahil, what are the other options to using /dev/sdxxx? >>>> >>>> On Wed, Apr 29, 2020 at 10:17 AM Strahil Nikolov &gt;&lt;hunter86_bg(a)yahoo.com&gt; >>>> wrote: >>>> >>>>> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme <jaymef(a)gmail.com&gt; >wrote: >>>>> >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 &gt;&lt;shareef(a)jalloq.co.uk&gt; >>>>> >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} >>>>> >> _______________________________________________ >>>>> >> Users mailing list -- users(a)ovirt.org >>>>> >> To unsubscribe send an email to users-leave(a)ovirt.org >>>>> >> Privacy Statement: https://www.ovirt.org/privacy-policy.html >>>>> >> oVirt Code of Conduct: >>>>> >> https://www.ovirt.org/community/about/community-guidelines/ >>>>> >> List Archives: >>>>> >> >>>>> > >>>>> > https://lists.ovirt.org/archives/list/users@ovirt.org/message/5U3K3IPYCFO... >>>>> >> >>>>> >>>>> Actually best practice is not to use /dev/sdxxx as they can >change. >>>>> >>>>> In your case most peobably the LUN is not fresh, so wipe it with >>>>> dd/blktrim so any remnants of old FS signature is gone. >>>>> >>>>> Best Regards, >>>>> Strahil Nikolov >>>>> >>>> Do you use multipath or VDO ? In the Linux stack you should always use the top layer device. For example you might have something like this (formatting is hard to be done over e-mail) LV Lool LV VG PV /dev/mapper/VDO1 /dev/md0 /dev/mapper/mpatha /dev/sdb As you can see , in that case sdb is a path for mpatha , which is a raid device and that raid device is VDO device. In your case it could be something else. Best Regards, Strahil Nikolov _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/NO5XINMD4YL...