12:31 p.m.
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>
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>
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 <shareef(a)jalloq.co.uk>
> 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 <hunter86_bg(a)yahoo.com>
>> wrote:
>>
>>> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme <jaymef(a)gmail.com>
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
<shareef(a)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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>>>
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
>>>
>>