[ovirt-users] Backup software recommendations

[Colin Coe]

Hi all

I'm looking for recommendations for backup software.  It needs to handle
physical and virtual Linux and Windows, RHV and Hyper-V.

It doesn't have to be open source and it doesn't have to be free.

The main features we need are:
- disk to disk backups
- inter-site replication with rate limiting
- be able to handle Linux thin volumes (think RHGS)
- support BMR ans granular file / directory restore
- correctly handle Windows VSS
- support RHEL point releases as soon as they are released

I'm as much after "stay away from" as recommendations.

We currently use Arcserve UDP and it is ... well ... sub optimal

Thanks in advance

CC
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[ovirt-users] Re: Running Host on sudo user

[carl langlois]

Hi,
Yes this is exactly what i did.
Thanks for the inputs and the support.

Carl


On Thu, Apr 30, 2020 at 10:32 AM Strahil Nikolov 
wrote:

> On April 29, 2020 7:56:10 PM GMT+03:00, Sandro Bonazzola <
> sbona...@redhat.com> wrote:
> >Il giorno mar 7 apr 2020 alle ore 16:33 carl langlois <
> >crl.langl...@gmail.com> ha scritto:
> >
> >> Hi,
> >>
> >> I was wandering if it is possible to run ovirt node using a sudo user
> >> instead of the root user?
> >> Let says i want or need to disable root ssh login..
> >>
> >
> >This is not supported right now.
> >
> >
> >>
> >> Thanks and regards.
> >>
> >> Carl
> >> ___
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> >>
> >
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/7BELLOX2C2D3FSNKP3TQIRBMHDNIOWTL/
> >>
>
> Hi Carl,
>
> I guess you can deny root in general and use the 'Match '  to allow
> ssh for the root user from specific nodes (for example the engine).
>
> Of course , you should test it on a test cluster before implemwnting on
> production.
>
> Best Regards,
> Strahil Nikolov
>
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[ovirt-users] Re: Gluster deployment fails with missing UUID

[Strahil Nikolov]

On April 30, 2020 12:31:59 PM GMT+03:00, Shareef Jalloq  
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 
>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 
>> 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
>
>>> 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
>
 wrote:

> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme 
>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
>
> >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@ovirt.org
> >> To unsubscribe send an email to users-le...@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/5U3K3IPYCFOLUFJ56FGJI3TYWT6NOLAZ/
> >>
>
> 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

[ovirt-users] Re: Engine UI exception while viewing unattached hosts in Network tab

[Shareef Jalloq]

Ah, got it.  Cheers.  Hopefully this makes more sense to someone than it
does me.  :-)

2020-04-30 13:12:56,198Z ERROR
[org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
(default task-11) [] Permutation name: C03D9459880E029D11B67EC22A1958E6

2020-04-30 13:12:56,199Z ERROR
[org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
(default task-11) [] Uncaught exception:
com.google.gwt.core.client.JavaScriptException: (TypeError) : Cannot read
property 'N' of null

at
org.ovirt.engine.ui.webadmin.section.main.view.tab.network.SubTabNetworkHostView$6.$getValue(SubTabNetworkHostView.java:125)

at
org.ovirt.engine.ui.webadmin.section.main.view.tab.network.SubTabNetworkHostView$6.getValue(SubTabNetworkHostView.java:125)

at
com.google.gwt.user.cellview.client.Column.render(Column.java:164)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.AbstractCellTableBuilder.$renderCell(AbstractCellTableBuilder.java:188)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.DefaultCellTableBuilder.$buildRowImpl(DefaultCellTableBuilder.java:62)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.AbstractCellTableBuilder.$buildRow(AbstractCellTableBuilder.java:85)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.AbstractCellTable.$buildRowValues(AbstractCellTable.java:2350)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.AbstractCellTable.replaceAllChildren(AbstractCellTable.java:2149)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.AbstractHasData$View.replaceAllChildren(AbstractHasData.java:265)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.HasDataPresenter.$resolvePendingState(HasDataPresenter.java:1062)
[gwt-servlet.jar:]

at
com.google.gwt.user.cellview.client.HasDataPresenter$2.execute(HasDataPresenter.java:981)
[gwt-servlet.jar:]

at
com.google.gwt.core.client.impl.SchedulerImpl.runScheduledTasks(SchedulerImpl.java:167)
[gwt-servlet.jar:]

at
com.google.gwt.core.client.impl.SchedulerImpl.$flushFinallyCommands(SchedulerImpl.java:272)
[gwt-servlet.jar:]

at com.google.gwt.core.client.impl.Impl.exit(Impl.java:313)
[gwt-servlet.jar:]

at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:275)
[gwt-servlet.jar:]

at Unknown.eval(webadmin-0.js)

at Unknown.d(webadmin-0.js)

On Thu, Apr 30, 2020 at 3:57 PM Strahil Nikolov 
wrote:

> On April 30, 2020 4:14:13 PM GMT+03:00, Shareef Jalloq <
> shar...@jalloq.co.uk> wrote:
> >Hi,
> >
> >I'm following the Gluster setup blog post (
> >
> https://blogs.ovirt.org/2018/02/up-and-running-with-ovirt-4-2-and-gluster-storage/
> )
> >and am at the 'Storage network' section.
> >
> >I've created a new 'gluster' network, selected the network and
> >navigated to
> >the 'Hosts' tab.  The guide tells you to click the 'Unattached' button
> >and
> >then 'Setup Host Networks' for each host.  However, clicking the
> >'Unattached' button fires off a bunch of exceptions rather than
> >displaying
> >my 3 hosts.  The message is:
> >
> >"Uncaught exception occurred. Please try reloading the page. Details:
> >(TypeError) : Cannot read property 'N' of null
> >Please have your administrator check the UI logs"
> >
> >Anyone seen this before?  Where is the UI log located?
> >
> >Shareef.
>
> UI log is on the Engine , no matter bare metal or HostedEngine.
>
> Best Regards,
> Strahil Nikolov
>
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[ovirt-users] Re: Gluster deployment fails with missing UUID

[Shareef Jalloq]

It's running now using the /dev/mapper/by-id name so I'll just stick with
that and use this in the future.  Thanks.

On Thu, Apr 30, 2020 at 3:43 PM Strahil Nikolov 
wrote:

> On April 29, 2020 8:21:58 PM GMT+03:00, Shareef Jalloq <
> shar...@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 
> >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
> >
> >> wrote:
> >>
> >>> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme 
> >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
> >
> >>> >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@ovirt.org
> >>> >> To unsubscribe send an email to users-le...@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/5U3K3IPYCFOLUFJ56FGJI3TYWT6NOLAZ/
> >>> >>
> >>>
> >>> 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
> >>>
> >>
>
> Can you get a debug output from ansible ?
> I haven't deployed oVirt recently.
>
> Best Regards,
> Strahil Nikolov
>
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[ovirt-users] Re: Engine UI exception while viewing unattached hosts in Network tab

[Strahil Nikolov]

On April 30, 2020 4:14:13 PM GMT+03:00, Shareef Jalloq  
wrote:
>Hi,
>
>I'm following the Gluster setup blog post (
>https://blogs.ovirt.org/2018/02/up-and-running-with-ovirt-4-2-and-gluster-storage/)
>and am at the 'Storage network' section.
>
>I've created a new 'gluster' network, selected the network and
>navigated to
>the 'Hosts' tab.  The guide tells you to click the 'Unattached' button
>and
>then 'Setup Host Networks' for each host.  However, clicking the
>'Unattached' button fires off a bunch of exceptions rather than
>displaying
>my 3 hosts.  The message is:
>
>"Uncaught exception occurred. Please try reloading the page. Details:
>(TypeError) : Cannot read property 'N' of null
>Please have your administrator check the UI logs"
>
>Anyone seen this before?  Where is the UI log located?
>
>Shareef.

UI log is on the Engine , no matter bare metal or HostedEngine.

Best Regards,
Strahil Nikolov
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[ovirt-users] Re: Gluster deployment fails with missing UUID

[Strahil Nikolov]

On April 29, 2020 8:21:58 PM GMT+03:00, Shareef Jalloq  
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 
>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
>
>> wrote:
>>
>>> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme 
>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
>
>>> >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@ovirt.org
>>> >> To unsubscribe send an email to users-le...@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/5U3K3IPYCFOLUFJ56FGJI3TYWT6NOLAZ/
>>> >>
>>>
>>> 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
>>>
>>

Can you get a debug output from ansible ?
I haven't deployed oVirt recently.

Best Regards,
Strahil Nikolov
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[ovirt-users] Re: Gluster deployment fails with missing UUID

[Strahil Nikolov]

On April 29, 2020 7:42:55 PM GMT+03:00, Shareef Jalloq  
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
>
>wrote:
>
>> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme 
>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
>
>> >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@ovirt.org
>> >> To unsubscribe send an email to users-le...@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/5U3K3IPYCFOLUFJ56FGJI3TYWT6NOLAZ/
>> >>
>>
>> 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
>>

Hi Schareef,

In general we should use persistent names like '/dev/disk/by-id/scsi-XYZ or 
/dev/disk/by-id/wwn-XYZ if we want to be idempotent (be able to rerun the 
ansible play/role multiple times /even after a reboot/).

For  example ,  I make an array of all available disks with the exclusion of 
the system disk (filtering disks with partitions) and then use those as PVs in 
a VG and then everything else  is easy.

If you need  to separate the disks by size  (multiple  VGs), you can sort the 
array and then select which disk to be a PV for a specific VG.
Aanother approach is to filter the disks by vendor or type and then create your 
VGs with ansible.

Anyway, for initial deployment /dev/sdXYZ is enough.


Best Regards,
Strahil Nikolov
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[ovirt-users] Unable to remove system roles from Everyone group

[miguel . garcia]

I opened Everyone group and added system role UserRole and realized now that 
everybody can see all VMS which is not good. I tried to remove the role from 
the group but got the error "Error while executing action: It's not allowed to 
remove system permissions assigned to built-in Everyone group"

Looking into Ovirt forums I see that this change should be made through the 
engine database but I was not able to reach that part.

Can someone help me out how to remove the system role from Everyone group? or 
at least reset the group?
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[ovirt-users] Re: Running Host on sudo user

[Strahil Nikolov]

On April 29, 2020 7:56:10 PM GMT+03:00, Sandro Bonazzola  
wrote:
>Il giorno mar 7 apr 2020 alle ore 16:33 carl langlois <
>crl.langl...@gmail.com> ha scritto:
>
>> Hi,
>>
>> I was wandering if it is possible to run ovirt node using a sudo user
>> instead of the root user?
>> Let says i want or need to disable root ssh login..
>>
>
>This is not supported right now.
>
>
>>
>> Thanks and regards.
>>
>> Carl
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>>
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>>

Hi Carl,

I guess you can deny root in general and use the 'Match '  to allow ssh for 
the root user from specific nodes (for example the engine).

Of course , you should test it on a test cluster before implemwnting on 
production.

Best Regards,
Strahil Nikolov
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[ovirt-users] Re: Can we agree on adding reference to version in help request email?

[Strahil Nikolov]

On April 29, 2020 7:27:35 PM GMT+03:00, Gianluca Cecchi 
 wrote:
>On Wed, Apr 29, 2020 at 4:01 PM Sandro Bonazzola 
>wrote:
>
>> Hi,
>> I was looking in the past 2 weeks email landing on this mailing list
>and a
>> common thing I notice is that it's hard to understand which version
>of the
>> involved software they're referring too.
>> Can we agree on adding at the top of the message a couple of line
>like
>> output of
>>
>>  yum -q list installed centos-release ovirt-release\* ovirt-engine
>> redhat-release vdsm glusterfs
>>
>> centos-release.x86_64 7-7.1908.0.el7.centos
>> glusterfs.x86_64 6.8-1.el7
>> ovirt-engine.noarch 4.3.9.4-1.el7
>> ovirt-release43.noarch 4.3.9-1.el7
>>
>> It will help understanding if the help request is something that may
>be
>> already known, a regression, and so on.
>>
>> --
>>
>> Sandro Bonazzola
>>
>>
>I completely agree with you, Sandro.
>
>Gianluca

Hi Sandro,

I think it is reasonable.

Best Regards,
Strahil Nikolov
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[ovirt-users] Engine UI exception while viewing unattached hosts in Network tab

[Shareef Jalloq]

Hi,

I'm following the Gluster setup blog post (
https://blogs.ovirt.org/2018/02/up-and-running-with-ovirt-4-2-and-gluster-storage/)
and am at the 'Storage network' section.

I've created a new 'gluster' network, selected the network and navigated to
the 'Hosts' tab.  The guide tells you to click the 'Unattached' button and
then 'Setup Host Networks' for each host.  However, clicking the
'Unattached' button fires off a bunch of exceptions rather than displaying
my 3 hosts.  The message is:

"Uncaught exception occurred. Please try reloading the page. Details:
(TypeError) : Cannot read property 'N' of null
Please have your administrator check the UI logs"

Anyone seen this before?  Where is the UI log located?

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

[Shareef Jalloq]

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 
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 
> 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 
>> 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 
>>> wrote:
>>>
 On April 29, 2020 2:39:05 AM GMT+03:00, Jayme  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 
 >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://www.ovirt.org/community/about/community-guidelines/
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 >>
 >
 https://lists.ovirt.org/archives/list/users@ovirt.org/message/5U3K3IPYCFOLUFJ56FGJI3TYWT6NOLAZ/
 >>

 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

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

[Shareef Jalloq]

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  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 
> 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 
>> wrote:
>>
>>> On April 29, 2020 2:39:05 AM GMT+03:00, Jayme  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 
>>> >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@ovirt.org
>>> >> To unsubscribe send an email to users-le...@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/5U3K3IPYCFOLUFJ56FGJI3TYWT6NOLAZ/
>>> >>
>>>
>>> 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
>>>
>>
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[ovirt-users] Re: Add custom Network Filter to oVirt

[Hendrik Peyerl]

> 
> No.
> What could oVirt do, to make this flow more comfortable?

The dream would be to have a feature to upload xml files with the new rule(s) 
via the webinterface of oVirt or via the API.
I always feel a little uncomfortable doing changes to libvirt outside of ovirt 
as I am not sure if an update would overwrite my changes.



> On 30. Apr 2020, at 09:19, Dominik Holler  wrote:
> 
> 
> 
> On Thu, Apr 30, 2020 at 8:43 AM Hendrik Peyerl  wrote:
> Thank you Dominik, are there any plans to add such a feature in the future?
>  
> Thanks,
> Hendrik
> 
> > On 29. Apr 2020, at 21:25, Dominik Holler  wrote:
> > 
> > 
> > 
> > On Wed, Apr 29, 2020 at 6:40 PM Sandro Bonazzola  
> > wrote:
> > 
> > 
> > Il giorno mer 29 apr 2020 alle ore 15:35 Hendrik Peyerl 
> >  ha scritto:
> > Hello all,
> > 
> > can anyone give me a hint on where to find documentation on how to add 
> > custom created network filters through oVirt?
> > 
> > +Dominik Holler have you any link at hand for this?
> >  
> > 
> > Custom network filters are not supported and documented, but should work.
> > Probably you are already aware of
> > https://libvirt.org/formatnwfilter.html
> > which describes how to add a network filter for libvirt on a single host.
> > 
> > oVirt does not help to distribute the custom network filters for libvirt to 
> > the hosts,
> > it is up to the user to ensure that the custom network filter is available 
> > to libvirt on all oVirt hosts.
> > 
> > To enable oVirt to use a custom network filter of libvirt, its name has to 
> > be added to oVirt's database to the table
> > network_filter
> > manually.
> > 
> >  
> > 
> > 
> > Thanks,
> > 
> > Hendrik
> > ___
> > Users mailing list -- users@ovirt.org
> > To unsubscribe send an email to users-le...@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/O57QAOTVOLKXNYZBTEVQNIZ75EDVMZRV/
> > 
> > 
> > -- 
> > Sandro Bonazzola
> > MANAGER, SOFTWARE ENGINEERING, EMEA R RHV
> > Red Hat EMEA
> > sbona...@redhat.com   
> > 
> > 
> > Red Hat respects your work life balance. Therefore there is no need to 
> > answer this email out of your office hours.
> 
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[ovirt-users] Re: Add custom Network Filter to oVirt

[Dominik Holler]

On Thu, Apr 30, 2020 at 8:43 AM Hendrik Peyerl  wrote:

> Thank you Dominik, are there any plans to add such a feature in the future?
>
>
No.
What could oVirt do, to make this flow more comfortable?


> Thanks,
> Hendrik
>
> > On 29. Apr 2020, at 21:25, Dominik Holler  wrote:
> >
> >
> >
> > On Wed, Apr 29, 2020 at 6:40 PM Sandro Bonazzola 
> wrote:
> >
> >
> > Il giorno mer 29 apr 2020 alle ore 15:35 Hendrik Peyerl <
> hpey...@plusline.net> ha scritto:
> > Hello all,
> >
> > can anyone give me a hint on where to find documentation on how to add
> custom created network filters through oVirt?
> >
> > +Dominik Holler have you any link at hand for this?
> >
> >
> > Custom network filters are not supported and documented, but should work.
> > Probably you are already aware of
> > https://libvirt.org/formatnwfilter.html
> > which describes how to add a network filter for libvirt on a single host.
> >
> > oVirt does not help to distribute the custom network filters for libvirt
> to the hosts,
> > it is up to the user to ensure that the custom network filter is
> available to libvirt on all oVirt hosts.
> >
> > To enable oVirt to use a custom network filter of libvirt, its name has
> to be added to oVirt's database to the table
> > network_filter
> > manually.
> >
> >
> >
> >
> > Thanks,
> >
> > Hendrik
> > ___
> > Users mailing list -- users@ovirt.org
> > To unsubscribe send an email to users-le...@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/O57QAOTVOLKXNYZBTEVQNIZ75EDVMZRV/
> >
> >
> > --
> > Sandro Bonazzola
> > MANAGER, SOFTWARE ENGINEERING, EMEA R RHV
> > Red Hat EMEA
> > sbona...@redhat.com
> >
> >
> 
> > Red Hat respects your work life balance. Therefore there is no need to
> answer this email out of your office hours.
>
>
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[ovirt-users] Re: Move Hosted Engine VM to a different storage domain

[Yedidyah Bar David]

On Wed, Apr 29, 2020 at 8:42 AM Anton Louw 
wrote:

>
>
> Hi,
>
>
>
> Thank you for the reply. I am building another environment today, so I
> will run through the backup and restore again. I do recall one issue I had
> with the restore was that it gave an error that one of the storage domains
> were already in use. This was a new storage domain I added, with no VMs on.
>
>
>
> I just want to make sure, I probably cannot deploy the HE on a storage
> domain that is in maintenance, correct? I will try and create a new storage
> domain again, but remove it from the data center, and perhaps see if the HE
> will deploy to it.
>

hosted-engine deploy does not require an "empty storage domain" (in
maintenance or not), but one that "does not exist yet" - meaning, a path to
storage that will be used as a storage domain, but in which a storage
domain was not created yet. The deploy process itself will create the
domain there.

I hope this clarifies.


>
>
> The main goal was to have no downtime, but if it is going to be too
> complex, I think my next option will be to create a new HE, and attach the
> current storage domains. Obviously it is going to take a bit of planning,
> as I will need to configure all the networks etc. from scratch again.
>

Good luck and keep us updated!

Best regards,


>
>
> Thanks
>
>
>
> *Anton Louw*
> *Cloud Engineer: Storage and Virtualization* at *Vox*
> --
> *T:*  087 805  | *D:* 087 805 1572
> *M:* N/A
> *E:* anton.l...@voxtelecom.co.za
> *A:* Rutherford Estate, 1 Scott Street, Waverley, Johannesburg
> www.vox.co.za
>
> [image: F] 
> [image: T] 
> [image: I] 
> [image: L] 
> [image: Y] 
>
> *From:* Strahil Nikolov 
> *Sent:* 26 April 2020 08:55
> *To:* Yedidyah Bar David ; Anton Louw <
> anton.l...@voxtelecom.co.za>
> *Cc:* users@ovirt.org
> *Subject:* Re: [ovirt-users] Re: Move Hosted Engine VM to a different
> storage domain
>
>
>
> On April 26, 2020 9:39:07 AM GMT+03:00, Yedidyah Bar David <
> d...@redhat.com> wrote:
> >On Fri, Apr 24, 2020 at 1:04 PM Anton Louw
> >
> >wrote:
> >
> >>
> >>
> >> Hi All,
> >>
> >>
> >>
> >> I know this question has been asked before, by myself included. I was
> >> hoping that someone has run through the exercise of moving the hosted
> >> engine VM to a different storage domain. I have tried many routes,
> >but the
> >> backup and restore does not work for me.
> >>
> >
> >The "standard answer" is backup and restore. Why does it not work?
> >
> >
> >>
> >>
> >> Is there anybody that can perhaps give me some guidelines or a
> >process I
> >> can follow?
> >>
> >
> >I didn't try that myself.
> >
> >The best guidelines I can give you are: Try first on at a test system.
> >Do
> >the backup on the real machine, create some isolated VM (isolated so
> >that
> >it does not interfere with your hosts/storage) somewhere to be used as
> >a
> >test host (or a physical machine if you have one), some storage
> >somewhere,
> >and restore on it. Make it work. Document what you needed to do. Ask
> >here
> >with specific questions if/when you have them. Then do on the
> >production
> >setup.
> >
> >Also clarify your needs. Do you need no-downtime for the VMs? If so,
> >that's
> >more complex. If you don't, it might be enough/simpler to deploy a new
> >setup and just import the existing storage. Do you have HA VMs? etc.
> >
> >
> >>
> >>
> >> The reason I need to move the HE VM is because we are decommissioning
> >the
> >> current storage array where the HE VM is located.
> >>
> >
> >Good luck!
> >
> >Best regards,
> >
> >
> >>
> >>
> >> Thank you very much
> >>
> >> *Anton Louw*
> >> *Cloud Engineer: Storage and Virtualization* at *Vox*
> >> --
> >> *T:* 087 805  | *D:* 087 805 1572
> >> *M:* N/A
> >> *E:* anton.l...@voxtelecom.co.za
> >> *A:* Rutherford Estate, 1 Scott Street, Waverley, Johannesburg
> >> www.vox.co.za
> >>
> >> [image: F] 
> >> [image: T] 
> >> [image: I] 
> >> [image: L] 
> >> [image: Y] 
> >>
> >> [image: #VoxBrand]
> >> 
> >> *Disclaimer*
> >>
> >> The contents of this email are confidential to the sender and the
> >intended
> >> recipient. Unless the contents are clearly and entirely of a personal
> >> nature, they are subject to copyright in favour of the holding
> >company of
> >> the Vox group of companies. Any recipient who receives this email in
> >error
> >> should immediately report the error to the sender and permanently
> >delete
> >> this email from all storage devices.
> >>
> >> This email has been scanned for viruses 

[ovirt-users] Re: Add custom Network Filter to oVirt

[Hendrik Peyerl]

Thank you Dominik, are there any plans to add such a feature in the future?

Thanks,
Hendrik

> On 29. Apr 2020, at 21:25, Dominik Holler  wrote:
> 
> 
> 
> On Wed, Apr 29, 2020 at 6:40 PM Sandro Bonazzola  wrote:
> 
> 
> Il giorno mer 29 apr 2020 alle ore 15:35 Hendrik Peyerl 
>  ha scritto:
> Hello all,
> 
> can anyone give me a hint on where to find documentation on how to add custom 
> created network filters through oVirt?
> 
> +Dominik Holler have you any link at hand for this?
>  
> 
> Custom network filters are not supported and documented, but should work.
> Probably you are already aware of
> https://libvirt.org/formatnwfilter.html
> which describes how to add a network filter for libvirt on a single host.
> 
> oVirt does not help to distribute the custom network filters for libvirt to 
> the hosts,
> it is up to the user to ensure that the custom network filter is available to 
> libvirt on all oVirt hosts.
> 
> To enable oVirt to use a custom network filter of libvirt, its name has to be 
> added to oVirt's database to the table
> network_filter
> manually.
> 
>  
> 
> 
> Thanks,
> 
> Hendrik
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> Red Hat EMEA
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> 
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