On Tue, Oct 1, 2019 at 11:27 AM Guillaume Pavese <
guillaume.pavese(a)interactiv-group.com> wrote:
Hi all,
Sorry for asking again :/
Is there any consensus on not using --emulate512 anymore while creating
VDO volumes on Gluster?
Since this parameter can not be changed once the volume is created and we
are nearing production setup. I would really like to have an official
advice on this.
Best,
Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group
Hello Guillaume Pavese,
If you are not using --emulate512 for VDO volume, then VDO
volume will be
created
as 4K Native volume (with 4K block size).
There are couple of things that bothers here:
1. 4K Native device support requires fixes at QEMU that will be part of
CentOS 7.7.2 ( not yet available )
2. 4K Native support with VDO volumes on Gluster is not yet validated
thoroughly.
Based on the above items, it would be better you have emulate512=on or delay
your production setup ( if possible, till above both items are addressed )
to make use of 4K VDO volume.
@Sahina Bose <sabose(a)redhat.com> Do you have any other suggestions ?
-- Satheesaran S (sas)
On Fri, Sep 27, 2019 at 3:19 PM Sandro Bonazzola <sbonazzo(a)redhat.com>
wrote:
>
>
> Il giorno ven 27 set 2019 alle ore 05:21 Guillaume Pavese <
> guillaume.pavese(a)interactiv-group.com> ha scritto:
>
>> I see that oVirt 4.3.6 finally has 4k domain support.
>>
>> - Would that mean that VDO enabled Gluster domains will be created
>> without the --emulate512 workaround?
>> - If the wizard to create the Gluster volumes has not yet removed that
>> parameter, is it safe to edit & remove it manually before creation?
>> - Should we expect performance increase by using the native 4k block
>> size of VDO?
>>
>>
>
> +Nir Soffer <nsoffer(a)redhat.com> +Sundaramoorthi, Satheesaran
> <sasundar(a)redhat.com> +Gobinda Das <godas(a)redhat.com> can you answer
> here?
>
>
>
>> Thanks
>>
>> Guillaume Pavese
>> Ingénieur Système et Réseau
>> Interactiv-Group
>>
>>
>> On Fri, Sep 27, 2019 at 12:00 AM Sandro Bonazzola <sbonazzo(a)redhat.com>
>> wrote:
>>
>>> The oVirt Project is pleased to announce the general availability of
>>> oVirt 4.3.6 as of September 26th, 2019.
>>>
>>>
>>>
>>> This update is the sixth in a series of stabilization updates to the
>>> 4.3 series.
>>>
>>>
>>>
>>> This release is available now on x86_64 architecture for:
>>>
>>> * Red Hat Enterprise Linux 7.7 or later (but < 8)
>>>
>>> * CentOS Linux (or similar) 7.7 or later (but < 8)
>>>
>>>
>>>
>>> This release supports Hypervisor Hosts on x86_64 and ppc64le
>>> architectures for:
>>>
>>> * Red Hat Enterprise Linux 7.7 or later (but < 8)
>>>
>>> * CentOS Linux (or similar) 7.7 or later (but < 8)
>>>
>>> * oVirt Node 4.3 (available for x86_64 only)
>>>
>>>
>>>
>>> Due to Fedora 28 being now at end of life this release is missing
>>> experimental tech preview for x86_64 and s390x architectures for Fedora 28.
>>>
>>> We are working on Fedora 29 and 30 support and we may re-introduce
>>> experimental support for Fedora in next release.
>>>
>>>
>>>
>>> See the release notes [1] for installation / upgrade instructions and a
>>> list of new features and bugs fixed.
>>>
>>>
>>>
>>> Notes:
>>>
>>> - oVirt Appliance is already available
>>>
>>> - oVirt Node is already available[2]
>>>
>>> oVirt Node and Appliance have been updated including:
>>>
>>> - oVirt 4.3.6:
http://www.ovirt.org/release/4.3.6/
>>>
>>> - Wildfly 17.0.1:
>>>
https://wildfly.org/news/2019/07/07/WildFly-1701-Released/
>>>
>>> - Latest CentOS 7.7 updates including:
>>>
>>> -
>>>
>>> Release for CentOS Linux 7 (1908) on the x86_64 Architecture
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023405....
>>> -
>>>
>>> CEBA-2019:2601 CentOS 7 NetworkManager BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023423....
>>>
>>> -
>>>
>>> CEBA-2019:2023 CentOS 7 efivar BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023445....
>>> -
>>>
>>> CEBA-2019:2614 CentOS 7 firewalld BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023412....
>>> -
>>>
>>> CEBA-2019:2227 CentOS 7 grubby BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023441....
>>> -
>>>
>>> CESA-2019:2258 Moderate CentOS 7 http-parser Security Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023439....
>>> -
>>>
>>> CESA-2019:2600 Important CentOS 7 kernel Security Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023444....
>>> -
>>>
>>> CEBA-2019:2599 CentOS 7 krb5 BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023420....
>>> -
>>>
>>> CEBA-2019:2358 CentOS 7 libguestfs BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023421....
>>> -
>>>
>>> CEBA-2019:2679 CentOS 7 libvirt BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023422....
>>> -
>>>
>>> CEBA-2019:2501 CentOS 7 rsyslog BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023431....
>>> -
>>>
>>> CEBA-2019:2355 CentOS 7 selinux-policy BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023432....
>>> -
>>>
>>> CEBA-2019:2612 CentOS 7 sg3_utils BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023433....
>>> -
>>>
>>> CEBA-2019:2602 CentOS 7 sos BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023434....
>>>
>>> -
>>>
>>> CEBA-2019:2564 CentOS 7 subscription-manager BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023435....
>>> -
>>>
>>> CEBA-2019:2356 CentOS 7 systemd BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023436....
>>> -
>>>
>>> CEBA-2019:2605 CentOS 7 tuned BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023437....
>>> -
>>>
>>> CEBA-2019:2871 CentOS 7 tzdata BugFix Update
>>>
<
https://lists.centos.org/pipermail/centos-announce/2019-September/023450....
>>>
>>> - latest CentOS Virt and Storage SIG updates:
>>>
>>> -
>>>
>>> Ansible 2.8.5:
>>>
https://github.com/ansible/ansible/blob/stable-2.8/changelogs/CHANGELOG-v...
>>> -
>>>
>>> Glusterfs 6.5:
https://docs.gluster.org/en/latest/release-notes/6.5/
>>>
>>> -
>>>
>>> QEMU KVM EV 2.12.0-33.1 :
>>>
https://cbs.centos.org/koji/buildinfo?buildID=26484
>>>
>>>
>>>
>>>
>>> Given the amount of security fixes provided by this release, upgrade is
>>> recommended as soon as practical.
>>>
>>> Additional Resources:
>>>
>>> * Read more about the oVirt 4.3.6 release highlights:
>>>
http://www.ovirt.org/release/4.3.6/
>>>
>>> * Get more oVirt Project updates on Twitter:
https://twitter.com/ovirt
>>>
>>> * Check out the latest project news on the oVirt blog:
>>>
http://www.ovirt.org/blog/
>>>
>>>
>>>
>>> [1]
http://www.ovirt.org/release/4.3.6/
>>> [2]
http://resources.ovirt.org/pub/ovirt-4.3/iso/
>>>
>>> --
>>>
>>> Sandro Bonazzola
>>>
>>> MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
>>>
>>> Red Hat EMEA <
https://www.redhat.com/>
>>>
>>> sbonazzo(a)redhat.com
>>> <
https://www.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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>>
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>
>
> --
>
> Sandro Bonazzola
>
> MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
>
> Red Hat EMEA <
https://www.redhat.com/>
>
> sbonazzo(a)redhat.com
> <
https://www.redhat.com/>*Red Hat respects your work life balance.
> Therefore there is no need to answer this email out of your office hours.
> <
https://mojo.redhat.com/docs/DOC-1199578>*
>
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