Have you tried to set VDO in async mode ?<div id="yMail_cursorElementTracker_1621246131234"><br></div><div id="yMail_cursorElementTracker_1621246131442">Best Regards,</div><div id="yMail_cursorElementTracker_1621246134824">Strahil Nikolov<br> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Mon, May 17, 2021 at 8:57, Klaus Wenninger</div><div><kwenning@redhat.com> wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> <div id="yiv7380066700"><div>
<div class="yiv7380066700moz-cite-prefix">Did you try VDO in sync-mode for the
case the flush-fua</div>
<div class="yiv7380066700moz-cite-prefix">stuff isn't working through the layers?</div>
<div class="yiv7380066700moz-cite-prefix">Did you check that VDO-service is
disabled and solely under</div>
<div class="yiv7380066700moz-cite-prefix">pacemaker-control and that the
dependencies are set correctly?</div>
<div class="yiv7380066700moz-cite-prefix"><br clear="none">
</div>
<div class="yiv7380066700moz-cite-prefix">Klaus<br clear="none">
</div>
<div class="yiv7380066700moz-cite-prefix"><br clear="none">
</div>
<div class="yiv7380066700moz-cite-prefix">On 5/17/21 6:17 AM, Eric Robinson
wrote:<br clear="none">
</div>
<blockquote type="cite">
</blockquote></div><style> _filtered {} _filtered {} _filtered {}#yiv7380066700 p.yiv7380066700MsoNormal, #yiv7380066700 li.yiv7380066700MsoNormal, #yiv7380066700 div.yiv7380066700MsoNormal
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{margin-right:0in;margin-left:0in;font-size:11.0pt;font-family:sans-serif;}#yiv7380066700 span.yiv7380066700EmailStyle32
{font-family:sans-serif;color:windowtext;}#yiv7380066700 .yiv7380066700MsoChpDefault
{font-family:sans-serif;}#yiv7380066700 div.yiv7380066700WordSection1
{}</style><div><div class="yiv7380066700WordSection1">
<p class="yiv7380066700MsoNormal">Yes, DRBD is working fine. </p>
<p class="yiv7380066700MsoNormal"> </p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;">
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
<p class="yiv7380066700MsoNormal"><b>From:</b> Strahil Nikolov
<a rel="nofollow noopener noreferrer" shape="rect" class="yiv7380066700moz-txt-link-rfc2396E" ymailto="mailto:hunter86_bg@yahoo.com" target="_blank" href="mailto:hunter86_bg@yahoo.com"><hunter86_bg@yahoo.com></a> <br clear="none">
<b>Sent:</b> Sunday, May 16, 2021 6:06 PM<br clear="none">
<b>To:</b> Eric Robinson
<a rel="nofollow noopener noreferrer" shape="rect" class="yiv7380066700moz-txt-link-rfc2396E" ymailto="mailto:eric.robinson@psmnv.com" target="_blank" href="mailto:eric.robinson@psmnv.com"><eric.robinson@psmnv.com></a>; Cluster Labs - All
topics related to open-source clustering welcomed
<a rel="nofollow noopener noreferrer" shape="rect" class="yiv7380066700moz-txt-link-rfc2396E" ymailto="mailto:users@clusterlabs.org" target="_blank" href="mailto:users@clusterlabs.org"><users@clusterlabs.org></a><br clear="none">
<b>Subject:</b> RE: [ClusterLabs] DRBD + VDO HowTo?</p>
</div>
</div>
<p class="yiv7380066700MsoNormal"> </p>
<p class="yiv7380066700MsoNormal">Are you sure that the DRBD is working
properly ?</p>
<div id="yiv7380066700yMail_cursorElementTracker_1621206371208">
<p class="yiv7380066700MsoNormal"> </p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1621206371394">
<p class="yiv7380066700MsoNormal">Best Regards,</p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1621206375706">
<p class="yiv7380066700MsoNormal" style="margin-bottom:12.0pt;">Strahil
Nikolov</p>
<blockquote style="margin-left:0in;margin-right:0in;margin-bottom:15.0pt;">
<div>
<div>
<p class="yiv7380066700MsoNormal"><span style="font-family:Roboto;color:#6D00F6;">On Mon,
May 17, 2021 at 0:32, Eric Robinson</span></p>
</div>
<div>
<p class="yiv7380066700MsoNormal"><span style="font-family:Roboto;color:#6D00F6;"><<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:eric.robinson@psmnv.com" target="_blank" href="mailto:eric.robinson@psmnv.com">eric.robinson@psmnv.com</a>>
wrote:</span></p>
</div>
</div>
<div style="border:none;border-left:solid #6D00F6 1.0pt;padding:0in 0in 0in 15.0pt;margin-top:7.5pt;">
<div id="yiv7380066700">
<div>
<div>
<p class="yiv7380066700msonormal">Okay, it turns
out I was wrong. I thought I had it working, but
I keep running into problems. Sometimes when I
demote a DRBD resource on Node A and promote it
on Node B, and I try to mount the filesystem,
the system complains that it cannot read the
superblock. But when I move the DRBD primary
back to Node A, the file system is mountable
again. Also, I have problems with filesystems
not mounting because the vdo devices are not
present. All kinds of issues.</p>
<div>
<p class="yiv7380066700msonormal"> </p>
</div>
<p class="yiv7380066700msonormal"> </p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;">
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
<div id="yiv7380066700yqtfd39754">
<p class="yiv7380066700msonormal"><b>From:</b>
Users <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:users-bounces@clusterlabs.org" target="_blank" href="mailto:users-bounces@clusterlabs.org">users-bounces@clusterlabs.org</a>>
<b>On Behalf Of </b>Eric Robinson<br clear="none">
<b>Sent:</b> Friday, May 14, 2021 3:55
PM<br clear="none">
<b>To:</b> Strahil Nikolov <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:hunter86_bg@yahoo.com" target="_blank" href="mailto:hunter86_bg@yahoo.com">hunter86_bg@yahoo.com</a>>;
Cluster Labs - All topics related to
open-source clustering welcomed <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:users@clusterlabs.org" target="_blank" href="mailto:users@clusterlabs.org">users@clusterlabs.org</a>><br clear="none">
<b>Subject:</b> Re: [ClusterLabs] DRBD +
VDO HowTo?</p>
</div>
</div>
</div>
<div id="yiv7380066700yqtfd80248">
<p class="yiv7380066700msonormal"> </p>
<p class="yiv7380066700msonormal"> </p>
<p class="yiv7380066700msonormal">Okay, I have
it working now. The default systemd service
definitions did not work, so I created my
own.
</p>
<p class="yiv7380066700msonormal"> </p>
<p class="yiv7380066700msonormal"> </p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;">
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
<p class="yiv7380066700msonormal"><b>From:</b>
Strahil Nikolov <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:hunter86_bg@yahoo.com" target="_blank" href="mailto:hunter86_bg@yahoo.com">hunter86_bg@yahoo.com</a>>
<br clear="none">
<b>Sent:</b> Friday, May 14, 2021 3:41
AM<br clear="none">
<b>To:</b> Eric Robinson <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:eric.robinson@psmnv.com" target="_blank" href="mailto:eric.robinson@psmnv.com">eric.robinson@psmnv.com</a>>;
Cluster Labs - All topics related to
open-source clustering welcomed <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:users@clusterlabs.org" target="_blank" href="mailto:users@clusterlabs.org">users@clusterlabs.org</a>><br clear="none">
<b>Subject:</b> RE: [ClusterLabs] DRBD
+ VDO HowTo?</p>
</div>
</div>
<p class="yiv7380066700msonormal"> </p>
<p class="yiv7380066700msonormal">There is
no VDO RA according to my knowledge, but
you can use systemd service as a resource.</p>
<div id="yiv7380066700yMail_cursorElementTracker_1620979503479">
<p class="yiv7380066700msonormal"> </p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1620979505648">
<p class="yiv7380066700msonormal">Yet, the
VDO service that comes with thr OS is a
generic one and controlls all VDOs - so
you need to create your own vdo service.</p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1620979573043">
<p class="yiv7380066700msonormal"> </p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1620979573221">
<p class="yiv7380066700msonormal">Best
Regards,</p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1620981647955">
<p class="yiv7380066700msonormal" style="margin-bottom:12.0pt;">Strahil
Nikolov</p>
<blockquote style="margin-left:0in;margin-top:5.0pt;margin-right:0in;margin-bottom:15.0pt;">
<div>
<div>
<p class="yiv7380066700msonormal"><span style="font-family:Roboto;color:#6D00F6;">On Fri, May 14, 2021 at 6:55,
Eric Robinson</span></p>
</div>
<div>
<p class="yiv7380066700msonormal"><span style="font-family:Roboto;color:#6D00F6;"><<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:eric.robinson@psmnv.com" target="_blank" href="mailto:eric.robinson@psmnv.com">eric.robinson@psmnv.com</a>>
wrote:</span></p>
</div>
</div>
<div style="border:none;border-left:solid #6D00F6 1.0pt;padding:0in 0in 0in 15.0pt;margin-top:7.5pt;">
<div id="yiv7380066700">
<div>
<div>
<p class="yiv7380066700msonormal4">I
created the VDO volumes fine
on the drbd devices, formatted
them as xfs filesystems,
created cluster filesystem
resources, and the cluster us
using them. But the cluster
won’t fail over. Is there a
VDO cluster RA out there
somewhere already? </p>
<p class="yiv7380066700msonormal4"> </p>
<p class="yiv7380066700msonormal4"> </p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;">
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
<p class="yiv7380066700msonormal4"><b>From:</b>
Strahil Nikolov <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:hunter86_bg@yahoo.com" target="_blank" href="mailto:hunter86_bg@yahoo.com">hunter86_bg@yahoo.com</a>>
<br clear="none">
<b>Sent:</b> Thursday,
May 13, 2021 10:07 PM<br clear="none">
<b>To:</b> Cluster Labs
- All topics related to
open-source clustering
welcomed <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:users@clusterlabs.org" target="_blank" href="mailto:users@clusterlabs.org">users@clusterlabs.org</a>>;
Eric Robinson <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:eric.robinson@psmnv.com" target="_blank" href="mailto:eric.robinson@psmnv.com">eric.robinson@psmnv.com</a>><br clear="none">
<b>Subject:</b> Re:
[ClusterLabs] DRBD + VDO
HowTo?</p>
</div>
</div>
<p class="yiv7380066700msonormal4"> </p>
<p class="yiv7380066700msonormal4">For
DRBD there is enough info,
so let's focus on VDO.</p>
<div id="yiv7380066700yMail_cursorElementTracker_1620961478467">
<p class="yiv7380066700msonormal4">There
is a systemd service that
starts all VDOs on the
system. You can create the
VDO once drbs is open for
writes and then you can
create your own systemd
'.service' file which can
be used as a cluster
resource.<br clear="none">
<br clear="none">
<br clear="none">
Best Regards,</p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1620961591508">
<p class="yiv7380066700msonormal4">Strahil
Nikolov</p>
</div>
<div id="yiv7380066700yMail_cursorElementTracker_1620961598346">
<p class="yiv7380066700msonormal4"> </p>
<blockquote style="margin-left:0in;margin-top:5.0pt;margin-right:0in;margin-bottom:15.0pt;">
<div>
<div>
<p class="yiv7380066700msonormal4"><span style="color:#6D00F6;">On Fri, May 14, 2021 at 2:33, Eric Robinson</span></p>
</div>
<div>
<p class="yiv7380066700msonormal4"><span style="color:#6D00F6;"><<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:eric.robinson@psmnv.com" target="_blank" href="mailto:eric.robinson@psmnv.com">eric.robinson@psmnv.com</a>> wrote:</span></p>
</div>
</div>
<div style="border:none;border-left:solid #6D00F6 1.0pt;padding:0in 0in 0in 15.0pt;margin-top:7.5pt;">
<div id="yiv7380066700">
<div>
<div>
<p class="yiv7380066700msonormal31">Can
anyone point to
a document on
how to use VDO
de-duplication
with DRBD?
Linbit has a
blog page about
it, but it was
last updated 6
years ago and
the embedded
links are dead.</p>
<p class="yiv7380066700msonormal31"> </p>
<p class="yiv7380066700msonormal31"><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://linbit.com/blog/albireo-virtual-data-optimizer-vdo-on-drbd/">https://linbit.com/blog/albireo-virtual-data-optimizer-vdo-on-drbd/</a></p>
<p class="yiv7380066700msonormal31"> </p>
<p class="yiv7380066700msonormal31">-Eric</p>
<p class="yiv7380066700msonormal31"> </p>
<p class="yiv7380066700msonormal31"> </p>
<p class="yiv7380066700msonormal31"> </p>
<p class="yiv7380066700msonormal31"> </p>
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