Did you try VDO in sync-mode for the case the flush-fua
stuff isn't working through the layers?
Did you check that VDO-service is disabled and solely under
pacemaker-control and that the dependencies are set correctly?
Klaus
On 5/17/21 6:17 AM, Eric Robinson wrote:
Yes, DRBD is working fine.
*From:* Strahil Nikolov <[email protected]>
*Sent:* Sunday, May 16, 2021 6:06 PM
*To:* Eric Robinson <[email protected]>; Cluster Labs - All
topics related to open-source clustering welcomed <[email protected]>
*Subject:* RE: [ClusterLabs] DRBD + VDO HowTo?
Are you sure that the DRBD is working properly ?
Best Regards,
Strahil Nikolov
On Mon, May 17, 2021 at 0:32, Eric Robinson
<[email protected] <mailto:[email protected]>> wrote:
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.
*From:* Users <[email protected]
<mailto:[email protected]>> *On Behalf Of *Eric Robinson
*Sent:* Friday, May 14, 2021 3:55 PM
*To:* Strahil Nikolov <[email protected]
<mailto:[email protected]>>; Cluster Labs - All topics related
to open-source clustering welcomed <[email protected]
<mailto:[email protected]>>
*Subject:* Re: [ClusterLabs] DRBD + VDO HowTo?
Okay, I have it working now. The default systemd service
definitions did not work, so I created my own.
*From:* Strahil Nikolov <[email protected]
<mailto:[email protected]>>
*Sent:* Friday, May 14, 2021 3:41 AM
*To:* Eric Robinson <[email protected]
<mailto:[email protected]>>; Cluster Labs - All topics
related to open-source clustering welcomed <[email protected]
<mailto:[email protected]>>
*Subject:* RE: [ClusterLabs] DRBD + VDO HowTo?
There is no VDO RA according to my knowledge, but you can use
systemd service as a resource.
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.
Best Regards,
Strahil Nikolov
On Fri, May 14, 2021 at 6:55, Eric Robinson
<[email protected] <mailto:[email protected]>> wrote:
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?
*From:* Strahil Nikolov <[email protected]
<mailto:[email protected]>>
*Sent:* Thursday, May 13, 2021 10:07 PM
*To:* Cluster Labs - All topics related to open-source
clustering welcomed <[email protected]
<mailto:[email protected]>>; Eric Robinson
<[email protected] <mailto:[email protected]>>
*Subject:* Re: [ClusterLabs] DRBD + VDO HowTo?
For DRBD there is enough info, so let's focus on VDO.
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.
Best Regards,
Strahil Nikolov
On Fri, May 14, 2021 at 2:33, Eric Robinson
<[email protected] <mailto:[email protected]>>
wrote:
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.
https://linbit.com/blog/albireo-virtual-data-optimizer-vdo-on-drbd/
<https://linbit.com/blog/albireo-virtual-data-optimizer-vdo-on-drbd/>
-Eric
Disclaimer : This email and any files transmitted with it
are confidential and intended solely for intended
recipients. If you are not the named addressee you should
not disseminate, distribute, copy or alter this email. Any
views or opinions presented in this email are solely those
of the author and might not represent those of Physician
Select Management. Warning: Although Physician Select
Management has taken reasonable precautions to ensure no
viruses are present in this email, the company cannot
accept responsibility for any loss or damage arising from
the use of this email or attachments.
_______________________________________________
Manage your subscription:
https://lists.clusterlabs.org/mailman/listinfo/users
<https://lists.clusterlabs.org/mailman/listinfo/users>
ClusterLabs home: https://www.clusterlabs.org/
<https://www.clusterlabs.org/>
Disclaimer : This email and any files transmitted with it are
confidential and intended solely for intended recipients. If
you are not the named addressee you should not disseminate,
distribute, copy or alter this email. Any views or opinions
presented in this email are solely those of the author and
might not represent those of Physician Select Management.
Warning: Although Physician Select Management has taken
reasonable precautions to ensure no viruses are present in
this email, the company cannot accept responsibility for any
loss or damage arising from the use of this email or attachments.
Disclaimer : This email and any files transmitted with it are
confidential and intended solely for intended recipients. If you
are not the named addressee you should not disseminate,
distribute, copy or alter this email. Any views or opinions
presented in this email are solely those of the author and might
not represent those of Physician Select Management. Warning:
Although Physician Select Management has taken reasonable
precautions to ensure no viruses are present in this email, the
company cannot accept responsibility for any loss or damage
arising from the use of this email or attachments.
Disclaimer : This email and any files transmitted with it are
confidential and intended solely for intended recipients. If you
are not the named addressee you should not disseminate,
distribute, copy or alter this email. Any views or opinions
presented in this email are solely those of the author and might
not represent those of Physician Select Management. Warning:
Although Physician Select Management has taken reasonable
precautions to ensure no viruses are present in this email, the
company cannot accept responsibility for any loss or damage
arising from the use of this email or attachments.
Disclaimer : This email and any files transmitted with it are
confidential and intended solely for intended recipients. If you are
not the named addressee you should not disseminate, distribute, copy
or alter this email. Any views or opinions presented in this email are
solely those of the author and might not represent those of Physician
Select Management. Warning: Although Physician Select Management has
taken reasonable precautions to ensure no viruses are present in this
email, the company cannot accept responsibility for any loss or damage
arising from the use of this email or attachments.
_______________________________________________
Manage your subscription:
https://lists.clusterlabs.org/mailman/listinfo/users
ClusterLabs home: https://www.clusterlabs.org/
_______________________________________________
Manage your subscription:
https://lists.clusterlabs.org/mailman/listinfo/users
ClusterLabs home: https://www.clusterlabs.org/
