[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[simon]

Many thanks Satheesaran,

The import now works as expected.

Kind Regards

Simon...
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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Satheesaran Sundaramoorthi]

On Tue, Jun 8, 2021 at 3:38 AM Simon Scott  wrote:

> Anyone have any comments please?
>
> Hi Simon,

With the latest version of gluster, when geo-replication is in setup, the
slave volume will be set to read-only.
Before you could import that storage domain, make sure to disable read-only
on the slave volume.
# gluster volume set  features.read-only off

I do not think the documentation details available upstream.
@Ritesh Chikatwar  Could you check, whether the
documentation is available upstream.

Thanks,
Satheesaran Sundaramoorthi

> On 28 May 2021, at 08:01, Simon Scott  wrote:
>
> 
> Hi All,
>
> Does anyone have any further input on this please?
>
> Kind regards
>
> Simon...
>
> On 25 May 2021, at 09:26, Ritesh Chikatwar  wrote:
>
> 
> Sas, maybe you have have some thoughts on this
>
> On Tue, May 25, 2021 at 1:19 PM Vojtech Juranek 
> wrote:
>
>> (CC Pavel, who recently worked on DR, maybe he will have some thoughts)
>>
>> On Monday, 24 May 2021 17:56:56 CEST si...@justconnect.ie wrote:
>> > Hi All,
>> >
>> > I have 2 independent Hyperconverged Sites/Data Centers.
>> >
>> > Site A has a GlusterFS Replica 3 + Arbiter Volume that is Storage Domain
>> > data2
>>  This Volume is Geo-Replicated to a Replica 3 + Arbiter Volume at
>> > Site B called data2_bdt
>> > I have simulated a DR event and now want to import the Ge0-Replicated
>> volume
>> > data2_bdt as a Storage Domain on Site B. Once imported I need to import
>> the
>> > VMs on this volume to run in Site B.
>>
>> > The Geo-Replication now works perfectly (thanks Strahil) but I haven't
>> been
>> > able to import the Storage Domain.
>>
>> > Please can someone point me in the right direction or documentation on
>> how
>> > this can be achieved.
>>
>> > Kind Regards
>> >
>> > Shimme...
>> > ___
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>> Archives:
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>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/LQCTZS6YTKMME
>> > 2EHBXJEGUM2WDNSYXEC/
>>
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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Simon Scott]

Anyone have any comments please?

On 28 May 2021, at 08:01, Simon Scott  wrote:


Hi All,

Does anyone have any further input on this please?

Kind regards

Simon...

On 25 May 2021, at 09:26, Ritesh Chikatwar  wrote:


Sas, maybe you have have some thoughts on this

On Tue, May 25, 2021 at 1:19 PM Vojtech Juranek 
mailto:vjura...@redhat.com>> wrote:
(CC Pavel, who recently worked on DR, maybe he will have some thoughts)

On Monday, 24 May 2021 17:56:56 CEST 
si...@justconnect.ie wrote:
> Hi All,
>
> I have 2 independent Hyperconverged Sites/Data Centers.
>
> Site A has a GlusterFS Replica 3 + Arbiter Volume that is Storage Domain
> data2
 This Volume is Geo-Replicated to a Replica 3 + Arbiter Volume at
> Site B called data2_bdt
> I have simulated a DR event and now want to import the Ge0-Replicated volume
> data2_bdt as a Storage Domain on Site B. Once imported I need to import the
> VMs on this volume to run in Site B.

> The Geo-Replication now works perfectly (thanks Strahil) but I haven't been
> able to import the Storage Domain.

> Please can someone point me in the right direction or documentation on how
> this can be achieved.

> Kind Regards
>
> Shimme...
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> 2EHBXJEGUM2WDNSYXEC/

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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Simon Scott]

Hi All,

Does anyone have any further input on this please?

Kind regards

Simon...

On 25 May 2021, at 09:26, Ritesh Chikatwar  wrote:


Sas, maybe you have have some thoughts on this

On Tue, May 25, 2021 at 1:19 PM Vojtech Juranek 
mailto:vjura...@redhat.com>> wrote:
(CC Pavel, who recently worked on DR, maybe he will have some thoughts)

On Monday, 24 May 2021 17:56:56 CEST 
si...@justconnect.ie wrote:
> Hi All,
>
> I have 2 independent Hyperconverged Sites/Data Centers.
>
> Site A has a GlusterFS Replica 3 + Arbiter Volume that is Storage Domain
> data2
 This Volume is Geo-Replicated to a Replica 3 + Arbiter Volume at
> Site B called data2_bdt
> I have simulated a DR event and now want to import the Ge0-Replicated volume
> data2_bdt as a Storage Domain on Site B. Once imported I need to import the
> VMs on this volume to run in Site B.

> The Geo-Replication now works perfectly (thanks Strahil) but I haven't been
> able to import the Storage Domain.

> Please can someone point me in the right direction or documentation on how
> this can be achieved.

> Kind Regards
>
> Shimme...
> ___
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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Ritesh Chikatwar]

Sas, maybe you have have some thoughts on this

On Tue, May 25, 2021 at 1:19 PM Vojtech Juranek  wrote:

> (CC Pavel, who recently worked on DR, maybe he will have some thoughts)
>
> On Monday, 24 May 2021 17:56:56 CEST si...@justconnect.ie wrote:
> > Hi All,
> >
> > I have 2 independent Hyperconverged Sites/Data Centers.
> >
> > Site A has a GlusterFS Replica 3 + Arbiter Volume that is Storage Domain
> > data2
>  This Volume is Geo-Replicated to a Replica 3 + Arbiter Volume at
> > Site B called data2_bdt
> > I have simulated a DR event and now want to import the Ge0-Replicated
> volume
> > data2_bdt as a Storage Domain on Site B. Once imported I need to import
> the
> > VMs on this volume to run in Site B.
>
> > The Geo-Replication now works perfectly (thanks Strahil) but I haven't
> been
> > able to import the Storage Domain.
>
> > Please can someone point me in the right direction or documentation on
> how
> > this can be achieved.
>
> > Kind Regards
> >
> > Shimme...
> > ___
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> Archives:
> >
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/LQCTZS6YTKMME
> > 2EHBXJEGUM2WDNSYXEC/
>
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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Strahil Nikolov via Users]

Ah, that makes sense :)
I hope someone else with DR experience can share their thoughts.
Best Regards,Strahil Nikolov
 
 
  On Tue, May 25, 2021 at 9:55, Simon Scott wrote:   Just 
to clarify...

Site A has volume data2 which geo-replicates to Site B

Site B has volume data1 which geo-replicates to Site A

I will look at the engine upgrade and ansible today.


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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Vojtech Juranek]

(CC Pavel, who recently worked on DR, maybe he will have some thoughts)

On Monday, 24 May 2021 17:56:56 CEST si...@justconnect.ie wrote:
> Hi All,
> 
> I have 2 independent Hyperconverged Sites/Data Centers.
> 
> Site A has a GlusterFS Replica 3 + Arbiter Volume that is Storage Domain
> data2
 This Volume is Geo-Replicated to a Replica 3 + Arbiter Volume at
> Site B called data2_bdt 
> I have simulated a DR event and now want to import the Ge0-Replicated volume
> data2_bdt as a Storage Domain on Site B. Once imported I need to import the
> VMs on this volume to run in Site B.
 
> The Geo-Replication now works perfectly (thanks Strahil) but I haven't been
> able to import the Storage Domain.
 
> Please can someone point me in the right direction or documentation on how
> this can be achieved.
 
> Kind Regards
> 
> Shimme...
> ___
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> 2EHBXJEGUM2WDNSYXEC/



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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Simon Scott]

Just to clarify...

Site A has volume data2 which geo-replicates to Site B

Site B has volume data1 which geo-replicates to Site A

I will look at the engine upgrade and ansible today.


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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Strahil Nikolov via Users]

Geo-replicating to each other  Hm, I don't think it's supported. Can you 
drop a line to gluster-users mail list ?
Ansible is open-source and is already installed on the HE , as most tasks are 
done with Absible there.
For the DR, I think that you need to keep both sites on the same version. At 
least for Gluster is mandatory.
Can you bump the site A version to match B ?
Best Regards,Strahil Nikolov
 
 
Thanks Strahil,

I was trying to do this manually first and was under the impression that Red 
Hat Ansible Engine was fairly expensive, something that we are trying to avoid, 
hence the oVirt environments.

I hadn't realised that our engine on the Site B had installed as 4.4.6 
following a rebuild last week. The engine on SIte A is 4.4.5 - not sure if 
that's an issue in this current failed import test?

Our 2 sites are both Primary and will have Production VMs. Both sites will be 
geo-replicating to each other and therefore will both also be prospective DR 
sites.

Any thoughts would be welcome.

Kind Regards

Simon...
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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[simon]

Thanks Strahil,

I was trying to do this manually first and was under the impression that Red 
Hat Ansible Engine was fairly expensive, something that we are trying to avoid, 
hence the oVirt environments.

I hadn't realised that our engine on the Site B had installed as 4.4.6 
following a rebuild last week. The engine on SIte A is 4.4.5 - not sure if 
that's an issue in this current failed import test?

Our 2 sites are both Primary and will have Production VMs. Both sites will be 
geo-replicating to each other and therefore will both also be prospective DR 
sites.

Any thoughts would be welcome.

Kind Regards

Simon...
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[ovirt-users] Re: Import Ge0-Replicated Storage Domain fails

[Strahil Nikolov via Users]

Hi Simon,

I think there was a DR Ansible role to make your life easier.
Have you checked section 3 from 
https://www.ovirt.org/documentation/disaster_recovery_guide/  ?

Best Regards,
Strahil Nikolov






В понеделник, 24 май 2021 г., 18:57:42 ч. Гринуич+3, si...@justconnect.ie 
 написа: 





Hi All,

I have 2 independent Hyperconverged Sites/Data Centers.

Site A has a GlusterFS Replica 3 + Arbiter Volume that is Storage Domain data2
This Volume is Geo-Replicated to a Replica 3 + Arbiter Volume at Site B called 
data2_bdt

I have simulated a DR event and now want to import the Ge0-Replicated volume 
data2_bdt as a Storage Domain on Site B. Once imported I need to import the VMs 
on this volume to run in Site B.

The Geo-Replication now works perfectly (thanks Strahil) but I haven't been 
able to import the Storage Domain.

Please can someone point me in the right direction or documentation on how this 
can be achieved.

Kind Regards

Shimme...
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