Re: [ovirt-users] Rebuilding my infra..

[Sahina Bose]

On Tue, Jan 9, 2018 at 12:58 PM, Yedidyah Bar David  wrote:

> On Mon, Jan 8, 2018 at 10:57 PM, Karli Sjöberg 
> wrote:
>
>>
>>
>> Den 8 jan. 2018 21:48 skrev Vinícius Ferrão :
>>
>> If I’m not wrong GlusterFS in oVirt requires 3 hosts.
>>
>>
>> Wasn't there a Ridning Hood not long ago that said they'd change it down
>> to 1 with 4.2, just to have something to get you started? To lower the bar
>> for POC systems, like all-in-one?
>>
>
> There is this:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1494112
>
> One dependent bug is in POST. Although I was asked to
> review the patch, I don't know much about the general
> plan, including whether that's enough or more bugs/fixes
> will be needed. Adding Sahina.
>

The dependent bug on allowing single node gluster volume will suffice for
manual deployment - that is, provision the gluser volumes using a gdeploy
configuration file. There are further changes needed to ensure that the
Cockpit UI based deployment supports single node gluster deployment.


> Best regards,
>
>
>>
>> /K
>>
>>
>> Here’s the RHHI guide, it’s pretty much the same for oVirt:
>> https://access.redhat.com/documentation/en-us/red_hat_hyperc
>> onverged_infrastructure/1.1/html/deploying_red_hat_hyperco
>> nverged_infrastructure/
>>
>> > On 8 Jan 2018, at 18:10, carl langlois wrote:
>> >
>> > Hi all
>> >
>> > After screwing my infra with the update to 4.2 (probably a bad
>> manipulation), i am planning a rebuild of the entire infra. First i want to
>> replace my NFS storage with a glusterfs storage. All documentation tell me
>> that i need 3 hosts.. but for the moment i only have 2 but planning to had
>> more later.
>> >
>> > So does it make sense to start with 2 hosts and use glusterfs as the
>> storage domain(lets says with a replicate of two with all its limitations).
>> > If it make sense,
>> > 1- what is the best way to do it.
>> > 2- how hard will it be to had the 3rd host when available and make it
>> replica 2+arbiter.
>> >
>> > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3
>> hosts can run users vm?
>> >
>> > Thanks for your inputs.
>> >
>> > Carl
>> >
>> > ___
>> > Users mailing list
>> > Users@ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
>
> --
> Didi
>
___
Users mailing list
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Re: [ovirt-users] Rebuilding my infra..

[carl langlois]

Thanks for the clarification.

Regards

Le 10 janv. 2018 1:17 AM, "Kasturi Narra"  a écrit :

> Hi carl,
>
>   During deployment via cockpit+gdeploy plugin when you input the
> host, host in the third text box will be considered as Arbiter host.
>
> Thanks
> kasturi
>
>
>
> On Tue, Jan 9, 2018 at 11:26 PM, carl langlois 
> wrote:
>
>> Some question about the arbiter box.
>>
>> 1- Lets says i am using a old box for the arbiter with minimum spec. Do i
>> need to mark it as a arbiter box? Does the installer scripts need to know
>> that it is a arbiter box?
>> 2- When i get my hand on new host for running VM. Do i need still need
>> the arbiter box?
>>
>> Thanks
>>
>> On Tue, Jan 9, 2018 at 2:28 AM, Yedidyah Bar David 
>> wrote:
>>
>>> On Mon, Jan 8, 2018 at 10:57 PM, Karli Sjöberg 
>>> wrote:
>>>


 Den 8 jan. 2018 21:48 skrev Vinícius Ferrão :

 If I’m not wrong GlusterFS in oVirt requires 3 hosts.


 Wasn't there a Ridning Hood not long ago that said they'd change it
 down to 1 with 4.2, just to have something to get you started? To lower the
 bar for POC systems, like all-in-one?

>>>
>>> There is this:
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1494112
>>>
>>> One dependent bug is in POST. Although I was asked to
>>> review the patch, I don't know much about the general
>>> plan, including whether that's enough or more bugs/fixes
>>> will be needed. Adding Sahina.
>>>
>>> Best regards,
>>>
>>>

 /K


 Here’s the RHHI guide, it’s pretty much the same for oVirt:
 https://access.redhat.com/documentation/en-us/red_hat_hyperc
 onverged_infrastructure/1.1/html/deploying_red_hat_hyperconv
 erged_infrastructure/

 > On 8 Jan 2018, at 18:10, carl langlois wrote:
 >
 > Hi all
 >
 > After screwing my infra with the update to 4.2 (probably a bad
 manipulation), i am planning a rebuild of the entire infra. First i want to
 replace my NFS storage with a glusterfs storage. All documentation tell me
 that i need 3 hosts.. but for the moment i only have 2 but planning to had
 more later.
 >
 > So does it make sense to start with 2 hosts and use glusterfs as the
 storage domain(lets says with a replicate of two with all its limitations).
 > If it make sense,
 > 1- what is the best way to do it.
 > 2- how hard will it be to had the 3rd host when available and make it
 replica 2+arbiter.
 >
 > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the
 3 hosts can run users vm?
 >
 > Thanks for your inputs.
 >
 > Carl
 >
 > ___
 > Users mailing list
 > Users@ovirt.org
 > http://lists.ovirt.org/mailman/listinfo/users

 ___
 Users mailing list
 Users@ovirt.org
 http://lists.ovirt.org/mailman/listinfo/users



 ___
 Users mailing list
 Users@ovirt.org
 http://lists.ovirt.org/mailman/listinfo/users


>>>
>>>
>>> --
>>> Didi
>>>
>>
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Rebuilding my infra..

[Kasturi Narra]

Hi carl,

  During deployment via cockpit+gdeploy plugin when you input the host,
host in the third text box will be considered as Arbiter host.

Thanks
kasturi



On Tue, Jan 9, 2018 at 11:26 PM, carl langlois 
wrote:

> Some question about the arbiter box.
>
> 1- Lets says i am using a old box for the arbiter with minimum spec. Do i
> need to mark it as a arbiter box? Does the installer scripts need to know
> that it is a arbiter box?
> 2- When i get my hand on new host for running VM. Do i need still need the
> arbiter box?
>
> Thanks
>
> On Tue, Jan 9, 2018 at 2:28 AM, Yedidyah Bar David 
> wrote:
>
>> On Mon, Jan 8, 2018 at 10:57 PM, Karli Sjöberg 
>> wrote:
>>
>>>
>>>
>>> Den 8 jan. 2018 21:48 skrev Vinícius Ferrão :
>>>
>>> If I’m not wrong GlusterFS in oVirt requires 3 hosts.
>>>
>>>
>>> Wasn't there a Ridning Hood not long ago that said they'd change it down
>>> to 1 with 4.2, just to have something to get you started? To lower the bar
>>> for POC systems, like all-in-one?
>>>
>>
>> There is this:
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1494112
>>
>> One dependent bug is in POST. Although I was asked to
>> review the patch, I don't know much about the general
>> plan, including whether that's enough or more bugs/fixes
>> will be needed. Adding Sahina.
>>
>> Best regards,
>>
>>
>>>
>>> /K
>>>
>>>
>>> Here’s the RHHI guide, it’s pretty much the same for oVirt:
>>> https://access.redhat.com/documentation/en-us/red_hat_hyperc
>>> onverged_infrastructure/1.1/html/deploying_red_hat_hyperconv
>>> erged_infrastructure/
>>>
>>> > On 8 Jan 2018, at 18:10, carl langlois wrote:
>>> >
>>> > Hi all
>>> >
>>> > After screwing my infra with the update to 4.2 (probably a bad
>>> manipulation), i am planning a rebuild of the entire infra. First i want to
>>> replace my NFS storage with a glusterfs storage. All documentation tell me
>>> that i need 3 hosts.. but for the moment i only have 2 but planning to had
>>> more later.
>>> >
>>> > So does it make sense to start with 2 hosts and use glusterfs as the
>>> storage domain(lets says with a replicate of two with all its limitations).
>>> > If it make sense,
>>> > 1- what is the best way to do it.
>>> > 2- how hard will it be to had the 3rd host when available and make it
>>> replica 2+arbiter.
>>> >
>>> > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the
>>> 3 hosts can run users vm?
>>> >
>>> > Thanks for your inputs.
>>> >
>>> > Carl
>>> >
>>> > ___
>>> > Users mailing list
>>> > Users@ovirt.org
>>> > http://lists.ovirt.org/mailman/listinfo/users
>>>
>>> ___
>>> Users mailing list
>>> Users@ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>>
>>> ___
>>> Users mailing list
>>> Users@ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>
>>
>> --
>> Didi
>>
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Rebuilding my infra..

[carl langlois]

Some question about the arbiter box.

1- Lets says i am using a old box for the arbiter with minimum spec. Do i
need to mark it as a arbiter box? Does the installer scripts need to know
that it is a arbiter box?
2- When i get my hand on new host for running VM. Do i need still need the
arbiter box?

Thanks

On Tue, Jan 9, 2018 at 2:28 AM, Yedidyah Bar David  wrote:

> On Mon, Jan 8, 2018 at 10:57 PM, Karli Sjöberg 
> wrote:
>
>>
>>
>> Den 8 jan. 2018 21:48 skrev Vinícius Ferrão :
>>
>> If I’m not wrong GlusterFS in oVirt requires 3 hosts.
>>
>>
>> Wasn't there a Ridning Hood not long ago that said they'd change it down
>> to 1 with 4.2, just to have something to get you started? To lower the bar
>> for POC systems, like all-in-one?
>>
>
> There is this:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1494112
>
> One dependent bug is in POST. Although I was asked to
> review the patch, I don't know much about the general
> plan, including whether that's enough or more bugs/fixes
> will be needed. Adding Sahina.
>
> Best regards,
>
>
>>
>> /K
>>
>>
>> Here’s the RHHI guide, it’s pretty much the same for oVirt:
>> https://access.redhat.com/documentation/en-us/red_hat_hyperc
>> onverged_infrastructure/1.1/html/deploying_red_hat_hyperco
>> nverged_infrastructure/
>>
>> > On 8 Jan 2018, at 18:10, carl langlois wrote:
>> >
>> > Hi all
>> >
>> > After screwing my infra with the update to 4.2 (probably a bad
>> manipulation), i am planning a rebuild of the entire infra. First i want to
>> replace my NFS storage with a glusterfs storage. All documentation tell me
>> that i need 3 hosts.. but for the moment i only have 2 but planning to had
>> more later.
>> >
>> > So does it make sense to start with 2 hosts and use glusterfs as the
>> storage domain(lets says with a replicate of two with all its limitations).
>> > If it make sense,
>> > 1- what is the best way to do it.
>> > 2- how hard will it be to had the 3rd host when available and make it
>> replica 2+arbiter.
>> >
>> > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3
>> hosts can run users vm?
>> >
>> > Thanks for your inputs.
>> >
>> > Carl
>> >
>> > ___
>> > Users mailing list
>> > Users@ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
>
> --
> Didi
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Rebuilding my infra..

[Yedidyah Bar David]

On Mon, Jan 8, 2018 at 10:57 PM, Karli Sjöberg  wrote:

>
>
> Den 8 jan. 2018 21:48 skrev Vinícius Ferrão :
>
> If I’m not wrong GlusterFS in oVirt requires 3 hosts.
>
>
> Wasn't there a Ridning Hood not long ago that said they'd change it down
> to 1 with 4.2, just to have something to get you started? To lower the bar
> for POC systems, like all-in-one?
>

There is this:

https://bugzilla.redhat.com/show_bug.cgi?id=1494112

One dependent bug is in POST. Although I was asked to
review the patch, I don't know much about the general
plan, including whether that's enough or more bugs/fixes
will be needed. Adding Sahina.

Best regards,


>
> /K
>
>
> Here’s the RHHI guide, it’s pretty much the same for oVirt:
> https://access.redhat.com/documentation/en-us/red_hat_
> hyperconverged_infrastructure/1.1/html/deploying_red_hat_
> hyperconverged_infrastructure/
>
> > On 8 Jan 2018, at 18:10, carl langlois wrote:
> >
> > Hi all
> >
> > After screwing my infra with the update to 4.2 (probably a bad
> manipulation), i am planning a rebuild of the entire infra. First i want to
> replace my NFS storage with a glusterfs storage. All documentation tell me
> that i need 3 hosts.. but for the moment i only have 2 but planning to had
> more later.
> >
> > So does it make sense to start with 2 hosts and use glusterfs as the
> storage domain(lets says with a replicate of two with all its limitations).
> > If it make sense,
> > 1- what is the best way to do it.
> > 2- how hard will it be to had the 3rd host when available and make it
> replica 2+arbiter.
> >
> > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3
> hosts can run users vm?
> >
> > Thanks for your inputs.
> >
> > Carl
> >
> > ___
> > Users mailing list
> > Users@ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>


-- 
Didi
___
Users mailing list
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Re: [ovirt-users] Rebuilding my infra..

[WK]

On 1/8/2018 12:38 PM, Johan Bernhardsson wrote:


You can't start the hosted engine storage bin anything less than 
replica 3 without changing the installer scripts manually.


For the third it can be pretty much anything capable of running as an 
arbiter.





+1 the arb box can be an old SFP core2duo with a 40-60 GB SSD for most 
cases. The formula is something like 4k of arbiter space for every 
"file".  For 10-80 VM disk images that would be really minimal.


-wk
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Re: [ovirt-users] Rebuilding my infra..

[Karli Sjöberg]

Den 8 jan. 2018 21:48 skrev Vinícius Ferrão :If I’m not wrong GlusterFS in oVirt requires 3 hosts.Wasn't there a Ridning Hood not long ago that said they'd change it down to 1 with 4.2, just to have something to get you started? To lower the bar for POC systems, like all-in-one?/KHere’s the RHHI guide, it’s pretty much the same for oVirt: https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infrastructure/1.1/html/deploying_red_hat_hyperconverged_infrastructure/> On 8 Jan 2018, at 18:10, carl langlois  wrote:> > Hi all> > After screwing my infra with the update to 4.2 (probably a bad manipulation), i am planning a rebuild of the entire infra. First i want to replace my NFS storage with a glusterfs storage. All documentation tell me that i need 3 hosts.. but for the moment i only have 2 but planning to had more later. > > So does it make sense to start with 2 hosts and use glusterfs as the storage domain(lets says with a replicate of two with all its limitations). > If it make sense, > 1- what is the best way to do it.> 2- how hard will it be to had the 3rd host when available and make it  replica 2+arbiter.> > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3 hosts can run users vm?> > Thanks for your inputs.> > Carl> > ___> Users mailing list> Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users___Users mailing listUsers@ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Rebuilding my infra..

[Vinícius Ferrão]

If I’m not wrong GlusterFS in oVirt requires 3 hosts.

Here’s the RHHI guide, it’s pretty much the same for oVirt: 
https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infrastructure/1.1/html/deploying_red_hat_hyperconverged_infrastructure/

> On 8 Jan 2018, at 18:10, carl langlois  wrote:
> 
> Hi all
> 
> After screwing my infra with the update to 4.2 (probably a bad manipulation), 
> i am planning a rebuild of the entire infra. First i want to replace my NFS 
> storage with a glusterfs storage. All documentation tell me that i need 3 
> hosts.. but for the moment i only have 2 but planning to had more later. 
> 
> So does it make sense to start with 2 hosts and use glusterfs as the storage 
> domain(lets says with a replicate of two with all its limitations). 
> If it make sense, 
> 1- what is the best way to do it.
> 2- how hard will it be to had the 3rd host when available and make it  
> replica 2+arbiter.
> 
> Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3 hosts 
> can run users vm?
> 
> Thanks for your inputs.
> 
> Carl
> 
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

___
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Re: [ovirt-users] Rebuilding my infra..

[Johan Bernhardsson]

You can't start the hosted engine storage bin anything less than replica 3 
without changing the installer scripts manually.


For the third it can be pretty much anything capable of running as an arbiter.

/Johan


On January 8, 2018 21:33:25 carl langlois  wrote:


I should have say replica 3+arbiter when adding the 3rd host.

Yes i know that the documentation specified 3 hosts. But if i understand
this is to make sure the system is always reliable and that make sense. But
my questions is mainly is it possible to start with 2 nodes and had a 3rd
one later..when i had the budget. If i am not mistaking Gluster can work
with 2 nodes.



On Mon, Jan 8, 2018 at 3:15 PM, Vinícius Ferrão  wrote:


If I’m not wrong GlusterFS in oVirt requires 3 hosts.

Here’s the RHHI guide, it’s pretty much the same for oVirt:
https://access.redhat.com/documentation/en-us/red_hat_
hyperconverged_infrastructure/1.1/html/deploying_red_hat_
hyperconverged_infrastructure/

> On 8 Jan 2018, at 18:10, carl langlois  wrote:
>
> Hi all
>
> After screwing my infra with the update to 4.2 (probably a bad
manipulation), i am planning a rebuild of the entire infra. First i want to
replace my NFS storage with a glusterfs storage. All documentation tell me
that i need 3 hosts.. but for the moment i only have 2 but planning to had
more later.
>
> So does it make sense to start with 2 hosts and use glusterfs as the
storage domain(lets says with a replicate of two with all its limitations).
> If it make sense,
> 1- what is the best way to do it.
> 2- how hard will it be to had the 3rd host when available and make it
replica 2+arbiter.
>
> Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3
hosts can run users vm?
>
> Thanks for your inputs.
>
> Carl
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users






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Re: [ovirt-users] Rebuilding my infra..

[carl langlois]

I should have say replica 3+arbiter when adding the 3rd host.

Yes i know that the documentation specified 3 hosts. But if i understand
this is to make sure the system is always reliable and that make sense. But
my questions is mainly is it possible to start with 2 nodes and had a 3rd
one later..when i had the budget. If i am not mistaking Gluster can work
with 2 nodes.



On Mon, Jan 8, 2018 at 3:15 PM, Vinícius Ferrão  wrote:

> If I’m not wrong GlusterFS in oVirt requires 3 hosts.
>
> Here’s the RHHI guide, it’s pretty much the same for oVirt:
> https://access.redhat.com/documentation/en-us/red_hat_
> hyperconverged_infrastructure/1.1/html/deploying_red_hat_
> hyperconverged_infrastructure/
>
> > On 8 Jan 2018, at 18:10, carl langlois  wrote:
> >
> > Hi all
> >
> > After screwing my infra with the update to 4.2 (probably a bad
> manipulation), i am planning a rebuild of the entire infra. First i want to
> replace my NFS storage with a glusterfs storage. All documentation tell me
> that i need 3 hosts.. but for the moment i only have 2 but planning to had
> more later.
> >
> > So does it make sense to start with 2 hosts and use glusterfs as the
> storage domain(lets says with a replicate of two with all its limitations).
> > If it make sense,
> > 1- what is the best way to do it.
> > 2- how hard will it be to had the 3rd host when available and make it
> replica 2+arbiter.
> >
> > Also in a setup where i have 3 hosts (replica 2+arbiter) does all the 3
> hosts can run users vm?
> >
> > Thanks for your inputs.
> >
> > Carl
> >
> > ___
> > Users mailing list
> > Users@ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
>
>
___
Users mailing list
Users@ovirt.org
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