Re: [ovirt-users] ovirt-live 4.2 - missing stable ISO? + Networking question - when to setup host & in NM or ifcfg?

2018-01-10 Thread Sam McLeod 

> On 10 Jan 2018, at 19:27, Yaniv Kaul  > wrote:
> 
>> On Wed, Jan 10, 2018 at 8:35 AM, Sam McLeod > > wrote:
>> I'm trying to find the stable / current oVirt-live ISO to download.
>> 
>> According to the official documentation, it looks like there is only the 
>> legacy 4.1 ISO, or nightly / unstable builds of 4.2(.2?)?
>> 
>> SRC: https://www.ovirt.org/download/ovirt-live/ 
>> 
>> 
>> I'm hoping we have deprecated it. For demo purposes, you could set up 
>> ovirt-system-tests[1]. For an all-in-one you could either install the Engine 
>> and the hypervisor on the same physical host, or a self-hosted-engine with a 
>> single physical node.


I just realised where I was getting confused, I simply was mixing up 'oVirt 
live' and 'oVirt node', both of which also have a very similar looking 
documentation page.

I've submitted a MR to clarify that oVirt live is deprecated, and to add a link 
to oVirt node: https://github.com/oVirt/ovirt-site/pull/1478
>> 
>> Example diagram of infrastructure: https://i.imgur.com/U4hCP3a.png 
>> 
>> 
>> With iSCSI, I prefer multipathing, but I see why you'd want bond, if it's 
>> used for other traffic as well.

Indeed, this interface acts as a 20Gbit LACP bond to the core switches passing 
not just iSCSI traffic over a specific VLAN but providing other VLANs / 
networks to servers.

>> Y.
>> 
>> [1] ovirt-system-tests.readthedocs.io/en/latest/ 
>>  
>>  


--
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https://smcleod.net
https://twitter.com/s_mcleod

Words are my own opinions and do not necessarily represent those of my employer 
or partners.

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Re: [ovirt-users] ovirt-live 4.2 - missing stable ISO? + Networking question - when to setup host & in NM or ifcfg?

2018-01-10 Thread Sam McLeod 
Excellent responses, I think you really covered everything quite well there.

I’d heard some contradictory information from various sources so wasn’t quite 
sure what to believe.

I’ve already contributed one (tiny) documentation patch that was merged in 
yesterday - if we go ahead with ovirt from XenServer - I’ll definitely be 
contributing more, you have my word on that.

Thanks again for your time.

--
Sam McLeod (protoporpoise on IRC)

> On 10 Jan 2018, at 19:27, Yaniv Kaul  wrote:
> 
> 
> 
>> On Wed, Jan 10, 2018 at 8:35 AM, Sam McLeod  wrote:
>> I'm trying to find the stable / current oVirt-live ISO to download.
>> 
>> According to the official documentation, it looks like there is only the 
>> legacy 4.1 ISO, or nightly / unstable builds of 4.2(.2?)?
>> 
>> SRC: https://www.ovirt.org/download/ovirt-live/
> 
> I'm hoping we have deprecated it. For demo purposes, you could set up 
> ovirt-system-tests[1]. For an all-in-one you could either install the Engine 
> and the hypervisor on the same physical host, or a self-hosted-engine with a 
> single physical node.
>  
>> 
>> ---
>> 
>> Alternatively, if one is to deploy the 'self-hosted-engine' on top of CentOS 
>> 7.4, the documentation doesn't make it clear what you should vs shouldn't 
>> setup on the host prior to deploying the hosted engine.
>> 
>> For example, some big questions pop up around networking, e.g.:
>> 
>> - Should I be setting those up during CentOS's install using the installer 
>> (which I believe configures them with Network Manager), or should I be 
>> setting up the ifcfg files manually by hand without touching Network Manager 
>> via the server's remote console after the install has finished?
> 
> Either is fine.
>  
>> 
>> - Is it OK for me to setup my first two NICs in a mode 1 (A/P) or 4 (XOR) 
>> bond (these are connected to a 'dumb' switch and provide internet access and 
>> later will be used for management activities such as vm migrations).
> 
> It is, though if not needed, I think it's easier to do it later via oVirt.
>  
>> 
>> - Is it OK for me to setup my second two NICs in a LACP bond (required as 
>> they connect to our core switches) and to add VLANs on top of that bond, 
>> include the storage VLAN required for iSCSI access which is later required 
>> to host the hosted-engine?
> 
> It is, though it might be easier to do it later via oVirt (unless you need it 
> to access the storage Hosted-Engine is using!)
>  
>> 
>> SRC: 
>> https://www.ovirt.org/documentation/self-hosted/chap-Deploying_Self-Hosted_Engine/
>> 
>> ---
>> 
>> I think the hardest thing is that the documentation for oVirt seems very 
>> poorly maintained, or it's at least scattered around various links or 
>> different guides.
> 
> Our documentation, like the code, is open source. Patches are always welcome.
> 
>> 
>> Perhaps this isn't obvious to people that are already familiar with the 
>> components, terminology and setup practises of oVirt / RHEV, but for someone 
>> like me coming from XenServer - it's confusing as anything.
>> 
>> 
>> Example diagram of infrastructure: https://i.imgur.com/U4hCP3a.png
> 
> With iSCSI, I prefer multipathing, but I see why you'd want bond, if it's 
> used for other traffic as well.
> Y.
> 
> [1] ovirt-system-tests.readthedocs.io/en/latest/ 
>  
>> 
>> --
>> Sam McLeod (protoporpoise on IRC)
>> https://smcleod.net
>> https://twitter.com/s_mcleod
>> 
>> Words are my own opinions and do not necessarily represent those of my 
>> employer or partners.
>> 
>> 
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>> 
> 
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Re: [ovirt-users] ovirt-live 4.2 - missing stable ISO? + Networking question - when to setup host & in NM or ifcfg?

2018-01-10 Thread Yaniv Kaul 
On Wed, Jan 10, 2018 at 8:35 AM, Sam McLeod 
wrote:

> I'm trying to find the stable / current oVirt-live ISO to download.
>
> According to the official documentation, it looks like there is only the
> legacy 4.1 ISO, or nightly / unstable builds of 4.2(.2?)?
>
> SRC: https://www.ovirt.org/download/ovirt-live/
>

I'm hoping we have deprecated it. For demo purposes, you could set up
ovirt-system-tests[1]. For an all-in-one you could either install the
Engine and the hypervisor on the same physical host, or a
self-hosted-engine with a single physical node.


>
> ---
>
> Alternatively, if one is to deploy the 'self-hosted-engine' on top of
> CentOS 7.4, the documentation doesn't make it clear what you should vs
> shouldn't setup on the host prior to deploying the hosted engine.
>
> For example, some big questions pop up around networking, e.g.:
>
> - Should I be setting those up during CentOS's install using the installer
> (which I believe configures them with Network Manager), or should I be
> setting up the ifcfg files manually by hand without touching Network
> Manager via the server's remote console after the install has finished?
>

Either is fine.


>
> - Is it OK for me to setup my first two NICs in a mode 1 (A/P) or 4 (XOR)
> bond (these are connected to a 'dumb' switch and provide internet access
> and later will be used for management activities such as vm migrations).
>

It is, though if not needed, I think it's easier to do it later via oVirt.


>
> - Is it OK for me to setup my second two NICs in a LACP bond (required as
> they connect to our core switches) and to add VLANs on top of that bond,
> include the storage VLAN required for iSCSI access which is later required
> to host the hosted-engine?
>

It is, though it might be easier to do it later via oVirt (unless you need
it to access the storage Hosted-Engine is using!)


>
> SRC: https://www.ovirt.org/documentation/self-hosted/
> chap-Deploying_Self-Hosted_Engine/
>
> ---
>
> I think the hardest thing is that the documentation for oVirt seems very
> poorly maintained, or it's at least scattered around various links or
> different guides.
>

Our documentation, like the code, is open source. Patches are always
welcome.


> Perhaps this isn't obvious to people that are already familiar with the
> components, terminology and setup practises of oVirt / RHEV, but for
> someone like me coming from XenServer - it's confusing as anything.
>
>
> Example diagram of infrastructure: https://i.imgur.com/U4hCP3a.png
>

With iSCSI, I prefer multipathing, but I see why you'd want bond, if it's
used for other traffic as well.
Y.

[1] ovirt-system-tests.readthedocs.io/en/latest/

>

>
> --
> Sam McLeod (protoporpoise on IRC)
> https://smcleod.net
> https://twitter.com/s_mcleod
>
> Words are my own opinions and do not necessarily represent those of
> my employer or partners.
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
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[ovirt-users] ovirt-live 4.2 - missing stable ISO? + Networking question - when to setup host & in NM or ifcfg?

2018-01-09 Thread Sam McLeod 
I'm trying to find the stable / current oVirt-live ISO to download.

According to the official documentation, it looks like there is only the legacy 
4.1 ISO, or nightly / unstable builds of 4.2(.2?)?

SRC: https://www.ovirt.org/download/ovirt-live/ 


---

Alternatively, if one is to deploy the 'self-hosted-engine' on top of CentOS 
7.4, the documentation doesn't make it clear what you should vs shouldn't setup 
on the host prior to deploying the hosted engine.

For example, some big questions pop up around networking, e.g.:

- Should I be setting those up during CentOS's install using the installer 
(which I believe configures them with Network Manager), or should I be setting 
up the ifcfg files manually by hand without touching Network Manager via the 
server's remote console after the install has finished?

- Is it OK for me to setup my first two NICs in a mode 1 (A/P) or 4 (XOR) bond 
(these are connected to a 'dumb' switch and provide internet access and later 
will be used for management activities such as vm migrations).

- Is it OK for me to setup my second two NICs in a LACP bond (required as they 
connect to our core switches) and to add VLANs on top of that bond, include the 
storage VLAN required for iSCSI access which is later required to host the 
hosted-engine?

SRC: 
https://www.ovirt.org/documentation/self-hosted/chap-Deploying_Self-Hosted_Engine/
 


---

I think the hardest thing is that the documentation for oVirt seems very poorly 
maintained, or it's at least scattered around various links or different guides.

Perhaps this isn't obvious to people that are already familiar with the 
components, terminology and setup practises of oVirt / RHEV, but for someone 
like me coming from XenServer - it's confusing as anything.


Example diagram of infrastructure: https://i.imgur.com/U4hCP3a.png 


--
Sam McLeod (protoporpoise on IRC)
https://smcleod.net
https://twitter.com/s_mcleod

Words are my own opinions and do not necessarily represent those of my employer 
or partners.

___
Users mailing list
Users@ovirt.org
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