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
>> >
>> > ___
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>> > Users@ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>>
>> ___
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>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>> ___
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>>
>>
>
>
> --
> Didi
>
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Re: [ovirt-users] Fresh install - unable to web gui login

[Yedidyah Bar David]

On Thu, Jan 11, 2018 at 4:27 AM, Robin  wrote:

> Hi,
>
> I'm a new user , just installed Ovirt on a Centos 7, I gotten the web ui
> page but clicking on Login button does nothing. There is a warning
>
> "The redirection URI for client is not registered"
>

In the browser's address bar, you need to supply a url
with exactly the same name as the one you supplied to
engine-setup when asked for the FQDN.

If you need something else, please search the list archives
for "SSO_ALTERNATE_ENGINE_FQDNS".

Best regards,


>
> screen capture.
>
> https://filedn.com/l3TGy7Y83c247u0RDYa9fkp/temp/ovirt/overt1.jpg
>
>
> --
> Robin
>
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>


-- 
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[ovirt-users] host-passthrough or pcid enable for Westmere and SandyBridge

[Eduardo Mayoral]

Hi,

    With the meltdown patches, now it is specially beneficial to have
the pcid feature in the virtual CPUs. See:

https://groups.google.com/forum/#!topic/mechanical-sympathy/L9mHTbeQLNU

    The PCID feature is available in physical "Westmere" (Release date
circa 2010) or newer CPUs.

    However, in libvirt the pcid feature is only avalilable for virtual
CPUs Haswell (Release date circa 2013) or newer. The recomendation is
using Haswell, Broadwell or Skylake based model or host passthrough.
Now, I think "host passthrough" is not an option for oVirt for good
reason so this leaves Haswell, Broadwell or Skylake as options.

    Is it possible to edit /usr/share/libvirt/cpu_map.xml on the compute
nodes to add the pcid feature to the virtual CPU models between Westmere
and Haswell (that would be Westmere and SandyBridge)? Is anyone aware if
something like this is being considered by the libvirt developers?
Actually understanding the implications or doing so is way beyond my
skill level.

    By now you may have guessed that my oVirt clusters use physical
Westmere and SandyBridge CPUs :-/

    Thanks in advance for your help!

-- 

Eduardo Mayoral Jimeno (emayo...@arsys.es)
Administrador de sistemas. Departamento de Plataformas. Arsys internet.
+34 941 620 145 ext. 5153

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Re: [ovirt-users] user permissions

[Zhong Qiang]

according to the description of this article:
https://gerrit.ovirt.org/#/c/74173/

Changed the value of property 'ENGINE_API_FILTER_BY_DEFAULT' to
false,but it still did not work.BTW. My Ovirt is 4.2.0.2-1


thanks.


2018-01-11 10:57 GMT+08:00 Zhong Qiang :

> Hi,
>
>I tried to give a user the permissions for  vms. when this user log in
> vm portal ,get  messages  "No VM available."
>  this user was granted follow roles:
>UserVmManager
>UserRole
>
>  engine logs:
>  2018-01-10 20:32:33,938-05 INFO  
> [org.ovirt.engine.core.bll.AddPermissionCommand]
> (EE-ManagedThreadFactory-engine-Thread-7438) 
> [9b5a405a-c956-4d69-b286-f6b22cbf3c12]
> Running command: AddPermissionCommand internal: false. Entities affected :
> ID: 1cf75959-7992-43fe-a1f7-ed6c0c48fd35 Type: VMAction group
> MANIPULATE_PERMISSIONS with role type USER,  ID: 
> 1cf75959-7992-43fe-a1f7-ed6c0c48fd35
> Type: VMAction group
>  ADD_USERS_AND_GROUPS_FROM_DIRECTORY with role type USER
> 2018-01-10 20:32:33,944-05 INFO  
> [org.ovirt.engine.core.bll.aaa.AddUserCommand]
> (EE-ManagedThreadFactory-engine-Thread-7438) [787deac0] Running command:
> AddUserCommand internal: true. Entities affected :
> ID: aaa0----123456789aaa Type: SystemAction group
> MANIPULATE_USERS with role type ADMIN
> 2018-01-10 20:32:33,981-05 INFO  [org.ovirt.engine.core.dal.
> dbbroker.auditloghandling.AuditLogDirector] 
> (EE-ManagedThreadFactory-engine-Thread-7438)
> [787deac0] EVENT_ID: USER_ADD(149), User 'zho...@ctcnet.com' was added
> successfully to the system.
> 2018-01-10 20:32:34,036-05 INFO  [org.ovirt.engine.core.dal.
> dbbroker.auditloghandling.AuditLogDirector] 
> (EE-ManagedThreadFactory-engine-Thread-7438)
> [787deac0] EVENT_ID: USER_ADD_PERMISSION(850), User/Group
> zho...@ctcnet.com, Namespace DC=ctcnet,DC=com, Authorization provider:
> ctcnet.com-authz was granted permission for Role UserRole on VM
> ubuntu16.04-64, by admin@internal-authz.
>
>
> 2018-01-10 20:38:06,263-05 INFO  
> [org.ovirt.engine.core.sso.utils.AuthenticationUtils]
> (default task-4) [] User zho...@ctcnet.com successfully logged in with
> scopes: ovirt-app-admin ovirt-app-api ovirt-app-portal
> ovirt-ext=auth:sequence-priority=~ ovirt-ext=revoke:revoke-all
> ovirt-ext=token-info:authz-search ovirt-ext=token-info:public-authz-search
> ovirt-ext=token-info:validate ovirt-ext=token:passwor
> d-access
> 2018-01-10 20:38:06,301-05 INFO  
> [org.ovirt.engine.core.bll.aaa.CreateUserSessionCommand]
> (default task-5) [2a6c3d14] Running command: CreateUserSessionCommand
> internal: false.
> 2018-01-10 20:38:06,338-05 INFO  [org.ovirt.engine.core.dal.
> dbbroker.auditloghandling.AuditLogDirector] (default task-5) [2a6c3d14]
> EVENT_ID: USER_VDC_LOGIN(30), User zho...@ctcnet.com@ctcnet.com-authz
> connecting from '10.10.19.228' using session 'z0/9HgB4mjzfDnIN4P/
> fe4A3fzwWIWWcR9xKDvsI/XXgHZApjRp1BCufgtSK6n3kvA/ScdP4qqGqiX01lyJHSQ=='
> logged in.
> 2018-01-10 20:38:06,956-05 ERROR 
> [org.ovirt.engine.core.bll.GetSystemStatisticsQuery]
> (default task-14) [06c80cc6-ad15-4d82-a907-21ab9a5c1cc4] Query execution
> failed due to insufficient permissions.
> 2018-01-10 20:38:07,044-05 ERROR 
> [org.ovirt.engine.core.bll.GetPermissionsForObjectQuery]
> (default task-20) [1b7a6564-534d-4df5-a2b7-52da214b95cd] Query execution
> failed due to insufficient permissions.
> 2018-01-10 20:38:07,045-05 ERROR 
> [org.ovirt.engine.api.restapi.resource.AbstractBackendResource]
> (default task-20) [] Operation Failed: query execution failed due to
> insufficient permissions.
>
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[ovirt-users] user permissions

[Zhong Qiang]

Hi,

   I tried to give a user the permissions for  vms. when this user log in
vm portal ,get  messages  "No VM available."
 this user was granted follow roles:
   UserVmManager
   UserRole

 engine logs:
 2018-01-10 20:32:33,938-05 INFO
[org.ovirt.engine.core.bll.AddPermissionCommand]
(EE-ManagedThreadFactory-engine-Thread-7438)
[9b5a405a-c956-4d69-b286-f6b22cbf3c12] Running command:
AddPermissionCommand internal: false. Entities affected :  ID:
1cf75959-7992-43fe-a1f7-ed6c0c48fd35 Type: VMAction group
MANIPULATE_PERMISSIONS with role type USER,  ID:
1cf75959-7992-43fe-a1f7-ed6c0c48fd35 Type: VMAction group
 ADD_USERS_AND_GROUPS_FROM_DIRECTORY with role type USER
2018-01-10 20:32:33,944-05 INFO
[org.ovirt.engine.core.bll.aaa.AddUserCommand]
(EE-ManagedThreadFactory-engine-Thread-7438) [787deac0] Running command:
AddUserCommand internal: true. Entities affected :
ID: aaa0----123456789aaa Type: SystemAction group
MANIPULATE_USERS with role type ADMIN
2018-01-10 20:32:33,981-05 INFO
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(EE-ManagedThreadFactory-engine-Thread-7438) [787deac0] EVENT_ID:
USER_ADD(149), User 'zho...@ctcnet.com' was added successfully to the
system.
2018-01-10 20:32:34,036-05 INFO
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(EE-ManagedThreadFactory-engine-Thread-7438) [787deac0] EVENT_ID:
USER_ADD_PERMISSION(850), User/Group zho...@ctcnet.com, Namespace
DC=ctcnet,DC=com, Authorization provider: ctcnet.com-authz was granted
permission for Role UserRole on VM ubuntu16.04-64, by admin@internal-authz.


2018-01-10 20:38:06,263-05 INFO
[org.ovirt.engine.core.sso.utils.AuthenticationUtils] (default task-4) []
User zho...@ctcnet.com successfully logged in with scopes: ovirt-app-admin
ovirt-app-api ovirt-app-portal ovirt-ext=auth:sequence-priority=~
ovirt-ext=revoke:revoke-all ovirt-ext=token-info:authz-search
ovirt-ext=token-info:public-authz-search ovirt-ext=token-info:validate
ovirt-ext=token:passwor
d-access
2018-01-10 20:38:06,301-05 INFO
[org.ovirt.engine.core.bll.aaa.CreateUserSessionCommand] (default task-5)
[2a6c3d14] Running command: CreateUserSessionCommand internal: false.
2018-01-10 20:38:06,338-05 INFO
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(default task-5) [2a6c3d14] EVENT_ID: USER_VDC_LOGIN(30), User
zho...@ctcnet.com@ctcnet.com-authz connecting from '10.10.19.228' using
session
'z0/9HgB4mjzfDnIN4P/fe4A3fzwWIWWcR9xKDvsI/XXgHZApjRp1BCufgtSK6n3kvA/ScdP4qqGqiX01lyJHSQ=='
logged in.
2018-01-10 20:38:06,956-05 ERROR
[org.ovirt.engine.core.bll.GetSystemStatisticsQuery] (default task-14)
[06c80cc6-ad15-4d82-a907-21ab9a5c1cc4] Query execution failed due to
insufficient permissions.
2018-01-10 20:38:07,044-05 ERROR
[org.ovirt.engine.core.bll.GetPermissionsForObjectQuery] (default task-20)
[1b7a6564-534d-4df5-a2b7-52da214b95cd] Query execution failed due to
insufficient permissions.
2018-01-10 20:38:07,045-05 ERROR
[org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default
task-20) [] Operation Failed: query execution failed due to insufficient
permissions.
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[ovirt-users] Fresh install - unable to web gui login

[Robin]

Hi,

I'm a new user , just installed Ovirt on a Centos 7, I gotten the web ui 
page but clicking on Login button does nothing. There is a warning


"The redirection URI for client is not registered"

screen capture.

https://filedn.com/l3TGy7Y83c247u0RDYa9fkp/temp/ovirt/overt1.jpg


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

[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] Storage Hardware for Hyperconverged oVirt: Gluster best practice

[Yaniv Kaul]

On Wed, Jan 10, 2018 at 10:12 PM, FERNANDO FREDIANI <
fernando.fredi...@upx.com> wrote:

> I really don't see much need of using hardware raid if you have a SSD-only
> environment. You will get little benefit from hardware cache memory and to
> guarantee the writes you may having the filesystem doing always sync
> operations, similar to what ZFS does. You just need to use a HBA to
> controll all disks ou even software RAID will do the job.


I think there are two interesting questions here:
1. Why would you want RAID? Your data is replicated already on other
Gluster nodes. RAID writes will wear out the SSDs earlier and RAID 'wastes'
additional space. The reason may be because you don't want the node to go
down in case of a single disk malfunction. Fair - but is that the case?
2. I think HW RAID should be higher performing, but that's about it.
Y.


>
> Fernando
>
>
>
> On 10/01/2018 17:34, ov...@fateknollogee.com wrote:
>
>> oVirt + Gluster (hyperconverged) RAID question:
>> I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM (boot
>> drive for o/s install) and 6x 1TB SSD (to be used for Gluster).
>> For the SSDs, is hardware or software RAID preferred or do I use an HBA?
>> The RedHat docs seem to suggest hardware RAID, others on the forum say
>> HBA  or software RAID.
>>
>> What are other folks using?
>> ___
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>>
>
> ___
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Re: [ovirt-users] Storage Hardware for Hyperconverged oVirt: Gluster best practice

[FERNANDO FREDIANI]

I really don't see much need of using hardware raid if you have a 
SSD-only environment. You will get little benefit from hardware cache 
memory and to guarantee the writes you may having the filesystem doing 
always sync operations, similar to what ZFS does. You just need to use a 
HBA to controll all disks ou even software RAID will do the job.


Fernando


On 10/01/2018 17:34, ov...@fateknollogee.com wrote:

oVirt + Gluster (hyperconverged) RAID question:
I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM (boot 
drive for o/s install) and 6x 1TB SSD (to be used for Gluster).

For the SSDs, is hardware or software RAID preferred or do I use an HBA?
The RedHat docs seem to suggest hardware RAID, others on the forum say 
HBA  or software RAID.


What are other folks using?
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Re: [ovirt-users] Shutdown all VM's command line

[Wesley Stewart]

Marcelo,

I would greatly appreciate seeing a script!  It would be an excellent
chance for me to learn a bit about using ovirt from the command line as
well!



On Tue, Jan 9, 2018 at 6:55 PM, Marcelo Leandro 
wrote:

> Do you can do this with python sdk, do you can build a list and shutdown
> all vms. If you want I can make a script to you tomorrow.
>
>
> Marcelo Leandro
>
> Em 09/01/2018 8:30 PM, "Wesley Stewart"  escreveu:
>
>> Is there an easy way to do this?
>>
>> I have a UPS connected to my freenas box, and using NUT and UPSC I can
>> monitor the battery level on my centos 7 host.
>>
>> In the case of an emergency, and my UPS goes below, lets say 40% battery,
>> I would like to make a script to shutdown all running VMs, and then reboot
>> the host.
>>
>> Otherwise I am afraid of sending a straight reboot command to the host
>> without taking care of the virtual machines first.
>>
>> Thanks!
>>
>> ___
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Re: [ovirt-users] Storage Hardware for Hyperconverged oVirt: Gluster best practice

[Roberto Nunin]

Il 10 Gen 2018 20:40,  ha scritto:

oVirt + Gluster (hyperconverged) RAID question:
I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM (boot drive
for o/s install) and 6x 1TB SSD (to be used for Gluster).
For the SSDs, is hardware or software RAID preferred or do I use an HBA?
The RedHat docs seem to suggest hardware RAID, others on the forum say HBA
or software RAID.

What are other folks using?


I'm using hardware raid.

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[ovirt-users] Storage Hardware for Hyperconverged oVirt: Gluster best practice

[ovirt]

oVirt + Gluster (hyperconverged) RAID question:
I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM (boot 
drive for o/s install) and 6x 1TB SSD (to be used for Gluster).

For the SSDs, is hardware or software RAID preferred or do I use an HBA?
The RedHat docs seem to suggest hardware RAID, others on the forum say 
HBA  or software RAID.


What are other folks using?
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[ovirt-users] Hosted Engine and network isolation

[Luca 'remix_tj' Lorenzetto]

Hello,


i just completed the setup of my 4.1 new cluster and i'm validating
against a set of certification tests i did in the earlier version.

One of the test was consisting on isolating the host where
hosted-engine vm is running, setting ports on the switch down. Storage
domain hosting the engine is FC.

Up to 4.0.4, that was the version we was using during that tests,
isolating the host was causing a restart of the engine vm on another
available host with the fence of the isolated host.

Now, with 4.1.8, isolating the host doesn't restart the engine on the
other host, only moves the status of the host2 to
EngineUnexpectedlyDown, while host1 is isolated, with the engine vm
still running on it.

Is this due to storage leases? What should be the right action to take
in case of isolated host for moving engine away?

Thank you,

Luca


-- 
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)

"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)

Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , 
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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
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>>>
>>>
>>> --
>>> Didi
>>>
>>
>>
>> ___
>> 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?

[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?

[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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