[ovirt-users] HE multipath problem.

[Simone Tiraboschi]

On Wed, Feb 3, 2016 at 1:54 PM, Elad Ben Aharon <ebenahar at redhat.com> wrote:

> Yes, you're right.
>
> # The following are used only for iSCSI storage
> iqn=
> portal=
> user=
> password=
> port=
>
>
> Simone, what do you think, will it be possible to add targets in
> hosted-engine.conf as a workaround?
>

I don't see any possible workaround here. We need to implement something in
ovrt-ha-agent for that, it's an RFE for 4.0, let's see if we can get it
back to 3.6.z


>
>
> On Wed, Feb 3, 2016 at 2:46 PM, gflwqs gflwqs <gflwqs at gmail.com> wrote:
>
>> Yes but i have to change the config for the HE in
>> /etc/ovirt-hosted-engine/hosted-engine.conf so how should that look like?
>> There is only one variable for storage and since there is dual pathing
>> there is 2 ip:s so is there some other config for multipathing?
>>
>> storage=x.x.x.x
>>
>> 2016-02-03 13:17 GMT+01:00 Elad Ben Aharon <ebenahar at redhat.com>:
>>
>>> The scenario of manually connecting the hosted-engine host to several
>>> paths wasn't tested before, but by theory it should work.
>>> As you said, the host should be set to global maintenance, disconnected
>>> from the single iSCSI session [1] and reconnected to the dual paths [2].
>>> Then host re-activation.
>>>
>>> [1]  # iscsiadm -m session -u
>>>      # iscsiadm -m node -o delete
>>> [2] # iscsiadm -m discovery -t sendtargets -p target_IP:port
>>>     # iscsiadm -m node target_name -l
>>>
>>> On Wed, Feb 3, 2016 at 12:12 PM, gflwqs gflwqs <gflwqs at gmail.com> wrote:
>>>
>>>> So does that mean i can change it if i put the HE into global
>>>> maintenance and restart it?
>>>> If that is possible then it is ok for me?
>>>>
>>>> /Christian
>>>>
>>>> 2016-02-03 11:07 GMT+01:00 Elad Ben Aharon <ebenahar at redhat.com>:
>>>>
>>>>> Hi,
>>>>>
>>>>> Deployment over more than one path is currently not supported. There
>>>>> is a request for it:
>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1193961
>>>>> I can't think of a way for manually change to dual paths and keep the
>>>>> VM running without interruptions.
>>>>>
>>>>> Adding Simone and Nir who might have an idea.
>>>>>
>>>>>
>>>>> On Wed, Feb 3, 2016 at 10:37 AM, gflwqs gflwqs <gflwqs at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi List,
>>>>>>
>>>>>> I have installed the hosted engine over iscsi but have a problem
>>>>>> getting it to install over the multipath, even though i can see the
>>>>>> multipath device from the host with multipath -ll.
>>>>>>
>>>>>> When i get to the point in the HE installer where i should choose the
>>>>>> disk i only see the underlying devices like sdb sdc. So if i choose one of
>>>>>> those it results in that it will only use one of the paths!
>>>>>>
>>>>>> My questions is:
>>>>>> - Is there a bug in the installer script or am i doing something
>>>>>> wrong?
>>>>>> - I now have a running HE and would like to manually change the
>>>>>> single path to dual, how do i accomplish this?
>>>>>>
>>>>>> I am running  ovirt 3.5.6.2.
>>>>>>
>>>>>> Regards
>>>>>> Christian
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at ovirt.org
>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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