[ovirt-users] HE multipath problem.

Elad Ben Aharon ebenahar at redhat.com
Wed Feb 3 12:17:58 UTC 2016


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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