[ovirt-users] [Ovirt 4.0] HA VM fail to start on another Host.

[Yaniv Kaul]

On Wed, Apr 26, 2017 at 8:44 AM, knarra <knarra at redhat.com> wrote:

> On 04/26/2017 10:39 AM, TranceWorldLogic . wrote:
>
> Hi,
>
> VM have guest agent install but power management is disable.
>
> Just want to confirm my understanding "HA will not work without power
> management", please say yes or no.
>
> yes.
>
>
> We have Dell server and it access through idrac, I am not sure how to
> setup power management for idrac.
> I tried with drac5 and drac7 and both case while testing I got error
> saying *"*
> *Test failed: [Connection timed out, , ]" *
> But ping is working from ovirt-engine.
>
> Would you please point me to some link how to setup power management for
> DELL idrac ?
>
>
> Thanks,
> ~Rohit
>
> Hi,
>
>     With out configuring powermanagement HA will not work. Below are the
> steps to setup power management. I do not have the link handy but below are
> the steps.
>

4.1 can perform VM HA without power fencing via storage leases, btw.
Y.


>
> 1) Move the host to maintenance
> 2) click on edit button -> select Power Management -> select check box
> 'Enable power management'
> 3) click on "+" button near Add fence agent
> 4) In the address field provide IPMI port which is the ip used for
> accessing your mm console of the server.
> 5) Provide USERName and password to access the console of that machine.
> 6) select the correct provider type.
> 7) click "ok".
>
>     you should be able to set it up. AFAIK, drac5 / 7 needs to be used for
> dell.
>
> Thanks
> kasturi.
>
>
>
>
>
> On Tue, Apr 25, 2017 at 10:29 PM, knarra <knarra at redhat.com> wrote:
>
>> On 04/25/2017 08:45 PM, TranceWorldLogic . wrote:
>>
>> Hi,
>>
>> This is regarding HA VM fail to restart on other host.
>>
>> I have setup, which has 2 host in a cluster let say host1 and host2.
>> And one HA VM (with High priority), say vm1.
>> And also not storage domain is configure on host3 and it available all
>> time.
>>
>> 1> Initially vm1 was running on host2.
>> 2> Then I power OFF host2 to see whether ovirt start vm1 on host1.
>>
>> I found two result in this case as below:
>> 1> Sometime vm1 retrying to start but retrying on host2 itself.
>> 2> Sometime vm1 move in down state without retrying.
>>
>> Can anyone explain about this behaviour ? Or Is this an issue ?
>>
>> Note : I am using Ovirt 4.0.
>>
>> Thanks,
>> ~Rohit
>>
>>
>> _______________________________________________
>> Users mailing listUsers at ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
>>
>> Hi,
>>
>>       If a host is powered off and if powermanagment is enabled engine
>> will fence the host and restarts it. During this process host residing on
>> the vm  will be shutdown and will be restarted on another node. All the
>> events can be seen in the engine UI.
>>
>>     Hope you have not missed to enable power management on the hosts.
>> with out enabling power management even if the vm is marked to be Highly
>> available it will not  be.
>>
>>     Second thing to check for is if the vm has guest-agent installed on
>> it. If the vm does not have guest-agent installed then it wont be restarted
>> on different host. More info on this can be found at  [1].
>>
>>  [1] https://bugzilla.redhat.com/show_bug.cgi?id=1341106#c35
>>
>> Thanks
>>
>> kasturi
>>
>
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>
>
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