[ovirt-users] Engine Hardware Crash

[Itamar Heim]

On 09/14/2014 11:28 AM, Maor Lipchuk wrote:
> Hi Maurice,
>
> In the mail I sent, I proposed to add those Hosts to a new engine.
> Those VMs should be registered as external VMs in your engine, and then you can manage them and start, stop or reboot them.

I do *not* think this is correct. the new engine will only show the VMs.
it will not know of the storage domains or the disks, etc.
I think this will *not* work!

> before doing that, please also set InstallVds parameter in the Data Base at vdc_options table to false, to prevent the Host to be re-deployed when it is being registered to the new engine (see [1]).
>
> p.s. After stabilizing your environment,
> you might be interested to upgrade to 3.5.
> In oVirt 3.5, there is a new DR feature which should help recovering the engine from those scenarios which you just encountered (see [2]).
>
>
> [1] update vdc_options set option_value = false where option_name = 'InstallVds'
> [2] http://www.ovirt.org/Features/ImportStorageDomain#Disaster_Recovery_flows
>
> Regards,
> Maor
>
>
> ----- Original Message -----
>> From: "Maurice James" <mjames at media-node.com>
>> To: dougsland at redhat.com
>> Cc: "users" <users at ovirt.org>
>> Sent: Friday, September 12, 2014 10:18:01 PM
>> Subject: Re: [ovirt-users] Engine Hardware Crash
>>
>> I am running 3.4.2 in that environment. I was wondering if there is a way to
>> start, stop, reboot the VMs that are present on the hosts that are still
>> running? I did not see any emails from Maor. Thanks
>>
>>
>>
>> ----- Original Message -----
>> From: "Douglas Schilling Landgraf" <dougsland at redhat.com>
>> To: "Maurice James" <mjames at media-node.com>, "Itamar Heim" <iheim at redhat.com>
>> Cc: "users" <users at ovirt.org>
>> Sent: Friday, September 12, 2014 12:26:11 AM
>> Subject: Re: [ovirt-users] Engine Hardware Crash
>>
>> On 09/11/2014 08:50 AM, Maurice James wrote:
>>> No back up, just the hard drive. The data is fine its the server board that
>>> is fried. I will eventually get a replacement server that I can use. So
>>> this brings me back to my original question below:
>>>
>>>
>>> How do I, or can I use vdsm to interact with the VMs that are still present
>>> on those hosts without the engine?
>>>
>>
>> Hi Maurice,
>>
>> What's the oVirt environment that you were running? 3.3, 3.4, 3.5?
>> When you say interact, is it about to start the VM that are you asking?
>> Could you please clarify? Have you tried the Maor's suggestion?
>>
>> For now, I would say to start with:
>> http://wiki.ovirt.org/VdsClient
>>
>> Thanks
>> Douglas
>>
>>>
>>>
>>>
>>> ----- Original Message -----
>>> From: "Itamar Heim" <iheim at redhat.com>
>>> To: "Maurice James" <mjames at media-node.com>, "Yair Zaslavsky"
>>> <yzaslavs at redhat.com>
>>> Cc: "users" <users at ovirt.org>
>>> Sent: Wednesday, September 10, 2014 5:20:47 PM
>>> Subject: Re: [ovirt-users] Engine Hardware Crash
>>>
>>> On 09/10/2014 06:45 PM, Maurice James wrote:
>>>> Yes the db and engine are offline
>>>>
>>>
>>> do you have a backup of the db to restore the engine?
>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From: "Yair Zaslavsky" <yzaslavs at redhat.com>
>>>> To: "Maurice James" <mjames at media-node.com>
>>>> Cc: "users" <users at ovirt.org>, "Maor Lipchuk" <mlipchuk at redhat.com>,
>>>> "Allon Mureinik" <amureini at redhat.com>
>>>> Sent: Wednesday, September 10, 2014 9:34:41 AM
>>>> Subject: Re: [ovirt-users] Engine Hardware Crash
>>>>
>>>> Just to make sure, this means that when it comes to file system , etc..
>>>> you also have your storage resources available, right?
>>>>
>>>> You lost the engine with the db, am I correct ?
>>>>
>>>> I'm CCing someone that might have the exact answer for that.
>>>>
>>>>
>>>> ----- Original Message -----
>>>>> From: "Maurice James" <mjames at media-node.com>
>>>>> To: "users" <users at ovirt.org>
>>>>> Sent: Wednesday, September 10, 2014 3:46:35 PM
>>>>> Subject: [ovirt-users] Engine Hardware Crash
>>>>>
>>>>> I just recently had the hardware that acts as the engine crash. I have a
>>>>> blinking amber light on the server. I have servers on the remaining
>>>>> hosts.
>>>>> How do I, or can I use vdsm to interact with the VMs that are still
>>>>> present
>>>>> on those hosts without the engine?
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>
>>> _______________________________________________
>>> Users mailing list
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>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>
>>
>> --
>> Cheers
>> Douglas
>> _______________________________________________
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>> http://lists.ovirt.org/mailman/listinfo/users
>>
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