[Linux-cluster] Status of fencing KVM guests across multiple hosts

[Subhendu Ghosh]

On 06/21/2013 02:34 AM, Vladislav Bogdanov wrote:
> 21.06.2013 04:46, Digimer wrote:
>> Hi all,
>>
>>   I want to update the Guest Fencing docs on
>> http://clusterlabs.org/wiki/Guest_Fencing and write a little tutorial as
>> well. The CL page says;
>>
>> For Guests Running on Multiple Hosts
>>
>> Not yet supported, check back soon.
>>
>> Rough commands:
>>
>>   I wanted to know where this was today, as I think that's a little out
>> of date now. Has support been added? If not, does it work at a technical
>> level and simply isn't supported by Red Hat?
> 
> It works for latest fedoras out-of-the-box, but was removed from EL6.4.
> Package names changed a bit (qpid -> qmf), but idea still the same.
> 
> http://oss.clusterlabs.org/pipermail/pacemaker/2013-June/018662.html
> 
> https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.4_Technical_Notes/matahari.html
> 
>>
>>   Cheers
>>
> 

Note: if you have guest migration capability and use it, then your fencing
operation
should coordinate with the guest migration/location control. RHEV/oVirt or vSphere
are the typical control points. Otherwise you have dueling mechanisms for
controlling
the KVM guests.

cheers
Subhendu