Yes, I think it does. This article was written before mayor changes were made 
(who elects the new poolmaster and such). Now that we should use XenServer 
poolHA, this procedure also should be altered accordingly. 

When I have some spare time, I’ll document how to properly do it with regards 
to poolHA being turned on. If you have questions before that, just ping me.

Regards,
Remi


> On 12 Jun 2015, at 13:31, Vadim Kimlaychuk <vadim.kimlayc...@elion.ee> wrote:
> 
> Hi,
> 
>       I did the same as Martin at CS 4.5.1 and it went OK. Does this depend 
> on CS version?
> 
> Vadim.
> 
> -----Original Message-----
> From: Mārtiņš Jakubovičs [mailto:mart...@vertigs.lv] 
> Sent: Friday, June 12, 2015 10:40 AM
> To: users@cloudstack.apache.org
> Subject: Re: XenServer upgrade in CloudStack environment
> 
> Hello,
> 
> No, I didn't. Didn't know about such upgrade procedure. I will follow this 
> article next time.
> 
> Thanks a lot!
> 
> On 2015.06.12. 10:21, Praveen B wrote:
>> Hi Martins,
>> 
>> Have you unmanaged your xen cluster from cloudstack UI before xen upgrade?
>> This is a mandatory step that disconnects all xen servers in the 
>> cluster from while upgrade is going on.
>> 
>> You can go through
>> http://www.shapeblue.com/how-to-upgrade-an-apache-cloudstack-citrix-xe
>> nserver-cluster/ KB article that explains xen cluster upgrade in 
>> cloudstack.
>> 
>> Thanks,
>> Praveen Kumar,
>> Founder, PSI Cloud Solutions
>> 
>> On Fri, Jun 12, 2015 at 12:41 PM, Mārtiņš Jakubovičs 
>> <mart...@vertigs.lv>
>> wrote:
>> 
>>> Hello all,
>>> 
>>> Yesterday I upgraded one of my CloudStack Cluster's which run on 
>>> XenServer. As XenServer dokumentation suggest, after applying 
>>> patches, need to restart a host, and first must be pool master 
>>> server. I set master server to maintenance mode in CS, when all 
>>> instances migrated I restarted a host. After some time I start to 
>>> receive e-mails from CS, that other hosts in cluster are down too, 
>>> not only a master server. My compute offerings are HA enabled so I 
>>> receive e-mails with failed restart attempt on HA instances. At 
>>> least, when master come online CS didn't restart any instances and I get 
>>> away with just a little scare.
>>> 
>>> What is correct way to do upgrade no XenServer hosts in CloudStack 
>>> environment? Patches, like XS 6.2 SP1 < 
>>> http://support.citrix.com/article/CTX139788> require to restart pool 
>>> master first.
>>> 
>>> I use ACS 4.3.2 with XenServer 6.2.
>>> 
>>> Best regards,
>>> Martins
>>> 
> 

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