[ovirt-users] Fwd: Re: Hosts lost the communication with FC Storage Domains

[Anantha Raghava]

Hello Yaniv,

I sincerely apologize for pushing you guys.

We have taken the steps suggested by you only to realize that the 
Storage volumes are having NTFS format instead of LVM2!! Hence become 
not accessible. We were able to create new LUNs and add them properly as 
storage domains.

But only surprising part is all running VMs continued even after the 
storage domain and DC going down till such time, we manually shut them 
down. How is this possible?

++looping Nir

-- 

Thanks & Regards,


Anantha Raghava

eXza Technology Consulting & Services



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On Thursday 08 December 2016 06:15 PM, Yaniv Kaul wrote:
> On Thu, Dec 8, 2016 at 10:33 AM, Anantha Raghava 
> <raghav at exzatechconsulting.com <mailto:raghav at exzatechconsulting.com>> 
> wrote:
>
>     Hello,
>
>     Still struggling with the same issues. Can someone urgently guide
>     us to resolve this?
>
>
> 1. Please upgrade to the latest release first.
> 2. Please ensure that on the host everything is properly connected, 
> zoned, etc. That it can access those LUNs.
> 3. Please ensure no one erased the domain LUNs - are the VMs using it 
> as well?
> 4.  Please provide the relevant VDSM log - when things started to go 
> south - as well as Engine log.
>
> I don't think that's the right venue for urgent requests, btw.
> Y.
>
>
>     -- 
>
>     Thanks & Regards,
>
>
>     Anantha Raghava
>
>     eXza Technology Consulting & Services
>
>     Ph: +91-9538849179 <tel:%2B91-9538849179>, E-mail:
>     raghav at exzatechconsulting.com <mailto:raghav at exzatechconsulting.com>
>
>     URL: http://www.exzatechconsulting.com
>     <http://www.exzatechconsulting.com/>
>
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>
>     -------- Forwarded Message --------
>     Subject: 	Re: Hosts lost the communication with FC Storage Domains
>     Date: 	Wed, 7 Dec 2016 17:30:31 +0530
>     From: 	Anantha Raghava <raghav at exzatechconsulting.com>
>     <mailto:raghav at exzatechconsulting.com>
>     Organization: 	eXza Technology Consulting & Services
>     To: 	users <users at ovirt.org> <mailto:users at ovirt.org>
>
>
>
>     Hello,
>
>     No luck with this? Awaiting urgent response. Also attached the
>     vdsm and supervdsm logs from one of the hosts.
>
>     Please provide guidance to solve this issue.
>
>     -- 
>
>     Thanks & Regards,
>
>
>     Anantha Raghava
>
>     eXza Technology Consulting & Services
>
>     Ph: +91-9538849179 <tel:%2B91-9538849179>, E-mail:
>     raghav at exzatechconsulting.com <mailto:raghav at exzatechconsulting.com>
>
>
>     Do not print this e-mail unless required. Save Paper & trees.
>
>     On Monday 05 December 2016 11:16 AM, Anantha Raghava wrote:
>>
>>     Hi,
>>
>>     We have a single cluster with 6 Nodes in a single DC and added 4
>>     FC Storage domains. All the while it was working fine,
>>     migrations, creation of new VMs everything were working fine.
>>     Now, all of a sudden we see the error message "vdsm is unable to
>>     communicate with Master domain ......." and all storage domains,
>>     including DC are down. But all Hosts are up, all VMs are running
>>     without any issues. But migrations stopped, we cannot create new
>>     VMs, we cannot start a shutdown VM.
>>
>>     Can someone help us trouble shoot the issue?
>>
>>
>>     By the way, we are running oVirt Version 4.0.1.
>>     -- 
>>
>>     Thanks & Regards,
>>
>>
>>     Anantha Raghava
>>
>>     eXza Technology Consulting & Services
>>
>>
>>     Do not print this e-mail unless required. Save Paper & trees.
>>
>
>
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