[ovirt-users] Re: VM pauses/hangs after migration

2019-05-14 Thread Michal Skrivanek 

> On 3 Oct 2016, at 10:39, Davide Ferrari  wrote:
> 
> 
> 
> 2016-09-30 15:35 GMT+02:00 Michal Skrivanek  >:
> 
> 
> that is a very low level error really pointing at HW issues. It may or may 
> not be detected by memtest…but I would give it a try
> 
> 
> I left memtest86 running for 2 days and no error detected :(
>  
>> The only difference that this host (vmhost01) has is that it was the first 
>> host installed in my self-hosted engine installation. But I have already 
>> reinstalled it from GUI and menawhile I've upgraded to 4.0.4 from 4.0.3.
> 
> does it happen only for the big 96GB VM? The others which you said are 
> working, are they all small?
> Might be worth trying other system stability tests, playing with safer/slower 
> settings in BIOS, use lower CPU cluster, etc
> 
> 
> Yep, it happens only for the 96GB VM. Other VMs with fewer RAM (16GB for 
> example) can be created on or migrated to that host flawlessly. I'll try to 
> play a little with BIOS settings but otherwise I'll have the HW replaced. I 
> was only trying to rule out possible oVirt SW problems due to that host being 
> the first I deployed (from CLI) when I installed the cluster.

I understand. Unfortunately it really does look like some sort of 
incompatibility rather than a sw issue:/

> 
> Thanks!
> 
> -- 
> Davide Ferrari
> Senior Systems Engineer
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[ovirt-users] Re: VM pauses/hangs after migration

2019-05-14 Thread Davide Ferrari 
2016-09-30 15:35 GMT+02:00 Michal Skrivanek :

>
>
> that is a very low level error really pointing at HW issues. It may or may
> not be detected by memtest…but I would give it a try
>
>
I left memtest86 running for 2 days and no error detected :(


> The only difference that this host (vmhost01) has is that it was the first
> host installed in my self-hosted engine installation. But I have already
> reinstalled it from GUI and menawhile I've upgraded to 4.0.4 from 4.0.3.
>
>
> does it happen only for the big 96GB VM? The others which you said are
> working, are they all small?
> Might be worth trying other system stability tests, playing with
> safer/slower settings in BIOS, use lower CPU cluster, etc
>
>
Yep, it happens only for the 96GB VM. Other VMs with fewer RAM (16GB for
example) can be created on or migrated to that host flawlessly. I'll try to
play a little with BIOS settings but otherwise I'll have the HW replaced. I
was only trying to rule out possible oVirt SW problems due to that host
being the first I deployed (from CLI) when I installed the cluster.

Thanks!

-- 
Davide Ferrari
Senior Systems Engineer

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However, it is your responsibility to evaluate the links and attachments you 
choose to click.
If you are uncertain, we always try to help.
Greetings helpd...@actnet.se



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However, it is your responsibility to evaluate the links and attachments you 
choose to click.
If you are uncertain, we always try to help.
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