Re: [ovirt-users] Disabling migration when there is a problem with storage

[Mark Steele]

I found that setting the cluster's 'Resilience Policy' to 'Do Not Migrate
Virtual Machines' seems to have the desired effect while still letting me
manually and via 'Maintenance' migrate VM's

Thanks all

***
*Mark Steele*
CIO / VP Technical Operations | TelVue Corporation
TelVue - We Share Your Vision
800.885.8886 x128 | mste...@telvue.com | http://www.telvue.com
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Re: [ovirt-users] Disabling migration when there is a problem with storage

[Ala Hino]

Hi Mark,

You can disable VM migration:
When editing a vm, in the 'Host' tab there is 'Migration option' drop-down 
where you can choose 'Do not allow migration' or 'Allow manual migration only'.

Hope this helps.

Regards,
Ala

- Original Message -
> From: "Mark Steele" <mste...@telvue.com>
> To: users@ovirt.org
> Sent: Wednesday, February 3, 2016 4:39:43 PM
> Subject: [ovirt-users] Disabling migration when there is a problem with   
> storage
> 
> Hello,
> 
> I'd like to know if there is a way to configure ovirt ( oVirt Engine Version:
> 3.5.0.1-1.el6) to NOT migrate VM's when there is a problem with attached
> storage.
> 
> Scenario - our storage array that hosts all our VM disks failed. When that
> happened, ovirt attempted to migrate running VM's from one host to another.
> Unfortunately this left many of the VM's in a 'migrating to' state that
> could only be resolved by restarting the HV's
> 
> I'd prefer to have ovirt simply hang the VM's until disk IO returns.
> 
> Is this possible?
> 
> ***
> Mark Steele
> CIO / VP Technical Operations | TelVue Corporation
> TelVue - We Share Your Vision
> 800.885.8886 x128 | mste...@telvue.com | http://www.telvue.com
> twitter: http://twitter.com/telvue | facebook:
> https://www.facebook.com/telvue
> 
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
> 
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[ovirt-users] Disabling migration when there is a problem with storage

[Mark Steele]

Hello,

I'd like to know if there is a way to configure ovirt (oVirt Engine
Version: 3.5.0.1-1.el6) to NOT migrate VM's when there is a problem with
attached storage.

Scenario - our storage array that hosts all our VM disks failed. When that
happened, ovirt attempted to migrate running VM's from one host to another.
Unfortunately this left many of the VM's in a 'migrating to' state that
could only be resolved by restarting the HV's

I'd prefer to have ovirt simply hang the VM's until disk IO returns.

Is this possible?

***
*Mark Steele*
CIO / VP Technical Operations | TelVue Corporation
TelVue - We Share Your Vision
800.885.8886 x128 | mste...@telvue.com | http://www.telvue.com
twitter: http://twitter.com/telvue | facebook:
https://www.facebook.com/telvue
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Users mailing list
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Re: [ovirt-users] Disabling migration when there is a problem with storage

[Dan Yasny]

When a storage error occurs, VMs should pause, not migrate. However, if the
VMs were io-idle, then pause (qemu EIO) might have not been triggered
before hosts started dropping into non-op.
...which triggered a migration storm for HA-enabled VMs, racing with VMs
pausing somehow (can't tell without diving into the logs for sure).

I haven't seen it happen in any of my setups, probably a new issue

On Wed, Feb 3, 2016 at 9:39 AM, Mark Steele  wrote:

> Hello,
>
> I'd like to know if there is a way to configure ovirt (oVirt Engine
> Version: 3.5.0.1-1.el6) to NOT migrate VM's when there is a problem with
> attached storage.
>
> Scenario - our storage array that hosts all our VM disks failed. When that
> happened, ovirt attempted to migrate running VM's from one host to another.
> Unfortunately this left many of the VM's in a 'migrating to' state that
> could only be resolved by restarting the HV's
>
> I'd prefer to have ovirt simply hang the VM's until disk IO returns.
>
> Is this possible?
>
> ***
> *Mark Steele*
> CIO / VP Technical Operations | TelVue Corporation
> TelVue - We Share Your Vision
> 800.885.8886 x128 | mste...@telvue.com | http://www.telvue.com
> twitter: http://twitter.com/telvue | facebook:
> https://www.facebook.com/telvue
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
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