[one-users] Does Opennebula 2.0.1 support disaster recovery?

[YE LEI]

Hi Tino,

Thank you for the quick feedback, I am glad to see you can help us setup this use case.

We will start the opennebula trial soon, if any issues encountered, I will turn to you ;-)

Best Regards, 

YE Lei 

 

 

-----Original Message-----
From: Tino Vazquez [mailto:tinova at opennebula.org] 
Sent: Friday, February 18, 2011 1:43 AM
To: YE LEI
Cc: Ignacio M. Llorente; users at lists.opennebula.org
Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?

 

Hi YE Lei,

 

The first issue that I see here is the migration, since it is

impossible to migrate a VM from a host that is down.

 

What is possible is the reestablishment of the service in placeB,

where the VM images should be previously placed (to avoid transferring

them, although this is possible as well), so only the VM state (in the

form of snapshots of memory, and deltas of what has changed in the

disk images since the VM was up) needs to be transferred. This

snapshots should reside in a shared filesystem (to avoid losing access

when the host is down), or synced in placeB using DRDB for instance.

OpenNebula at place A can detect that the hosts are down and start the

reestablishment of the service talking with the OpenNebula at place B.

This setup can be achieved with some minor adjustments to the

out-of-the-box OpenNebula.

 

For extra protection, the OpenNebula at placeA could be running two

instances in different servers, to avoid the fail in the disaster

recovery in case the OpenNebula front-end goes down.

 

This is an interesting use case, we will be happy to provide

assistance in the setup of this scenario.

 

Best regards,

 

-Tino

 

--

Constantino Vázquez Blanco, MSc

OpenNebula Major Contributor  / Cloud Researcher

www.OpenNebula.org | @tinova79

 

 

 

On Thu, Feb 17, 2011 at 10:22 AM, YE LEI <Lei.Ye at alcatel-sbell.com.cn> wrote:

> For example, we have a product (in VM) running in the servers on placeA,

> and in case disaster happens on placeA, all servers on placeA are

> damaged, could opennebula migrate this product to the severs on

> placeB(thousands miles away from placeA) which are managed by opennebula

> in the cloud?

> 

> Best Regards,

> YE Lei

> 

> -----Original Message-----

> From: Ignacio M. Llorente [mailto:imllorente at opennebula.org]

> Sent: Thursday, February 17, 2011 4:55 PM

> To: YE LEI

> Cc: users at lists.opennebula.org

> Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster

> recovery?

> 

> Please, could you elaborate on the use case for this? Which

> functionality would you require?

> 

> Thanks

> 

> On Thu, Feb 17, 2011 at 7:58 AM, YE LEI <Lei.Ye at alcatel-sbell.com.cn>

> wrote:

>> Hello,

>> 

>> As mentioned in the mail title, does Opennebula 2.0.1 support disaster

>> recovery cross-regional?

>> 

>> Best Regards,

>> 

>> YE Lei

>> 

>> _______________________________________________

>> Users mailing list

>> Users at lists.opennebula.org

>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org

>> 

>> 

> 

> 

> 

> --

> Ignacio M. Llorente, PhD, MBA

> Project co-Lead and Director

> OpenNebula - The Open Source Toolkit for Cloud Computing

> www.OpenNebula.org | imllorente at opennebula.org

> _______________________________________________

> Users mailing list

> Users at lists.opennebula.org

> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org

> 

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