Hi, The upcoming 2.2 release will be focused on fault tolerance, it will provide the features covered in [1].
The oned redundacy is being studied on some specific deployments, that expertise is available through C12G Labs [2]. Regards, -Tino [1] http://opennebula.org/documentation:rel2.2:ftguide [2] http://c12g.com/ -- Constantino Vázquez Blanco, MSc OpenNebula Major Contributor www.OpenNebula.org | @tinova79 On Mon, Feb 28, 2011 at 3:00 AM, YE LEI <lei...@alcatel-sbell.com.cn> wrote: > Hi Tino, > Do you have the schedule for these new features? > > Best Regards, > YE Lei > > -----Original Message----- > From: Tino Vazquez [mailto:tin...@opennebula.org] > Sent: Monday, February 21, 2011 7:48 PM > To: Manikanta Kattamuri > Cc: YE LEI; users@lists.opennebula.org > Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? > > Hi, > > comments inline, > > > On Fri, Feb 18, 2011 at 4:52 AM, Manikanta Kattamuri > <mani.kattam...@hexagrid.com> wrote: >> we have tried some poc's to achieve this sometime back >> >> 2011/2/17 Tino Vazquez <tin...@opennebula.org> >>> >>> 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. >> >> >> since place A and place B are quiet distant and we did not want to share the >> same file system, we used rsync to keep the disks in check. if the file >> system is a failure at place A then the latest image would used at placeB >> else the images are synced before starting. >>> >>> 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. >>> >> Can you give any pointers on this, as i have achieved it using a script >> above oned to detect failures and request place B to start the vm's after >> syncing with the current vm. I would like to know how oned can be configured >> to talk to placeB ( i suspect you are talking about hooks?). > > I was talking about a new set of drivers to enable this kind of behavior. > >> >>> >>> 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. >>> >> isn't this being discussed in another thread about oned redundancy?. which >> is presently not present in one. > > Sure, this is WIP > > Regards, > > -Tino > > -- > Constantino Vázquez Blanco, MSc > OpenNebula Major Contributor / Cloud Researcher > www.OpenNebula.org | @tinova79 > >>> >>> 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...@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:imllore...@opennebula.org] >>> > Sent: Thursday, February 17, 2011 4:55 PM >>> > To: YE LEI >>> > Cc: users@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...@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@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 | imllore...@opennebula.org >>> > _______________________________________________ >>> > Users mailing list >>> > Users@lists.opennebula.org >>> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >>> > >>> _______________________________________________ >>> Users mailing list >>> Users@lists.opennebula.org >>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >> >> >> >> -- >> K Manikanta Swamy >> +919059014442 >> > _______________________________________________ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org