Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
Hi YE Lei, If there are technical requirements that OpenNebula needs to implement any of the fault tolerance functionality, it will certainly be added to the community release. But I'd like to stress that the fault tolerance functionality is overall a matter of integration and also deployment, specific to the target infrastructure, and thus to achieve it is essential a know how that is accessible through professional services, and it is achievable with the current code base of OpenNebula. Best regards, -Tino -- Constantino Vázquez Blanco, MSc OpenNebula Major Contributor www.OpenNebula.org | @tinova79 On Wed, Mar 2, 2011 at 2:43 AM, YE LEI wrote: > OK, get it. > Then, Does OpenNebula team have a plan to implement this feature (when > resource is available) in later releases, for example, 2.3 or later? > > Best Regards, > YE Lei > > -Original Message- > From: Tino Vazquez [mailto:tin...@opennebula.org] > Sent: Tuesday, March 01, 2011 6:40 PM > To: YE LEI > Cc: users@lists.opennebula.org; Manikanta Kattamuri > Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? > > Hi YE Lei, > > First of all, I would like to clarify that OpenNebula is fully > open-source, not a limited edition of OpenNebulaPro, which is the > certified and supported version of OpenNebula, packaged with selected > addons. You can check the release notes of OpenNebulaPro here [1]. > > That being said, the oned's redundacy issue is a matter of the > architecture of the deployment. The community hasn't got (yet?) the > resources to take this into practice, and that is why C12G Labs > provides it through its professional services. > > Regards, > > -Tino > > [1] https://support.opennebula.pro/entries/357059-opennebula-2-0-release-notes > > -- > Constantino Vázquez Blanco, MSc > OpenNebula Major Contributor > www.OpenNebula.org | @tinova79 > > > > On Tue, Mar 1, 2011 at 3:14 AM, YE LEI wrote: >> Hi Tino, >> Thank you for your quick feedback, >> Just one question, do you mean that the ONE redundancy will be only provided >> by opennebula commercial edition from C12G labs, the open source branch will >> NOT go to this direction? >> >> >> Best Regards, >> YE Lei >> >> >> -----Original Message- >> From: Tino Vazquez [mailto:tin...@opennebula.org] >> Sent: Monday, February 28, 2011 11:05 PM >> To: YE LEI >> Cc: users@lists.opennebula.org; Manikanta Kattamuri >> Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? >> >> 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 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 >>> wrote: >>>> we have tried some poc's to achieve this sometime back >>>> >>>> 2011/2/17 Tino Vazquez >>>>> >>>>> 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 >>
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
OK, get it. Then, Does OpenNebula team have a plan to implement this feature (when resource is available) in later releases, for example, 2.3 or later? Best Regards, YE Lei -Original Message- From: Tino Vazquez [mailto:tin...@opennebula.org] Sent: Tuesday, March 01, 2011 6:40 PM To: YE LEI Cc: users@lists.opennebula.org; Manikanta Kattamuri Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? Hi YE Lei, First of all, I would like to clarify that OpenNebula is fully open-source, not a limited edition of OpenNebulaPro, which is the certified and supported version of OpenNebula, packaged with selected addons. You can check the release notes of OpenNebulaPro here [1]. That being said, the oned's redundacy issue is a matter of the architecture of the deployment. The community hasn't got (yet?) the resources to take this into practice, and that is why C12G Labs provides it through its professional services. Regards, -Tino [1] https://support.opennebula.pro/entries/357059-opennebula-2-0-release-notes -- Constantino Vázquez Blanco, MSc OpenNebula Major Contributor www.OpenNebula.org | @tinova79 On Tue, Mar 1, 2011 at 3:14 AM, YE LEI wrote: > Hi Tino, > Thank you for your quick feedback, > Just one question, do you mean that the ONE redundancy will be only provided > by opennebula commercial edition from C12G labs, the open source branch will > NOT go to this direction? > > > Best Regards, > YE Lei > > > -Original Message- > From: Tino Vazquez [mailto:tin...@opennebula.org] > Sent: Monday, February 28, 2011 11:05 PM > To: YE LEI > Cc: users@lists.opennebula.org; Manikanta Kattamuri > Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? > > 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 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 >> wrote: >>> we have tried some poc's to achieve this sometime back >>> >>> 2011/2/17 Tino Vazquez >>>> >>>> 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
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
Hi YE Lei, First of all, I would like to clarify that OpenNebula is fully open-source, not a limited edition of OpenNebulaPro, which is the certified and supported version of OpenNebula, packaged with selected addons. You can check the release notes of OpenNebulaPro here [1]. That being said, the oned's redundacy issue is a matter of the architecture of the deployment. The community hasn't got (yet?) the resources to take this into practice, and that is why C12G Labs provides it through its professional services. Regards, -Tino [1] https://support.opennebula.pro/entries/357059-opennebula-2-0-release-notes -- Constantino Vázquez Blanco, MSc OpenNebula Major Contributor www.OpenNebula.org | @tinova79 On Tue, Mar 1, 2011 at 3:14 AM, YE LEI wrote: > Hi Tino, > Thank you for your quick feedback, > Just one question, do you mean that the ONE redundancy will be only provided > by opennebula commercial edition from C12G labs, the open source branch will > NOT go to this direction? > > > Best Regards, > YE Lei > > > -Original Message- > From: Tino Vazquez [mailto:tin...@opennebula.org] > Sent: Monday, February 28, 2011 11:05 PM > To: YE LEI > Cc: users@lists.opennebula.org; Manikanta Kattamuri > Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? > > 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 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 >> wrote: >>> we have tried some poc's to achieve this sometime back >>> >>> 2011/2/17 Tino Vazquez >>>> >>>> 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 >>> i
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
Hi Tino, Thank you for your quick feedback, Just one question, do you mean that the ONE redundancy will be only provided by opennebula commercial edition from C12G labs, the open source branch will NOT go to this direction? Best Regards, YE Lei -Original Message- From: Tino Vazquez [mailto:tin...@opennebula.org] Sent: Monday, February 28, 2011 11:05 PM To: YE LEI Cc: users@lists.opennebula.org; Manikanta Kattamuri Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery? 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 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 > wrote: >> we have tried some poc's to achieve this sometime back >> >> 2011/2/17 Tino Vazquez >>> >>> 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 >>> 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, >>>
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
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 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 > wrote: >> we have tried some poc's to achieve this sometime back >> >> 2011/2/17 Tino Vazquez >>> >>> 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 >>> 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 w
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
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 wrote: > we have tried some poc's to achieve this sometime back > > 2011/2/17 Tino Vazquez >> >> 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 >> 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 >> > 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
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 wrote: > we have tried some poc's to achieve this sometime back > > 2011/2/17 Tino Vazquez >> >> 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 >> 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 >> > 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
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
we have tried some poc's to achieve this sometime back 2011/2/17 Tino Vazquez > 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?). > 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. 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 > 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 > > 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
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
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:tin...@opennebula.org] Sent: Friday, February 18, 2011 1:43 AM To: YE LEI Cc: Ignacio M. Llorente; users@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 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 > 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
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 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 > 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
Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?
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 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
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 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
[one-users] Does Opennebula 2.0.1 support disaster recovery?
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
