Hi! I think you mixed Nicolas and me up. Anyway, if you could create the addon addon-shared-lvm-single-lock and the user mheder for it, that would be great! I would start committing into it some time in January.
Cheers! Mihály On 18 December 2013 15:03, Javier Fontan <[email protected]> wrote: > Hi Nicolas, > > Sorry for the huge delay. Releasing a new version does not bring down the > amount of work :/ > > Do you want me to create the repo for the new addon? I can use the name > "addon-shared-lvm-single-lock" > and add your user "nagius" as admin to the repo. > > Cheers > > > On Tue, Dec 3, 2013 at 6:16 PM, Nicolas AGIUS <[email protected]>wrote: > >> Hi, >> >> Maybe, you should have a look at the CXM project [1] and the CXM driver >> [2].. >> It's a little bit old now, but it has been designed to work with cLVM on >> XEN hosts, and provide load-balancing and automatic failover. >> >> It can also work without cLVM. In this setup, Opennebula is not part of >> the cLVM cluster, all Xen nodes are read-writing LVM metadatas. That's >> working good, but it's dangerous and slower. >> >> Cheers, >> Nicolas AGIUS >> >> [1] https://github.com/nagius/cxm >> [2] http://opennebula.org/software:ecosystem:cxm_drivers >> >> >> -------------------------------------------- >> En date de : Mar 3.12.13, Jaime Melis <[email protected]> a écrit : >> >> Objet: Re: [one-dev] announcing addon plan: shared-lvm-single-lock >> À: "Mihály Héder" <[email protected]> >> Cc: [email protected], [email protected] >> Date: Mardi 3 décembre 2013, 12h24 >> >> Hi Mihály, >> I'm sincerely looking forward to seeing this >> addon and I think it would help to many OpenNebula >> users. >> Do you have anything already done? Maybe I could >> take a quick look at it and give you some feedback? >> >> >> As a general recommendation I'd like to point >> out that it would be great if you could reuse code from >> other DS and TM drivers. >> cheers, >> Jaime >> >> >> >> >> On Wed, Nov 27, 2013 >> at 11:17 PM, Mihály Héder <[email protected]> >> wrote: >> >> >> Hi, >> >> I want to announce my plans to create >> addon-shared-lvm-single-lock which would be the current >> version of the patches detailed here: >> http://wiki.opennebula.org/shared_lvm >> >> >> >> >> In a nutshell: the patch lets OpenNebula to use >> commercial off the shelf SANs that are providing a few >> pre-configured LUN-s as block devices over iSCSI, AoE or FC. >> >> >> The block devices in question are mounted on all the >> nodes and on the frontend, too. The device is split up to >> logical volumes that are only active on the node that runs >> the VM in question but are present everywhere. This allows >> live migration that is facilitated by migration hooks which >> activate and deactivate volumes as the instance travels. >> >> >> >> This way, in certain cases the use of cLVM can be spared as >> all nodes except the frontend can run with read-only lvm >> metadata setting, meaning that local locking is sufficient >> on the frontend. This is only as long as other storage >> drivers don't try to modify any lvm vgs on the nodes - >> they won't work because of the read-only metadata. >> >> >> >> >> Please comment on the matter! Thanks! >> >> Cheers >> Mihály Héder >> MTA SZTAKI HBIT >> >> >> _______________________________________________ >> >> Dev mailing list >> >> [email protected] >> >> http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org >> >> >> >> >> >> -- >> Jaime Melis >> Project Engineer >> OpenNebula - Flexible Enterprise Cloud Made Simple >> www.OpenNebula.org | [email protected] >> >> >> >> >> -----La pièce jointe associée suit----- >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org >> > > > > -- > Javier Fontán Muiños > Developer > OpenNebula - The Open Source Toolkit for Data Center Virtualization > www.OpenNebula.org | @OpenNebula | github.com/jfontan > > _______________________________________________ > Dev mailing list > [email protected] > http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org > >
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