Hi, you might want to look at the shared_lvm approach that does not use clvm (I couldn´t get that to work properly on Ubuntu 12.04):
http://community.opennebula.org/shared_lvm There is a addon repo for it on github, unfortunately it´s empty ;-) https://github.com/OpenNebula/addon-shared-lvm-single-lock regards, joerg Am 08.08.2014 09:02, schrieb InterNetX - Juergen Gotteswinter: > Hello Nebula Users, > > i am curious what others are using as Storage Backend, since i spent > plenty of time trying to get block LVM or FS LVM to work reliable. CLVM > seems like a cure to me, and from what i could find through Google so > far i am not the only one who experienced things like (everything on a 4 > Node Cluster, seperate Management System for Opennebula/Sunstone - > Nebula 4.6 and 4.7.80): > > - whole Cluster dying / hangs (no more VG/LV Operations possible) if one > Node decides to die > - unreliable if several VM get deployed at once (didnt investigate further) > > i tried: > > - CentOS 6 based KVM Hosts, cman/clvmd based Setup > - CentOS 7 based KVM Hosts, Corosync/clvmd (feels little bit better, but > still not like something i whould consider for Production) > > > What i wanted to avoid is Using NFS as Backend, the Experience over the > last few years with NFS as Backend for Images is not the best in term of > Performance (if you want to make sure your data stays consistent, eg > using sync NFS). > > Block Device, in form of a LV or similar things like ZVOL is where we > got best experience over years with other Virtualization Platforms. > Thats something i want to keep for sure. > > Since the Hostsystems are pretty huge, there wont be just run a hand > full of VM on this Setup (1TB Ram avail. in this Setup for the > beginning). So one has to keep in mind that its not a small scale Setup. > > Every shared experience / or maybe hint how to deal right with CLVM is > highly appreciated. > > Cheers, > > Juergen > _______________________________________________ > Users mailing list > [email protected] > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > _______________________________________________ Users mailing list [email protected] http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
