Hello, OpenNebula can't have control overt the internal live-migration process of the hypervisors. The iscsi actions should be perfectly synchronized with the live migration, otherwise an I/O error is likely to occur. That's the reason why this isn't out of the box supported with OpenNebula.
I believe the correct way to approach this is through hypervisor hooks: http://libvirt.org/hooks.html#qemu_migration cheers, Jaime On Tue, May 15, 2012 at 8:56 PM, fc lists <[email protected]> wrote: > Hi, > > I am trying to hook up a NexentaStor ISCSI server with opennebula 3.4.1 > > I created a DS_MAD and TM_MAD out of the current "iscsi" ones and i got > everything working fine ... other then live migration. > > Things goes like this: > > Create New Virtual Machine > > oneadmin ssh to HOST1 > - login into ISCSI > - LN the system datastore (NFS Shared) disk to the ISCSI device > > live migrate from HOST1 to HOST2 > > At this point HOST 2 has no knowledge of ISCSI device ... because the FE > never performed ISCSI login on host2. > > "at first" i thought that the "MV" TM_MAD would be called for > live-migration the same way it get executed for cold migration, but it does > not seem so on my system. > Cold migration works just fine because it actively login the ISCSI target > in the HOST2 , with live-migration it seems like ONE does not really > interact with the cluster other then performing the libvirt/kvm live > migration. > > As a proof of concept it was enough to manually login the ISCSI target on > HOST2 and live-migration worked perfectly. > > Is there any hook that i can use to manage this operation ? Ideally it > would be enough to get the Image SOURCE available to get it to work. > > Thanks > -FC > > _______________________________________________ > Users mailing list > [email protected] > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | [email protected]
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