2012/8/23 André Monteiro <[email protected]> > Hello Bart, > > Regarding the manual migration, I've done some in the past and you can: > - shutdown VM > - create an image template with the source pointing to your raw image (it > will create a symlink) > - create a template with your specs and image template > - instantiate new VM with created template > > or if you have already test VM created and running with proper specs: > - shutdown VM > - just go to datastore/0/imageid, delete disk.0 (if its a test disk) and > make a symlink with the path to your image named disk.0 > Now it's just a matter of your existing VMs homogeneity/heterogeneity, if > they are all alike just go to the 2nd option, or combine the both. > > -- > André Monteiro > > > > > On Thu, Aug 23, 2012 at 10:33 AM, Bart <[email protected]> wrote: > >> Hi, >> >> I'm new to OpenNebula and have read some of the documentation and even >> got the book (b.t.w. a great book!), as such I'm in the process of setting >> up an initial setup to see how all the pieces fit together. >> >> For the initial setup I have 4 servers, all identical, and the setup that >> I'm going for is a growth model as shown below: >> >> - The first server will be the OpenNebula management server. >> - The second and third server will both function as a distributed >> filesystem using MooseFS, the idea is to get a redundant server setup for >> storage + have the ability to easily grow the storage side. >> - The fourth server will become a KVM node in it's own cluser. In >> addition to this one node we currently have three other stand-alone KVM >> servers which will eventually be integrated into this setup (so in the end >> I'll have four KVM nodes, all in one cluster). >> >> I'm pretty confident that this setup will work, but if you have some >> ideas on an even better setup then I'm all up for the info :) >> >> As mentioned, we currently have three running stand-alone KVM nodes. They >> are currently running about 20 VM's in total and I'll have to migrate these >> VM's towards the OpenNebula setup since OpenNebula doesn't detect the >> currently running VM's. >> I've read somewhere on these lists that you'd have to import the current >> disk image (they are all in raw file format) and try to duplicate the >> template from where you'll be able to startup a VM with that image. . . (it >> was a short answer...) >> >> My question is, are there example tutorials on how to do these >> migrations? Or tricks/scripts that can help with the migration? >> >> Currently this is the biggest question that I have, if I can do a >> migration in a proper way (I don't mind if I have to do it manually, as >> long as it works) then I can start to make plans for a production >> environment along with a migration plan where I'll move VM's from one >> server to OpenNebula and then reinstall the stand-alone KVM node to become >> part of the OpenNebula cluster. >> >> Any input would be great, so thanks in advance. >> >> -- >> Bart >> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >> >> > Hi André,
Thanks for the answer, I'll give the first sequence a go and see how far I can get with it. -- Bart
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