Import large existing VM images

Community Support
1

If I have a bunch of KVM images in QCOW2 format that i want to bring into OpenNebula how might i got about doing that?
I have setup a datastore to point to the NFS share where everything currently lives, this NFS share is mounted on each of my KVM hosts(called /nfs)

I’d like to just associate the exiting images with OpenNebula then create some VM’s based on them. They will all be persistent images as most of them are Windows Server’s

When I add a new image using Sunstone OpenNebula seems to insist on copying the image(VERY slowly) from the existing location (/nfs/VMs/VMDisk1.qcow2) to it’s own directory at /nfs/107/0ad4b4a5a7ee73295a7ceb1e205f1536

Can I tell OpenNebula NOT to copy these images(Which total >2TB in total) and just use them in place?

2

Hi,

You can tell OpenNebula to use the existing images with the SOURCE attribute. This is not supported from the sunstone wizard, you need to use a template file or the –source option from the CLI.

When using SOURCE, you also need to provide the SIZE manually. OpenNebula will not try to detect the file size.

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