On Sat, Jan 03, 2015 at 12:47:10AM +0000, Richard W.M. Jones wrote: > On Fri, Jan 02, 2015 at 10:19:29AM +0000, Stefan Hajnoczi wrote: > > On Sat, Dec 27, 2014 at 09:28:53AM +0800, Haoyu Zhang wrote: > > > I want to P2V a redhat server to kvm vm, and lvm was used to manage disks > > > in the redhat server. > > > I want to only migrate the really used storage to vm image, which can > > > reduce the time cost significantly sometimes, > > > so I need the information of logical volume to physical disks bitmap, to > > > know which physical sectors were really used, > > > any ideas? > > > Is there a tool off-the-shelf have implemented the target? > > > > Have you looked at virt-p2v(1)? > > > > http://libguestfs.org/virt-p2v.1.html > > > > I'm not sure if it sparsifies the disk image during conversion or > > whether you would have to run virt-sparsify(1) afterwards > > (http://libguestfs.org/virt-sparsify.1.html). virt-sparsify(1) can > > definitely unmap LVM's unused space. > > It sparsifies automatically during conversion. No need to run > virt-sparsify afterwards :-)
I should note this statement only applies to the new version of virt-p2v/virt-v2v, >= 1.28. The old version, 0.9.x, did not do this. The old version is not supported or maintained. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/ -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
