When I said "which is slower", I meant that it makes that running Instance slower later... With preallocatoin=metadata, the running instances will be a bit faster without losing storage space with lots of zeros...
My /var/lib/nova/insntances subdir in a XFS File System on top of a hardware RAID... On 11 July 2014 20:54, Martinx - ジェームズ <thiagocmarti...@gmail.com> wrote: > Guys, > > How can I configure the Compute Node, to create its qcow2 images, using > preallocation? > > Currently, OpenStack Nova Compute creates the instance image, using > "qemu-img create" without passing the option "-o preallocation=metadata" to > it, which is slower. > > So, how can I reconfigure nova compute to make use of preallocation?! > > Libvirt supports it, commits: > > > http://libvirt.org/git/?p=libvirt.git;a=commit;h=1c9a2fb1aef1729ac86cd6648b5c2b7584f5f698 > > > http://libvirt.org/git/?p=libvirt.git;a=commit;h=790dfee5eaf8600282da5a3d61bf807516f1b87e > > Tks! > Thiago >
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