Hi, nova.virt.libvirt.storage.lvm.clear_volume() has a comment that we could use shred to zero out volumes efficiently if we could assume that shred 8.22 was in all our downstream distros [1]. shred 8.22 shipped in 2013 [2].
Can we assume that thing now? xenial appears to ship with 8.25 for example. If so, we could drop a reasonably complicated caller of dd, and it would make moving to privsep a tiny bit easier. Thanks, Michael 1: https://git.openstack.org/cgit/openstack/nova/tree/nova/virt/libvirt/storage/lvm.py#n219 2: http://savannah.gnu.org/forum/forum.php?forum_id=7815
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