Hi all: When deleting a volume using LVM driver, it will 'dd /dev/zero ' to whole volume in default. But it takes a long time when the volume size is big , and the cost is expensive. I want use the configuration.volume_clear_size to delete volume safely, How to configure a appropriate value of this option? May be 15M or 10M? THX -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140107/c5c00dd7/attachment.html>