On Tue, Feb 26, 2013 at 01:49:42PM +0800, Timon Wang wrote: > Is there any solution in KVM that works like VAAI does in EXSI, I > found a PPT that posted in Sep. 2012, which said that storage offload > will be consider in future. > I am wondering anybody knows about this, or provide some information about this? Thin Provisioning support is being added to QEMU. Some configurations already work - virtio-scsi on a block device or raw file supports discard, for example. Linux recently got Zero Blocks support in the form of the BLKZEROOUT ioctl. It is not being exploited by QEMU or libvirt yet. Copy Offload, not aware of active development. Perhaps libvirt or libstoragemgmt will support it. Stefan -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html