Hi Nick, http://linux-iscsi.org/wiki/VStorage_APIs_for_Array_Integration This page says LIO EE supports UNMAP, WRITE_SAME, COMPARE_AND_WRITE, and EXTENDED_COPY, which comprise native vSphere 5 VAAI support. I see the first two in the kernel, but not the last two. I'm assuming these required kernel code to implement. Should the community be looking to also implement these, or would that be a redundant effort? Thanks -- Regards -- Andy -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html