Hi, i'm doing some testing with WRITE_SAME / UNMAP but i do not have any real hardware that supports these commands. I have configured a LIO target with a file backend. However when i try to use these commands with sg_unmap and sg_write_same, i get the following kernel messages: [ 2279.544606] UNMAP emulation not supported for: fileio [ 2299.480649] WRITE_SAME w/o UNMAP bit not supported for Block Discard Emulation [ 2303.320805] WRITE_SAME emulation not supported for: fileio Is there any way i can have it emulate UNMAP and WRITE_SAME? I don't require e.g. UNMAP to really unmap a block should the file backing store be on an SSD. Basically i'm just looking for a way to test these commands from an initiator point of view. Regards, Geert -- 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
