>>>>> "Mike" == Mike Snitzer <snitzer@xxxxxxxxxx> writes: Mike> Thin provisioned LUNs from multiple array vendors have failed Mike> WRITE SAME(16) w/ UNMAP bit set with ILLEGAL_REQUEST sense. Can you share what these arrays are returning in block limits and the logical block provisioning VPD? It sounds like they are returning inconsistent data causing us to issue the wrong command... -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html