Greetings all. I have a issues using the libaio engine on Ubuntu-13.10. FIO version 2.1.8 is installed and runs fine if I leave the -ioengine option out of my configuration (it defaults to ioengine sync). When I try and use -ioengine=libaio I receive the errors fio: engine libaio not loadable fio: failed to lead engine libaio I have use these identical workloads on Suse 11, RH6, and Cent OS systems with no issue. And even after specifically installing libaio on Ubuntu I still see these issues. apt-get install libaio1 Any ideas? I'm suspecting this is user error but I can't see where I went wrong. Thanks Stephen "Nick" Nichols Western Digital Enterprise Storage Group -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html