Firstly, thanks before in hand. :) Using FIO, what is the way to achieve a work load with specific number of unique blocks duplicates for specific number of times. For Example, i want a 252k block duplicates 1000 times and i want it to be the unique block in the complete workload. Another query is that, for a blocksize of 256k does the io buffers are created at 256k and written to the disk and are all those 256k blocks unique buffer?. Can there be a change that in a 256k block, the smaller size buffers be the same? -- Srinivasa R Chamarthy -- 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