I am referring to only one 1GB file and want the data distributed randomly across the 1TB target disk. 1 TB disk can be raw without a file system. What is the algorithm for distributing this 1GB over the 1TB space? Thanks -ajoy On 5/2/14 7:41 AM, "Jens Axboe" <axboe@xxxxxxxxx> wrote: >On 05/02/2014 08:36 AM, Ajoy Aswadhati wrote: >> Hi Jens, >> With the new io_limit option, is it possible to do the following: >> Have the disk size be 1TB and use 1GB file size and make it use the 1TB >> space randomly and not confine to the first 1GB. >> I.e. Use the entire disk in a sparse and random order repeatedly for n >> iterations. If yes can you provide a config. > >On the raw disk, you can do that with > >size=1tb >io_limiut=1gb > >and add loops=x for however many iterations you want. > >If you mean from a file system, then you would need a 1TB file to >achieve (roughly) the same thing. Not sure what you mean here, but are >you referring to multiple 1GB files? > >-- >Jens Axboe > -- 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
