[Disksim-users] block placement

[Greg Ganger]

You'll need to dig into the code, obviously, but that ought to be
possible.

Greg


On Fri, 26 Feb 2010, nihat altiparmak wrote:

> Hi all,
>
> We are working on the effects of different placement strategies to the
> performance of our system. In our system, we need to place different blocks
> to different disks and make some simulations. Can we do this by using
> DiskSim? As far as I understood, this is controlled in DiskSim by the trace
> file assuming that the disks have all the blocks that they can store and if
> we tell to disksim that;
> "read block # X from disk A", it assumes that, that block X is stored in
> disk A. But if we have a one disk array logical organization lets say with 3
> disks and we want specific blocks to be stored in specific disks such that;
>
> blocks 1, 5 ,7 are stored in disk 0
> blocks 11, 23 are stored in disk 1
> block 18 is stored in disk 2
> ..
> ..
>
> all the other blocks are randomly placed, then can we do this by adding our
> own function similar to the function "logorg_mapstriped (logorg *currlogorg,
> ioreq_event *curr)" into disksim_logorg.c file?
>
> Thanks in advance,
>
> -- 
> Nihat Altiparmak
> University of Texas at San Antonio
> Computer Science
> Graduate Research Assistant
>