[Pvfs2-users] How to make a process write to separate local disc

[Murali Vilayannur]

Hi Luiz,
Looks like your email slipped through the cracks. Sorry if noone
responded to your email.
There is currently no way to guarantee that each process writes to a
specific disk location with the distributed version of pvfs2.
You can make sure it always writes to *some* disk with appropriate
stripe size, overall # of strips and a simple stripe distribution. To
make sure that it is a specific disk to which it is writing,
you should give Julian's code a try from CVS, that has some hints
functionality to do something similar to what you want.. Check this
thread for more info.
http://www.mail-archive.com/pvfs2-users@beowulf-underground.org/msg00677.html
thanks!
Murali

On 2/6/07, Luiz Mendes <luizmendesw at gmail.com> wrote:
> Hi all,
>
> I would like to know if the hint start_iodevice works, because i want to
> make a benchmark where each process in different PCs writes in own local
> PVFS disc.
>
> i have been trying this using hints striping_unit, start_iodevice and
> striping factor hints.
>
> But is there another way to guarantee that a process writes to only one
> disc?
>
> Thanks
> Luiz Mendes
>
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