direct IO on fedora 11

[guy keren]

when i said "deprecated" i didn't mean "does not exist any more". i 
meant "you should start looking for replacements...". i don't know if 
'raw' was removed from fedora 11 or not.

regarding iometer - the "stable" version from 2006 seems to support 
O_DIRECT when accessing disks (as well as making the buffer's address 
properly aligned) - so you should be ok using it. the 2008 rc2 version 
doesn't seem to use O_DIRECT - no idea why. you might want to ask this 
on the project's mailing list.

--guy

Dan Bar Dov wrote:
> Damn, so how do I tell iometer to use direct io device?
> 
> Looks like I'm screwd.
> Dan
> 
> On Sun, Dec 13, 2009 at 7:00 PM, guy keren <choo at actcom.co.il 
> <mailto:choo at actcom.co.il>> wrote:
> 
>     Dan Bar Dov wrote:
> 
>         Anybody know where is the raw(1) command in fedora11?
>         I want to do some direct IO tests, and cannot find raw(1).
>         Maybe I'm missing an rpm, but which? yum fails to locate it.
> 
>         Ideas?
>         Dan
> 
> 
>         ------------------------------------------------------------------------
> 
> 
>         _______________________________________________
>         Linux-il mailing list
>         Linux-il at cs.huji.ac.il <mailto:Linux-il at cs.huji.ac.il>
>         http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
> 
> 
>     'raw' is deprecated. applications should open files/block-devices
>     using O_DIRECT - and they will achieve the same effect (and will
>     have to use properly sized and aligned I/O buffers).
> 
>     --guy
> 
>