[Lustre-discuss] Making a init script

[Satoshi Isono]

Andreas,

Thanks for useful information.
Is what is necessary to execute this command on a client only at 
once? And this is performed by all clients, right?

Also, I want to get more information about this function atatahead. 
 From what can I get information?

I realize this problem is bug (Bugzilla: #15406 #15169 #15175). 
Better solution is to upgrade Lustre 1.6.5.1, how do you think so?

Regards,
Satoshi

At 08/07/12（土）06:19, Andreas Dilger wrote:
>On Jul 11, 2008  11:27 +0900, Satoshi Isono wrote:
> > I am using lustre-1.6.4.3 on RHEL 5.1 with kernel 2.6.18. And then, I
> > found Lustre bug statahead function on this Lustre version. I try to
> > write the following entry into the Lustre init script in order to set
> > this value permently. In which file should I write?
> >
> > echo 0 > /proc/fs/lustre/llite/*/statahead_max
> >
> > I have already tested. In case of editting /etc/rc.d/ec.local, it did
> > not work. I assume I have to do this operation before mounting
> > Lustre, after loading Lustre modules.
>
>The rc.local script is likely run BEFORE Lustre is mounted.  The above
>parameter needs to be set AFTER Lustre is mounted.  You can add a
>permanent configuration parameter with:
>
>         lctl conf_param lustre.llite.statahead_max=0
>
>Note that this is permanent and you will need to reset this parameter
>later with a new setting to re-enable the statahead:
>
>         lctl conf_param lustre.llite.statahead_max=32
>
>Cheers, Andreas
>--
>Andreas Dilger
>Sr. Staff Engineer, Lustre Group
>Sun Microsystems of Canada, Inc.