[Lustre-discuss] Get OSS from client

[Wojciech Turek]

Hi,

As far as I know from my experience in using lustre if OST is down
client will certainly notice that not only by hanging but also by
showing relevant information in the syslog. What you want to do is to
look for LustreError messages in your syslog and some of them will tell
you which OST is down. In that information you can also find out which
OST was serving problematic OST. In lustre operation manual you can find
chapter which helps to understand what some of the log messages means.

Regards,

Wojciech

Dnia 2008-07-12, sob o godzinie 08:27 -0400, Mag Gam pisze:
> Well,
> 
> If it a client is hanging because a OST/OSS is down, I would like to
> know which OST is down thats all.
> 
> I don't want clients to complain...
> 
> TIA
> 
> 
> On Thu, Jul 10, 2008 at 10:57 AM, D. Marc Stearman <marc at llnl.gov> wrote:
> > On Jul 9, 2008, at 6:47 PM, Mag Gam wrote:
> >>
> >> Is it possible to get OSS from a client mount point?  Or even a MDS?
> >>
> >>
> >> TIA
> >
> > I am not quite sure what you mean.  Do you want a list of all the OST/MDT
> > devices?
> >
> > You can do 'lctl dl' to list the devices, or use 'lfs df' to get usage
> > information per device.
> >
> > -Marc
> >
> > ----
> > D. Marc Stearman
> > LC Lustre Administration Lead
> > marc at llnl.gov
> > 925.423.9670
> > Pager: 1.888.203.0641
> >
> >
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