[Lustre-discuss] OST crash recovery problem

[Heiko Schroeter]

Since the new setup everything is running fine. Why ?

Except my backbone, which keeps on etching when something is not quite figured 
out  ;-)

When this sort of breakdown happens again i do have a blank undersigned 'Blitz 
Holliday' form ready in my desk ....

Seriously, i also would like to know what the cause (besides the power loss)  
is and how to repair a lustre system in such a case.

Heiko


> Darn, We are curious what happened now.
>
> On Mon, Aug 25, 2008 at 9:35 AM, Heiko Schroeter
>
> <schroete at iup.physik.uni-bremen.de> wrote:
> > Am Montag, 25. August 2008 13:54:46 schrieb Johann Lombardi:
> >
> > Sorry, the system had to be setup from scratch as we couldn't find a
> > solution. This has already happen.
> >
> > The mounts were done manually.
> > Unfortunatly i did not memorize exactly the output of 'lctl dl'.
> >
> > Thanks anyway for your effort.
> >
> > Regards
> > Heiko
> >
> >> On Thu, Aug 14, 2008 at 08:40:05AM +0200, Heiko Schroeter wrote:
> >> > What needs to be done in such a case ?
> >> > I tried to move the mountpoint because of the "file exists" message
> >> > but that does not help.
> >> >
> >> > Aug 13 11:18:54 sadosrd20 LustreError:
> >> > 7247:0:(genops.c:246:class_newdev()) Device scia-OST0004 already
> >> > exists, won't add
> >> > Aug 13 11:18:54 sadosrd20 LustreError: 7247:0:
> >> > (obd_config.c:180:class_attach()) Cannot create device scia-OST0004 of
> >> > type obdfilter : -17
> >>
> >> It seems that OST0004 is already up. Is this OST automatically mounted
> >> at boot time (via fstab)? Could you please run 'lctl dl'?
> >>
> >> Johann
> >
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