[Dunder-users] Re: tornado/dunder: service stop on Tue May 27
0800 CEST
Per Lundqvist
perl at nsc.liu.se
Tue May 27 17:34:24 CEST 2008
These are now available from Dunder:
/nobackup/rossby4
/nobackup/rossby5
/nobackup/rossby6
/nobackup/rossby7
/nobackup/rossby8
/nobackup/smhid1
/nobackup/smhid3
/Per
On Tue, 27 May 2008, Per Lundqvist wrote:
> The following filesystems are now available again from Dunder and Tornado:
>
> /nobackup/rossby1
> /nobackup/rossby2
> /nobackup/rossby3
>
> /Per
>
>
> On Tue, 27 May 2008, Per Lundqvist wrote:
>
> > The stop is not over yet, but the login node on Dunder is now available.
> >
> > Note that no /nobackup-filesystem is available at the moment. The
> > remaining filesystems will be available as soon as we are finished with
> > the maintenance of them.
> >
> > /Per
> >
> >
> > On Mon, 19 May 2008, Per Lundqvist wrote:
> >
> > > On Tue May 27 0800 CEST, _all_ distributed filesystems on Dunder and
> > > Tornado (i.e. /home and /nobackup/*) will be taken offline for maintenance
> > > of the corresponding disk servers.
> > >
> > > Since this also affects /home on both systems, everybody will have to be
> > > logged out while the corresponding disk server is being checked - we will
> > > prioritize /home though, so that you may log in as soon as possible.
> > >
> > > The batch queuing system will be stopped during this - i.e. we will put a
> > > blocking reservation that prevents jobs to run at the time.
> > >
> > > The amount of time for this is uncertain, an initial estimate is that we
> > > are done ~ 2000 on the same day.
> > >
> > > Schedule Tue 27/5:
> > > 0800 - stop begins, everybody will be logged out from dunder and
> > > tornado. The batch queuing system will be stopped.
> > > ... - all distributed filesystems will be unmounted from all nodes
> > > on Dunder and Tornado
> > > ... - maintenance begins on all disk servers
> > > ... - filesystems will be mounted again as soon as possible (/home
> > > prioritized)
> > > ... - when /home is available you will be notified and be able to
> > > log in again
> > > ... - when the rest of the filesystems on each respective
> > > filesystem are available you will be notified and the batch
> > > queuing system will start again.
> > >
> > > /Per
> > >
> > >
> >
> >
>
>
--
Per Lundqvist
National Supercomputer Centre
Linköping University, Sweden
http://www.nsc.liu.se
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