[Neolith-users] Neolith, Kappa and Matter downtime 2011-11-22 00:00-23:59 CET

[Mats Kronberg]

Reminder: please don't forget that Neolith, Kappa and Matter will be
unavailable next Tuesday!

Also note that since it is now less than seven days until the service stop,
7-day jobs on Kappa and Matter will no longer start normally. On Neolith
this will start happening on Saturday (3-day jobs).

Until the service stop, only jobs shorter than the remaining time until the
stop (2011-11-22 00:00 CET) can be started.

A graphical view of this:
http://www.nsc.liu.se/cgi-bin/neolithstatus
http://www.nsc.liu.se/cgi-bin/matterstatus
http://www.nsc.liu.se/cgi-bin/kappastatus

-- 
Mats Kronberg, NSC Support <support at nsc.liu.se>



On Thu, Nov 3, 2011 at 14:34, Mats Kronberg <kronberg at nsc.liu.se> wrote:

> Dear Neolith, Kappa and Matter users,
>
> On Tuesday November 22nd (2011-11-22) the NSC systems Neolith, Kappa
> and Matter (including the login nodes) will not be available.
>
> The main reason for this downtime is to expand the available space on
> the /nobackup/global file system, and to do some changes (for better
> performance) to the nobackup file system that require the whole system
> to be shut down.
>
> We will also use this downtime to perform various upgrades and changes
> to our clusters that cannot be performed during normal operations.
>
> The downtime for Neolith, Kappa and Matter will start at 00:00 CET
> (midnight between Monday and Tuesday). We have scheduled the whole day
> for this, but will of course try to keep the actual downtime as short
> as possible.
>
> Queued jobs that have such a long walltime that they cannot finish
> before the downtime will not be started. E.g 7 day jobs cannot start
> if there are less than 7 days remaining before the stop.
>
> If you need to run jobs in the week before the downtime, you might
> need to shorten your jobs.
>
> Jobs that are in the queue before the downtime will remain in the
> queue, and will be started normally after the downtime.
>
> Hint to low-priority projects: short jobs will find it easier than
> usual to run in the days immediately before downtime, as they don't
> have to compete with longer jobs.
>
> Kind regards,
>
> --
> Mats Kronberg, NSC Support <support at nsc.liu.se>
>
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