[developers] Fwd: Maintenance July 4-5 affecting app node(s)

Stephan Oepen oe at ifi.uio.no
Sun Jul 1 22:12:21 CEST 2018


due to a scheduled maintenance stop of the oslo supercluster, most of
the DELPH-IN and NLPL infrastructure (including web services, wikis,
SVN, mailing lists) will be off-line for at least several hours this
coming wednesday, july 4, 2018.  we hope to bring most services back
up again already on the same day, but in the worst possible scenario
the downtime may run throughout most of the following day, thursday,
july 5 (all times are relative to oslo, norway).

i apologize for any inconvenience!  oe

---------- Forwarded message ----------
From: Thomas Röblitz <thomas.roblitz at usit.uio.no>
Date: Mon, Jun 25, 2018 at 1:15 PM
Subject: Maintenance July 4-5 affecting app node(s)
To: Stephan Oepen <oe at ifi.uio.no>
Cc: Marcin Krotkiewski <marcin.krotkiewski at usit.uio.no>

Hei Stephan,

on July 4-5 there will be a maintenance stop of many machines because
of work on the electrical systems and software upgrades. Because of
the nature of the work, we need to physically turn off most of the

We’ll use the opportunity to upgrade some components of Abel,
specifically its parallel file system. Past experiences have shown,
that we may need to reboot machines to unmount BeeGFS clients on them.

Therefore we ask you to stop any work on the app nodes (calculations,
running programs or services) and having logged out by Wednesday, July
4th, 08:30.

This concerns app nodes sh, ls, and at (cc-ed Marcin for at).

Kind regards


Research Infrastructure Services, USIT
University of Oslo, Norway

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