Maintenance Schedule: Difference between revisions

Latest revision as of 08:44, 1 September 2026

Anunna maintenance

Maintenance windows allow us to safely perform essential updates and upgrades that cannot be carried out while the cluster is in use. By grouping this work into planned downtimes, we keep Anunna secure, reliable and up to date while minimising unexpected disruption.

Anunna is taken down for planned maintenance — firmware and software updates — roughly twice a year. Typically one downtime is scheduled in April or May and another in October in a week free of teaching, to disrupt usage as little as possible.

During a downtime the cluster is unavailable. Jobs are not scheduled to run across a planned downtime, so check the announced dates when planning long jobs.

Maintenance schedule

Scheduled downtime	Date	Planned work	Unavailable services
Autumn 2026	12–16 October 2026	OS patching Lustre upgrade to version 2.17	HPC compute Login nodes Web applications Lustre storage
Spring 2027
Autumn 2027

Announcements

Planned maintenance is announced in advance — watch the Message of the Day on the Apps Portal, login nodes and we always send out an announcement in advance over e-mail.

Reporting problems

If something is not working — during or outside maintenance — see How to Get Help.

@@ Line 1: / Line 1: @@
-== Maintenance and Management ==
+== Anunna maintenance ==
+Maintenance windows allow us to safely perform essential updates and upgrades that cannot be carried out while the cluster is in use. By grouping this work into planned downtimes, we keep Anunna secure, reliable and up to date while minimising unexpected disruption.
-From December 2013 untill 1 March 2014 the most important phonenumbers are:
+Anunna is taken down for planned maintenance — firmware and software updates — roughly twice a year. Typically one downtime is scheduled in April or May and another in October in a week free of teaching, to disrupt usage as little as possible.
-* André ten Bohmer: +31 317 485893
+During a downtime the cluster is unavailable. Jobs are not scheduled to run across a planned downtime, so check the announced dates when planning long jobs.
-* Koen Pollmann:    +31 317 485912
+== Maintenance schedule ==
+{| class="wikitable"
+! Scheduled downtime
+! Date
+! Planned work
+! Unavailable services
+|-
+| Autumn 2026
+| 12–16 October 2026
+| OS patching<br>Lustre upgrade to version 2.17
+| HPC compute<br>Login nodes<br>Web applications<br>Lustre storage
+|-
+| Spring 2027
+|
+|
+|
+|-
+| Autumn 2027
+|
+|
+|
+|}
+== Announcements ==
-When we go to work seriously with the HPC for AgroGenomics, from the 1th of March 2014, questions should be directed to the Service Desk IT.
+Planned maintenance is announced in advance — watch the Message of the Day on the [[Portal Overview|Apps Portal]], login nodes and we always send out an announcement in advance over e-mail.
+== Reporting problems ==
-This can be done via the mail: servicedesk.it@wur.nl
+If something is not working — during or outside maintenance — see [[How to Get Help]].
-And it can be done via the telephone: +31 317 488888
+== See also ==
+* [[How to Get Help]]
+* [[Cluster Architecture Overview]]