From TROPPENS at de.ibm.com Wed Apr 2 13:51:46 2025 From: TROPPENS at de.ibm.com (Ulf Troppens) Date: Wed, 2 Apr 2025 12:51:46 +0000 Subject: [gpfsug-discuss] UK Storage Scale User Group Meeting - Save the Date Message-ID: The Storage Scale User Group will meet at IBM?s Office on York Road in London on Tuesday 13th and Wednesday 14th May and there is no cost to attend. Early registration for the User Group Meeting is recommended to secure your place. Register immediately at: https://www.spectrumscaleug.org/event/uk-user-meeting-2025-may-1314-2025/ Once again, for the 2025 meeting, there will be a social event on the evening of Tuesday 13th after the conclusion of Day 1 presentations, thanks to the generosity of our sponsors. NB. A full agenda is being developed and will be released shortly. Ulf Troppens Product Manager - IBM Storage for Data and AI, Data-Intensive Workflows IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Wolfgang Wendt / Gesch?ftsf?hrung: David Faller Sitz der Gesellschaft: B?blingen / Registergericht: Amtsgericht Stuttgart, HRB 243294 -------------- next part -------------- An HTML attachment was scrubbed... URL: From TROPPENS at de.ibm.com Thu Apr 3 08:12:57 2025 From: TROPPENS at de.ibm.com (Ulf Troppens) Date: Thu, 3 Apr 2025 07:12:57 +0000 Subject: [gpfsug-discuss] UK Storage Scale New User Day - Save the Date Message-ID: IBM has arranged a New User Day for Monday 12th May 2025 at the IBM Client Centre in London. This is an ideal opportunity for those who are new to the solution and for those who still feel they are novices, to come together and learn best practice and the fundamentals of Storage Scale. This informal nature of the day allows attendees to ask questions of established professionals and to hear a few tips and tricks. It is also an ideal opportunity to hear about the Storage Scale User Group and the work it does supporting users, collating feedback for future development and helping users to maximise the capabilities of the solution. There is no charge for the New User Day, but early registration is recommended to secure your place. Register immediately at: https://www.spectrumscaleug.org/event/uk-new-user-day-2025-may-12-2025/ NB. A full agenda for the New User Day will be released shortly. Ulf Troppens Product Manager - IBM Storage for Data and AI, Data-Intensive Workflows IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Wolfgang Wendt / Gesch?ftsf?hrung: David Faller Sitz der Gesellschaft: B?blingen / Registergericht: Amtsgericht Stuttgart, HRB 243294 -------------- next part -------------- An HTML attachment was scrubbed... URL: From leonardo.sala at psi.ch Tue Apr 15 07:41:23 2025 From: leonardo.sala at psi.ch (Leonardo Sala) Date: Tue, 15 Apr 2025 08:41:23 +0200 Subject: [gpfsug-discuss] Moving CES IPs between two CES clusters and KRB NFSv4 Message-ID: <9eb88d87-938f-4b6c-a6e9-c6f138ea27bd@psi.ch> Dear all, we do maintain two CES clusters (CESA and CESB), and used to migrate virtual IPs from one to the other when doing maintenance. This worked great, but: now we have introduced kerberized NFSv4. In order to have this same functionality, we thought of moving the SPNs corresponding to the vIPs from one AD object to another, so for example # Before the move: CESA has nfs/ces-1.domain.com nfs/ces-2.domain.com CESB has nfs/ces-3.domain.com # After the move CESA has nfs/ces-1.domain.com CESB has nfs/ces-3.domain.com nfs/ces-2.domain.com This kinda works out, but we do have troubles with the client credential caches, in the sense that the NFS mount works again after we do: kdestroy -c /var/lib/gssproxy/clients/krb5cc_0 && KRB5CCNAME=KCM: kdestroy -A Does anybody have a similar setup / usecase, or how do you manage e.g. upgrades without downtime or multiple CES clusters? Thanks for any insight! cheers leo -- Paul Scherrer Institut Dr. Leonardo Sala Group Leader Data Analysis and Research Infrastructure Group Leader Data Curation a.i. Deputy Department Head Science IT Infrastructure and Services department Science IT Infrastructure and Services department (AWI) OBBA/230 Forschungstrasse 111 5232 Villigen PSI Switzerland Phone: +41 56 310 3369 leonardo.sala at psi.ch www.psi.ch -------------- next part -------------- An HTML attachment was scrubbed... URL: