WLCG Management Board #344

Tuesday 20 Oct 2026, 16:00 → 18:00 Europe/Zurich

513/R-068 (CERN)

16:00 CERN/10:00 EDT/09:00 CDT

URL for the ZOOM call: https://cern.zoom.us/j/66011416092  (the passcode has been distributed by email)

To join by phone (see the dedicated support page):
1) dial your local ZOOM number (e.g. +41432107108) then enter the MB meeting ID  660 1141 6092 then #
2) mute your phone (there is no auto-mute facility)
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Email Distribution List: worldwide-lcg-management-board@cern.ch
Email List Archive: worldwide-lcg-management-board (requires CERN authentication)
Minutes: Management Board Meeting Minutes
Action List: MbActionList
See also the: WLCG Document Repository,  WLCG Web Site

16:00 → 16:05 Minutes and Matters Arising

• The registration for the WLCG/HSF Workshop (Bologna, Nov 2cd-6th) is going very well, with ~ 170 registrations. The registration form is now closed; if there is the need to add someone more please write to wlcg-hsf-workshop-2026@lists.cnaf.infn.it (as it is happening multiple times per day already).

• Next week there will be the RRB. Pledging process was carried out without hiccups, and pledges resources for 2027 meet the experiment's needs better than for 2026. Still, there are some problematic situations, like

• CMS T1 tape -8% (it was -7% in 2026)

• ALICE T1 disk -9% (it was -14% in 2026)

• CMS T2 disk -14% (it was -11% in 2026)

• LHCb T2 disk -8% (it was -16% in 2026)

• The WLCG RRB document has been compiled and uploaded to the RRB agenda: here

• At the RRB, on top of the standard talk, a talk on the preliminary results from the Resource Planning and Pledging task force was requested. A similar talk will be given at the WLCG CB the following week, in Bologna.

• The DarkSide Experiment is expected to [Note: we received the email yesterday] formally apply for WLCG Associated Membership in the next days, with a letter from the management. We already discussed the technical part in the MB, let’s see the position of the CB during the meeting at the November workshop.

• On the agenda today also the touchbase on DC27. It will be discussed at length at the WS, but since there were a few requests for info, we have today a talk.

• Finally, Julia Andreeva is going to retire in the first half of 2027. We had a long list of chats with experiments, other operation responsibles, etc, and the outcome was unanimous: Panos to enter Operations Coordination. The proposed configuration is for Maarten and Panos to serve as co-coordinators, a solution they agreed on. Hence, according to the rules in place at the moment, we ask the MB to appoint him for the next 4 years, at the same time acknowledging the new configuration. 

16:05 → 16:10 Action List Review

16:10 → 16:20 WLCG Service Report

Speakers: Panos Paparrigopoulos (CERN), Maarten Litmaath (CERN)

WLCG-svc-report-261020-v10.pdf

WLCG-svc-report-261020-v10.pptx

16:20 → 16:30 TCB Report

Speakers: Alessandro Di Girolamo (CERN), James Letts (Univ. of California San Diego (US))

Technical Coordination Board: The eighth meeting of the TCB took place last Tuesday, October 13th at CERN and on Zoom [Indico] where we discussed the first draft of the WLCG Technical Roadmap document with the chapter facilitators and TCB members, including experiment computing coordinators. We compiled a list of short-term action items to put together a second draft which we intend to circulate to the WLCG MB in the next week or so in anticipation of the WLCG/HSF Workshop. One main change from previous outlines is the creation of a dedicated “AI in WLCG” chapter, which will likely be a focus of the reviewers.

Open Technical Forum: OTF#14 takes place today at the HEPiX Fall Workshop with a focus on WLCG site evolution and operational effort at sites (Chapter 2 of the Technical Roadmap). If needed, we will call an OTF in December to discuss the Technical Roadmap draft, in particular if there are significant changes after the WLCG/HSF Workshop.

16:30 → 16:50 Draft plans for DC27

Speakers: Johannes Elmsheuser (Brookhaven National Laboratory (US)), Katy Ellis (Science and Technology Facilities Council STFC (GB))

Clone of the current model

WLCG_MB_DC27_planning-2.pdf

16:50 → 16:55 AOB