[14.07.25]
Present: David Britton – chair, Peter Clarke, David Colling, Davide Costanzo, Alastair Dewhurst, Tony Doyle, Katy Ellis, Alessandra Forti, Peter Gronbech, Roger Jones, David Kelsey, Steve Lloyd, Andrew McNab, Andrew Sansum, Sam Skipsey , Jill Sambrook (Minutes)
Apologies: Daniela Bauer, Jonathan Hays
0)GridPP54 update [SS] and Agenda Structure [DB]
-Registration is now open. 35 registered so far.
-SS to circulate a link to the registration to the PMB group.
-George Madden will likely attend the Wednesday/Thursday sessions.
– AD got 1 response from potential sponsors from CDW. SS drafting a contract letter and will circulate to the group for input.
Agenda structure:
-discussions took place around structure.
-The group need to decide what they want to communicate with George at the meeting. Perhaps focus most important discussions with George for the Wednesday in case of any change in plans.
– DB to look at the data SS is currently collecting (site survey forms) in the next week or 2. DB needs this to plan for tier 2 infrastructure for the next 2 years.
– could also look at other funding opportunities which is mentioned below.
-looking at site security, perhaps a discussion for the Friday.
– Normally there is also an experiment talk somewhere. (GridPP support for IRIS – PC said this could be a topic.). Could include a lot of VO that use it directly or indirectly, including SHIP.
DB going to keep thinking about this and get back to SS soon.
1) Funding bid status:
– SSI Software Maintenance Fund [AD]
-AD forwarded email to PMB. Got through expression of interest and asked to put together a full bid. -AD has now received full details about what to submit.
-There were over 400 applications, and we are seeking feedback on our initial expression of interest before the full bid deadline in September.
IAM, APEL, XrootD were the 3 things highlighted.
– EGI Infra-TECH-01 [AD/DB]
Horizon bid.
4fte’s for 2-3 years. To replace APEL.
DC running MRes “Machine Learning and the Physical Sciences”– AD applying for this. AD will speak to DC about this.
2) Computing and ESPP25 [DB]
AOCB: Pheno [SS]
STANDING ITEMS
SI-0 Tier-1 Manager’s weekly report & Technical Meetings [AD]
1. TS1170 – notes on the facilities side, 4 out of 5 of these tapes have shown failures. Current theory there is a problem with a Tape drive. Still under investigation.
Paused repacking of tier 1 tape. We have done a check on 20 tapes that have been repacked. So far showing no errors here.
2.Transfer failures – between Glasgow and RAL. XrootD issue, appears to be related to certain options (SciTags) making slightly unreliable network connections much less reliable for transfers, so this can affect other links with less than 100% network reliability.
Discussion around this. This has been taking place for a couple of months, so it is being looked into.
SI-1 ATLAS Weekly Review and Plans [DCos]
Software computing week – plenary talks. Interesting topics.
WLCG resources was discussed.
Changes to resource request profiles ’27 onward…
X509 will be retired in summer 26.
Varnish server at RAL now – this represents a difference of policy to CMS.
Zac Marshall ICP appointment to board.
SI-2 CMS Weekly Review and Plans [DC, KE]
-quiet week at tier 1
-slow behaviour on ECHO today, possibly due to final weighting up of new storage. Looking into this
-Waiting on response from Fermilab about issues between the 2 sites (Fermilab scheduler -> RAL pilots)
-Bristol in and out of the waiting room
– More (test) failures at Brunel, but it continues to run jobs
SI-3 LHCb Weekly Review and Plans [AM]
-quiet at the moment and no outstanding tier 1 issues
– Queen Mary storage issue tier 2
-IPv6 issue at Sheffield
SI-4 Operations Meeting Report [SS,PG,PC] –
-RAL Glasgow transfer issue was discussed at the ops meeting.
-Reminder about registration for GridPP54.
SI-5 LCG Management Board Report of Issues [DB]
Next meeting is tomorrow.
SI-6 External Contexts (eg NGI/EGI) [PC/JH]
NTR
REVIEW OF ACTIONS
868.3 DB and SS to look at Storage accounting – ongoing
Next Meeting
Next PMB meeting is on the 28th of July.