Attending: Brian, Dan, Jens, Matt, Winnie, RobC, Sam, Teng, Duncan

IRIS F2F collaboration meeting hosted by Astronomy Cambridge:
https://indico.ph.qmul.ac.uk/indico/conferenceDisplay.py?confId=446

Sort of bag of semi-randomly collected topics:
* IRIS (web) presence to itself, user communities, others?
* Cambridge doing accounting across T2 and DiRAC but associated with X.509 DN
	* Euclid and LSST asked for login service
* Accessing commercial cloud - model depends on upstairs or downstairs - several
  options, cf Andrew's presentation.
* Asked to (re)consider gender balance.  Female researchers tend to prefer "get started, you can't break it" over training courses and "driving licences"
* Scitokens and credential conversion for storage/data access
* Towards hyperconvergence of storage - and private networks connecting sites?
	* Fx Edinburgh running databases on behalf of IRIS; so database jobs need submitting to Ed.
	* Could alternatively look at SLURM submissions to several sites, as if it were one big cluster?!
	* The shared data across network is perhaps not the DEISA model (dist'd filesystem) but more
	  like data lake (or grid!) - more suited to some access patterns (e.g. WORM) than others.

* How does CVMFS access control work? other than, of course, by magic?
	* Seems to be xroot backend provides access control but doesn't use delegated credentials
	* stash cache based on CVMFS with xroot
* Rucio - where's our multi-VO support?!
	* and support for object stores?
* OpenStack as a PaaS
	* Kubernetes support
	* many people using Jupyter notebooks in the cloud
	* testing CEPHFS
	* FIM needed (currently only EGI CheckIn is available)
	* networking - need other sites' IP address (spaces)

* Workflows with Hadoop/Spark, embedded inside user work.
* How to match resources with requirements - eg bigmem machines.  Maybe we need to reinvent
  GLUE, or ClassAds?!!? or Optane, or GPU, or FPGAs.
* Need for resources matched to researchers - as usual most researchers wish to do work rather than
  spend time faffing around with technologies.  Generally a good feeling of progress even if it's not
  a single coherent infrastructure.
* IPv6 and dual stack req'd ab initio?
* Community-site matchings - 


AOB
There's a DPM technical meeting (UK) this Friday (12th) looking at future roadmap for DPM in GridPP


Daniel
https://indico.ph.qmul.ac.uk/indico/conferenceDisplay.py?confId=446
DT
https://www.brighttalk.com/webcast/663/352635
Brian
https://indico.cern.ch/event/759388/contributions/3322830/attachments/1815462/2968778/StorageEvolutionJLAB.pdf
BD
Matt
Thanks Brian!
MD
Brian
slide 4 and 5
BD
Today at 10:48 AM