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v3.3.3-pre
The timings are approximate!
Chaired by Edoardo Martelli
Apologies from: Jiri Chudoba (Prague) who reported:
There are no news from our Tier-2 in Prague regarding IPv6. All servers under our control are IPv6 enabled. 4 disk servers from the other institution (but visible via our xrootd redirector) may get IPv6 during the next year.
And from David Kelsey - who today has a clashing all-day training course.
Andrea Sciaba presents slides
slide3: 47% sites completed the deployment. CMS is leading the storage deployment
Slide 4: Analyse why the deployment didn't happen. Mostly because local network infrastructure not ready. Time scale to complete the deployment: 10% almost ready, 30% very soon.
slide 5: 75% of the site should complete the deployment in in some months
Slide 6: Still hoping to have 50% of the Tier2 with IPv6 by the end of the year.
Discussion follow:
Andrea asks: Should we officially extend the deadline? Andrea thinks no, also because there is no consequences if not met.
LHCb and ALICE can't really push the sites much.
Martin thinks that being in LS2, sites will re-factor their infrastructure. Maybe we should make a hard deadline for the start of Run3.
Tim: do we have a carrot to offer?
Bruno: BNL has FTS dual-stack, but they prefer IPv4 because they had problems.
Duncan: big companies are moving to IPv6 only in the datacentres to not have the hassle to run dual-stack. That could be a way to encourage sites.
Tim: Facebook is indeed Ipv6 only already inside the datacentres.
Andrea: at the moment there is no reasons to force WLCG sites to switch off IPv4 if they still need it.
In the end it is agreed to keep the current deadline.
Bruno: after CMS and LHCb, ATLAS is also IPv6. Alice will come in January.
Costin: NtR, waiting for the sites.
Duncan: Marian reported that new mashes of perfsonar which are dual-stack have been deployed. He suggests to remove our IPv6 mash.
Edoardo: NtR
Martin: commissioning of Castor services over IPv6 via a gateways progressing. ATLAS and CMS are ready. LHCb will move in Jan-Feb. Still waiting for ALICE to do some porting. Expected to have all the data transferred over IPv6 in March. Working with local network team to have ipv4 and ipv6 traffic on the same links . Trying to have the border router to connect at 100G. Tier2 is now on Ipv6.
Raja: LHCb is fine with IPv6 at the Tier2 at RAL. About the Tier1: there are 6 storage elements to move to Echo. one is done. The others will be moved in February.
Tim: new GEANT project start on February. Good news on perfsonar: development will continue for 4 more years.
- News on the paper?
- Continue discussion on incentives for sites for moving to Ipv6. Check with WLCG which action can be taken
- Andrea has been asked to give an update at the next GDB on the 16th January. He could also give it at the f2f meeting.
- If the two US Tier1 come up with IPv6, that would be a huge incentive
None. It is agreed to decide the dates of the next meetings at the next f2f meeting in Jan.
Minutes by Edoardo Martelli with some re-formatting by DaveK.