Dear All,
In today’s ops meeting we looked at the IPv6 status across GridPP sites. Please make sure you keep this page updated with any new address allocations or dualstack deployments: https://www.gridpp.ac.uk/wiki/IPv6_site_status.
I said that I would lookup the requests that have been received so far in the HEPiX WG/WLCG. A relevant update was given by Dave Kelsey at the October GDB: http://indico.cern.ch/event/272778/contribution/3/material/slides/1.pdf.
The requests recorded in that talk (and expressed within the HEPiX WG):
1. CMS
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"Would like to have a substantial fraction of CMS data accessible via AAA through IPv6 by end 2015 -to use from IPv6-only WN (GDB Sep 2014)."
2. LHCb
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Working on a patch for DIRAC. CVMFS access works on dual-stack and IPv6-only. So no request as yet.
3. ATLAS
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"ATLAS would therefore make the following requests to sites so that we can in a position to take advantage of IPv6 resources when they come available:
• Request that all Tier 1s engage with the HEPiX/WLCG IPv6 task force.
• Request that all Tier 1s provide a dual stack PerfSONARmachine by April 2015.
• Request that T2Ds provide a dual stack PerfSONAR machine by August 2015.
The PerfSONAR machine should be located in their network to give an accurate performance monitoring of their Storage.We believe that the recently released perfSONAR3.4 is fully compatible with IPV6 but we (IPV6 task force) will be testing this and hope to confirm this by November. ATLAS would support sites that wish to be early adopters and deploy dual stack SEs.”
4. HEPiX WG request to WLCG
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During next 6 months (by end of March 2015)
- We aim to perform enough tests of dual-stack SE services with the sites in the working group to gain confidence
•Propose a fuller WLCG SE dual-stack deployment plan (April)
–For consultation with Ops, Experiments, GDB and MB
–Together with guidance for sites•Some central services will also need to be dual-stack
•PerfSONAR remains a great place to start with dual-stack–Request Tier 1 to deploy by April 2015–Request Tier 2 (if possible) deploy before the long physics run (summer 2015).
Conclusions:
A. As mentioned at today's meeting I think all sites should now be actively seeking IPv6 address allocations - this will help us move forward in 2015.
B. More sites are encouraged to join the testing of the the HEPiX WG, and ATLAS and CMS storage testing.
C. ATLAS T2Ds should aim to have perfSONAR dual stack by August 2015.
D. CMS sites (connected with AAA) should aim to have their storage IPv6 ready by autumn 2015.
regards,
Jeremy
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