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NDGF All Hands 2019 1

→ Europe/Copenhagen
Main Auditorium (IJS)

Main Auditorium

IJS

Jamova Cesta 39 Jozef Stefan Institute Ljubljana Slovenia
Description

NT1 staff, and local NDGF site sysadmin meeting. The meeting location is the main auditorium of the Jožef Stefan Institute.

There will be a dinner the evening before on April 8th at 20:00. The restaurant is in the old city, bellow the castle, here are the links:
https://www.hisapodgradom.si/gostilna/contact
https://www.tripadvisor.com/Restaurant_Review-g274873-d5508614-Reviews-Restaurant_Hisa_Pod_Gradom-Ljubljana_Upper_Carniola_Region.html

and location on the maps

please, mark your food preferences here

The transportation from the airport:

1) cheapest is https://www.goopti.com/en/

2) If you want to take a taxi, do not take the expensive ones at the airport, but rather book it at http://www.taxi-intertours.si/ or at https://www.taximetro.si/

 

 

 

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Site reports:

* Dmytro is leaving for another job after the summer

* HPC2N has had several power outages since last meeting

* UiO and UiB have almost finished installing new hardware, coming online soon

ARC and compute:

* Speculation on future requirements for compute given by ALICE and ATLAS, biggest difference is 4G/core for ALICE and 2G/core RAM requirement for ATLAS will stay (no increase on ATLAS!) with hope to reduce it for ATLAS with multithreaded jobs (but no timeline for that yet).

* Shared ARC6 upgrade experiences and thoughts about upgrading the rest of the sites

* arcctl was shared as a very useful tool

Storage:

* No change in future storage use from ALICE, ATLAS will most likely move to tape carousels and use tape far more actively. Maybe reading 30-100% of data stored every year.

* Future tape technology, tapes are getting bigger and faster. Future tape pools will likely have to contend with faster speeds, will be tricky to buy something that'll keep in for a few tape generations.

* Disk: Several updates to the disk pool hardware document was agreed, Mattias will implement in the document.

* Sites need to install the IGTF CA certificates for pool nodes, no hostcerts needed.

Next meeting:

* Berne

* Maiken, Gianfranco, and Niklas chosen to PC. They should recruit one Indico expert to complete the team.

There are minutes attached to this event. Show them.
    • NDGF All Hands: Site rounds
    • NDGF All Hands: ARC and compute
      • 8
        ARC6 Upgrade experiences
      • 9
        ARC6 Documentation comments
      • 10:30
        Coffee
      • 10
        ARC6 Future Directions
      • 11
        ARC for WLCg-sites pilot mode
      • 12
        Experiment input for compute - Run 3
      • 13
        Site Upgrades - ipv6, centos 7, singularity
    • 12:00
      Lunch
    • NDGF All Hands: dCache pools and operations
      • 14
        Future tape technology

        Overview of tape technology on the horizon and implications for dCache tape pools.

        Speaker: Niklas Edmundsson (HPC2N)
        dCache tape pools-20190405-0928.pdf
      • 15
        Future disk technology

        Implications for dCache disk pools (incl revisiting pool size)

        20190409-PoolSizing.pdf
      • 16
        Tape storage accounting
      • 14:20
        Coffee
      • 17
        Tarpools

        CA certificates for tarpools
        Tarpool for HPC2N and KU
        Tape tarpool routines
        Tarpool reboot-required handling

      • 18
        Experiment input for storage - Run 3
    • NDGF All Hands: planning
      • 19
        Choice of venue
      • 20
        Program committee selection

        Decide on program committee and book first PC meeting.

    • Minutes from preparation meetings
      • 21
        Minutes 15.03

        Storage session:
        ==================
        * Future tape technology
        ** Implications for dCache tape pools
        * Future disk technology
        ** Implications for dCache disk pools (incl revisiting pool size)
        * Tape storage accounting
        * CA certificates for tarpools
        * Tarpool for HPC2N and KU
        * Tape tarpool routines

        * Tarpool reboot-required handling
        ** Experiment input for storage Run 3

        Compute session:
        ================
        * ARC 6
        ** Quick round of experience from sites already upgraded
        ** Documentation comments
        ** Future directions
        ** ARC for wlcg-sites pilot mode
        * Experiment input for compute Run 3
        * Upgrades - ipv6, centos 7

        Next meeting:
        ==============
        * Choice of venue & local organizing committee
        * Program committee and first meeting date for PC - book in calendar

         

         

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