Login

ATLAS UK Cloud Support

→ Europe/London
Zoom

Zoom
James William Walder (Science and Technology Facilities Council STFC (GB)), Jyoti Prakash Biswal (Rutherford Appleton Laboratory)
Description

https://cern.zoom.us/j/98434450232

Password protected (same as (new) OPs Mtg)

Videoconference
ATLAS UK Cloud Support
Please log in
Zoom Meeting ID
98434450232
Host
James William Walder
Useful links
Join via phone
Zoom URL
    • 1
      Status
    • 2
      Ongoing Items
      • a) Storageless Site tests

        Oxford and Birmingham testing

        Ox: ADCINFR-185
      • b) Storage migrations
        Brunel: DPM to Ceph
        Lancs DPM: ATLDDMOPS-5588
      • c) Network usage for LHCOPN/LHCONE meeting (October)

        Asked to help collecting information to add to the ATLAS presentation at the next LHCOPN/LHCONE meeting.

        A Couple of plots available showing the Manchester upgrade (local prometheus vs ddm dashboard. But there are few more info and plots we can collect.

        • For representative sites (e.g. 1k slots, 5k, 10k, 100k) network plots ,
          FTS and internal (split).
          → important to know the external network config.
        • Sites with Ceph can the internal storage replication traffic be monitored?
          Looking at RAL, Lancs and Glasgow here

        • CVMFS cache traffic manchester squids don't go beyond 30MB/s with an average of 7-8 MB/s so ~ 60-70 Mb/s is negligible.
          I assume the same for everyone?

        • StorageLess sites Oxford and Bham plots.
          The picture James presented at gridpp48 was a bit foggy. It is not clear if the caches work or they are a nuisance.
          But to me the main problem is to understand if we have a monitoring we can reliably look at when there are changes such as enabling disabling VP.
          Or adding removing the cache between the remote node and the WNs.

    • 3
      News round-table
    • 4
      AOB
      ATLAS Monitoring (UK Cloud)
      TWiki:StorageSetUp
Powered by Indico v3.3.2-pre