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Controls for LHC startup - PowerPoint PPT Presentation


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Controls for LHC startup. E. Hatziangeli Sep . 2008. Timing No issues. New versions of the LHC gateway RT task, LTIM and CBCM performed correctly without any problems XTIM rock solid! Access to equipment - Equipment servers (FESA/CMW) BT, Collimators, RF OK BI

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Controls for LHC startup


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slide1
Controls for LHC startup

E. Hatziangeli Sep. 2008

slide2

Timing

  • No issues. New versions of the LHC gateway RT task, LTIM and CBCMperformed correctly without any problems
  • XTIM rock solid!

Access to equipment - Equipment servers (FESA/CMW)

  • BT, Collimators, RF OK
  • BI
    • BLM OKBPM some FEs instabilities observed by the concentrator – BI investigates
    • Observed BCT, BTVs,, BSRT,.. FEs accessed by several clients => degradation of FEs
      • Solution with CMW fanout GW (one cliet access the FE) is being investigated - deployed asap
  • PO stable
    • New CMW release today to correct rare bug (asynchronous CMW commands) causing crashes

E. Hatziangeli Sep. 2008

slide3

Logging

  • Full logging on all systems applied => No data loss, no issues observed
    • General logging
    • LHC Collimators
    • BPM logging
    • BLM logging
    • FGCs – 0.5Hz fixed rate + on change

Database

    • Timber was used extensively => lots of queries => high CPU usage
      • Investigating solutions to spread the system load over allof the hardware resources in the cluster

RBAC settings

  • RBAC-policy = lenient
  • RBAC behaved correctly during the test
    • Last minute OP decision to use “Public” Consoles in the center of LHC bay for LHC Operations => had to be quickly authorized for operations
  • Plan to move to stricter policy soon for PO and BI
    • Property protected : token needed and rule is checked
    • Property not protected : grant and no token needed

E. Hatziangeli Sep. 2008

slide4

Looking into ….

  • High load on consoles – CCM visual indicator to be implemented
  • Certain GUI applications take a lot of resources – being investigated
  • JMS service does not handle well misbehaving clients – exponential backup will be implemented in JAPC
  • FESA/CMW consolidation continues – less critical bugs are being addressed
  • RBAC
    • automatic renewal of token will be implemented
    • Improvements on the A1 role picker component
  • OASIS
    • Signal configuration – commissioning support of the system
  • Logging
    • New requests for logging is being processed (BI, RF, ..)

E. Hatziangeli Sep. 2008

summary
Summary
  • Stable performance of the Controls Infrastructure,no issues on Timing, Logging, Databases, RBAC, FESA/CMW servers, ..
  • Controls successfully supported the LHC startup

E. Hatziangeli Sep. 2008