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Controls for LHC startup

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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  1. Controls for LHC startup E. Hatziangeli Sep. 2008

  2. 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

  3. 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

  4. 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

  5. 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

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