The CMS ECAL Database Services for Detector Control and Monitoring. Giovanni Organtini Sapienza Università di Roma & INFN-Sez.
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1 The CMS ECAL Database Services for Detector Control and Monitoring Giovanni Organtini Sapienza Università di Roma & INFN-Sez. di Roma
2 The CMS experiment 2/25 March 25, 2009 G. Organtini 2009
3 CMS and ECAL 3/25 March 25, 2009 G. Organtini 2009
4 ECAL figures of merit PWO Scintillating Crystals coupled with a photodetector Barrel (36 SM) avalanche photodiodes for light detection 1224 HV channels 684 LV channels optical fibers for transmission monitor 6120 temperature sensors Endcaps (18 sectors) vacuum phototriodes for light detection 52 HV channels 160 LV channels optical fibers for transmission monitor 4/25 March 25, 2009 G. Organtini 2009
5 The database project Michel arriva dans une salle immense surmontée d un dôme en verre dépoli; au mielieu, et sur un seul pied, chef d œvre de mécanique, se dressait le Grand Livre [ ]. Il avait vingt pieds de haut; un mécanisme intelligent permettait de le diriger comme un télescope, [ ] un systèm de légères passerelles, ingénieusement combiné, s abaissait ou s élevait suivant les besoins de l écrivain. Sur les feuillets blancs, larges de trois mètres, se déeroulaient en lettre de trois pouces, les opérations journalières de la maison. [ ]Quant aux chiffres, superbement superposés dans les colonnes d addition, les francs se détachaient en rouge écarlate, et les centimes, poussés jusqu à la troisième décimale, ressortaient en vert foncé. 5/25 March 25, 2009 G. Organtini 2009
6 Aims of ECAL DB Project Storing construction data Quality Control data and preliminary calibrations Crystal/photodetector/read-out channel association(s) Bookkeeping of detector conditions (DCS) Monitor of HV/LV status, temperature, etc. Bookkeeping of global run conditions DAQ/Trigger configuration and setup Pedestals, constants, HV status, Low Voltage (LV) status Bookkeeping of local run conditions DCU: measurement of front end electronics parameters Pedestal: measurement of electronic pedestals Laser: measurement of the transparency of the crystal 6/25
7 Detector monitoring LHC fill (20 h) t DCU: detector control unit Taken (daily) between runs Measure FE parameters (gains, temperatures, dark currents, voltages) Pedestal: measure pedestal and noise Laser: measure detector response to laser light injected in crystals (monitor transparency) 7/25 DCS: detector control system temperature, humidity, RO status, HV, power,
8 Monitoring within fills LHC fill (20 h) t LHC abort gap (3 µs) t 8/25
9 Monitoring during physics LHC abort gap (3 µs) t LHC bunch t 25 ns 9/25
10 Data flow There is an online database on the CMS site and an offline database at CERN site OFFLINE ONLINE 10/25
11 Data flow DAQ/Trigger configuration sent to the detector readout, is stored on the online DB OFFLINE ONLINE CONFIGURATION 11/25
12 Data flow Conditions measured during runs (non event data) or in local runs are stored on the online DB ONLINE OFFLINE CONFIGURATION CONDITIONS 12/25
13 Data flow Online data are automatically (partially) copied on the offline DB for physics reconstruction ONLINE OFFLINE OFFLINE CONFIGURATION CONDITIONS 13/25
14 DBMS & Tools ORACLE database 10g Enterprise Ed bit 14/25
15 Use case: configuration Run configuration (Run Control) Detector configuration (configuration editor) DCS: HV/LV Settings (PVSS) 15/25 March 25, 2009 G. Organtini 2009
16 Use case: monitoring Data Quality Monitor, Laser monitoring Local runs (pedestals, DCU, Laser) a b0 16/25 2f2f 4c41 2f2f 6e6e 616d a31 746f 656c 2f0a 302e f0a e69 2e31 2f0a 2f2f f0a 202f 203a f 776f f 6e69 202f 0a20 6f72 0a2f 2d2d e6f c50 6f e f2f 206d 2f2f 2d2d f0a 656c 746f 3a72 746e 692e d2d f March 25, a2e e e 6f a2d e31 203a f a f74 2f2f a a f e31 6c G. Organtini 2009
17 Use case: human browsing Web Based Monitor (WBM) 17/25
18 Data access architecture Run Control Conf. Editor XDaq Monitor Qt PVSS WBM C++ Java Javascript OCCI JDBS ORACLE DBMS 18/25
19 Database tables design RUN_IOV RUN_NUM RUN_START RUN_END TABLE_META DESCRIPTION LOGIC_ID_MAP FIELD_META TYPE DESCRIPTION MIN MAX TASK_IOV RUN_IOV_ID FIELD1 FIELD2 FIELDn TASK_XXX_DAT LOGIC_ID FIELD1 FIELD2 FIELDn 19/25
20 Database tables design RUN_IOV RUN_NUM RUN_START RUN_END TABLE_META DESCRIPTION LOGIC_ID_MAP FIELD_META TYPE DESCRIPTION MIN MAX MON_IOV DCU_IOV LASER_IOV TASK_IOV RUN_IOV_ID FIELD1 FIELD2 FIELDn TASK_XXX_DAT LOGIC_ID FIELD1 FIELD2 FIELDn 19/25
21 Database tables design RUN_IOV RUN_NUM RUN_START RUN_END TABLE_META DESCRIPTION LOGIC_ID_MAP FIELD_META TYPE DESCRIPTION MIN MAX MON_PED_DAT MON_OCCUPANCY_DAT TASK_IOV RUN_IOV_ID FIELD1 FIELD2 FIELDn TASK_XXX_DAT LOGIC_ID FIELD1 FIELD2 FIELDn 19/25
22 Example RUN_IOV MON_IOV RUN_NUM RUN_START RUN_END : :34 RUN_IOV_ID SUBRUN FIELD_META TYPE DESCRIPTION MIN MAX PED_MEAN FLOAT PEDESTAL VALUE PED_RMS FLOAT PEDESTAL RMS TABLE_META DESCRIPTION LOGIC_ID_MAP MON_PED_DAT PEDESTALS CHANNEL MON_PED_DAT LOGIC_ID PED_MEAN PED_RMS /25
23 Example RUN_IOV MON_IOV RUN_NUM RUN_START RUN_END : :34 RUN_IOV_ID SUBRUN FIELD_META TYPE DESCRIPTION MIN MAX PED_MEAN FLOAT PEDESTAL VALUE PED_RMS FLOAT PEDESTAL RMS TABLE_META DESCRIPTION LOGIC_ID_MAP MON_PED_DAT PEDESTALS CHANNEL MON_PED_DAT LOGIC_ID PED_MEAN PED_RMS /25
24 Example RUN_IOV MON_IOV RUN_NUM RUN_START RUN_END : :34 RUN_IOV_ID SUBRUN FIELD_META TYPE DESCRIPTION MIN MAX PED_MEAN FLOAT PEDESTAL VALUE PED_RMS FLOAT PEDESTAL RMS TABLE_META DESCRIPTION LOGIC_ID_MAP MON_PED_DAT PEDESTALS CHANNEL MON_PED_DAT LOGIC_ID PED_MEAN PED_RMS /25
25 Channel identification RUN_IOV RUN_NUM RUN_START RUN_END Unique readout channel id MON_IOV RUN_IOV_ID FIELD1 FIELD2 FIELDn Corresponding to many different views, depending on the context physics electronics 21/25 MON_XXX_DAT LOGIC_ID FIELD1 FIELD2 (η,φ) for physics FIELDn (SM#, address) for readout (SM#, SU#, xtal#) for construction
26 Channel identification RUN_IOV RUN_NUM RUN_START RUN_END VIEWDESCRIPTION DESCRIPTION ID1NAME ID2NAME ID3NAME CHANNELVIEW LOGIC_ID ID1 ID2 ID3 MON_IOV RUN_IOV_ID FIELD1 FIELD2 FIELDn MON_XXX_DAT LOGIC_ID FIELD1 FIELD2 FIELDn 22/25
27 Example RUN_IOV MON_IOV RUN_NUM RUN_START RUN_END : :34 RUN_IOV_ID SUBRUN CHANNELVIEW LOGIC_ID ID1 ID2 ID3 CRYSTAL NULL CHANNEL NULL MON_PED_DAT LOGIC_ID PED_MEAN PED_RMS VIEWDESCRIPTION DESCRIPTION ID1NAME ID2NAME ID3NAME CRYSTAL PWO CRYSTAL COORDS ETA PHI NULL CHANNEL READOUT CHANNEL SM CHANNEL NO. NULL 23/25
28 Evolution of DB size CMS_ECAL_COND Data taking duty cycle LHC duty cycle ds/dt 10 GB/month DB Size (GB) /29 07/06 07/13 07/20 07/27 08/03 08/10 08/17 08/24 08/31 09/07 09/14 09/21 09/28 10/05 10/12 10/19 10/26 11/02 11/09 11/16 11/23 11/30 12/07 12/14 12/21 12/28 01/04 01/11 01/18 01/25 02/01 02/08 02/15 02/22 Time 24/25
29 Conclusion ECAL DB Services well established Almost ready for collisions Full end user support Variety of access methods/use cases Flexible and expandable Thanks to careful Item Description design Compact Fast retrieval of data 25/25
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