1. IceCube Offline Database Overview Georges Kohnen Université de Mons-Hainaut IceCube Workshops Oxford September 23rd, 2005

2. Today’s ride… Introduction Database contents Filling the Database, now and in the future Reading from the Database, interaction with offline-software YOU can do it – practical information IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 2

3. Introduction MySQL Database, “I3OmDb” Contains / will contain all the non-physics information needed by offline-software, on the SouthPole, on a cluster or on your laptop: –Detector Geometry / Calibration / Status / Run / Monitoring / Trigger… information –Ice Properties –AMANDA information –Different “lookup” tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 3

4. Introduction The stored information is time-based Records are “stacked” on each other Example: Geometry IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 4 Time Planned Geometry, whole detector Drilling: only string 21 Better calibrations: only string 21 Drilling: lots of strings 01/200401/200501/2006 “Qualifier” Drilling01/2006 Corr02/2005 Drilling01/2005 Initial

5. Geometry tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 5 AMANDA Geometry Planned geometry (IceCube + IceTop) Drilling/Installation (string 21 and stations 21, 29, 30 and 39) Corrections to these coordinates (from Kurt) (= most “real” geometry presently available)

6. IceTop tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 6

7. AMANDA tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 7 Contents of “old” AMANDA omdb used by Sieglinde

8. Charge (Calibration) tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 8 from domcal.xml files

9. DOM Configuration table IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 9

10. DOM Configuration table There are 64 variables in this table: for 5000 DOMs and 1 run = 1 day, there are 117 million entries for just one year → waaaaaay too much! → Split this table up according to the frequency at which the variables change (once a run, once a year,…) This is one of the cases where input / documentation / coordination is urgently needed! IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 A

11. DOM Monitoring table IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 B from Ignacio’s Monitoring files

12. Trigger tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 C Different design: triggers do not all have the same parameters Not filled yet

13. “Lookup” tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 D OMId ↔ (string,tube) for AMANDA DOM Serial number ↔ DOM location (string,tube) DOM Serial number ↔ DOM name/nickname RunId ↔ Run start date/time

14. Independent tables IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 E IceProperties: Effective Scattering length and Absorption length for different wavelengths (in 10 nm bins), for cos θ = 0.80 and 0.94, and for different depths: Z in 10 m bins (X and Y not (yet) available)

15. Filling the Database Until now: filled from (text/.xml) files, database created from scratch each time From this Pole season on: automatic update of Detector Calibration from DAQ for online use Then, regular synchronization of SouthPole I3OmDb with a reference Database in the northern hemisphere, and overall synchronization with this reference DB IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 F

16. Using the I3OmDb Database at SouthPole IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 10 DAQ Offline chain of modules SouthPole version SouthPole I3OmDb fill calibration information Source modules Other modules … Reference I3OmDb I3Db modules

17. Using the Database in offline-software I3Db project in offline-software: new design: not one monolithic piece of code anymore, but –one module for each stream (geometry, calibration,…) –one database service, responsible for connecting to the Database, retrieving/caching the data,… IceProperties / … are currently not used in offline-software, thus I3Db does not retrieve this information (yet) IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 11 I3OmDb Source modules Other modules … I3Db modules Physics input I3Db retrieves the information according to the date of the event Offline chain of modules

18. YOU can do it - Practical Information Primary Database server: icedb.umh.ac.be (containing this talk, information about the content, about the I3Db module and (soon) about how to set up your local copy of the Database) Secondary Database Server: ppemons.umh.ac.be Database Name: "I3OmDb" Read-only login: username "www“ (> mysql -h "server" -u www) Recommended tools: –MySql Query Browser –MySql Control Center New I3Db module ready soon! IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 12

19. This is the end Questions? Comments? (The design will soon be considered “frozen” for the pole season)!!!! Blame? Praise? Gifts? Free drinks? …? IceCube Offline Database Overwiew – Oxford – September 23rd, 2005 13