1. PMT and HPD Databases University of Iowa HEP Eric Berry eric-berry@uiowa.edu

2. 2 Iowa HEP Databases MySQL based MySQL based Web interface Web interface –http://omega.physics.uiowa.edu/HEP –Dadabik Open source web interface Open source web interface http://www.dadabik.org/ http://www.dadabik.org/ –Secured by web based authorization –Contact Iowa HEP for access Hosts two databases Hosts two databases –HPD – created by Minnesota, hosted by Iowa –PMT (Photomultiplier Tube) – created by Iowa Contains test data for the two devices Contains test data for the two devices

3. 3 Database Layouts PMT PMT –All test data contained in one table 16 columns representing physical properties tested and test details 16 columns representing physical properties tested and test details One row per specific pmt tested One row per specific pmt tested HPD HPD –Data dispersed across 14 Tables One table per physical property measured One table per physical property measured One row per test performed One row per test performed

4. 4 Iowa ITS Databases Oracle based database Oracle based database Hosted at ITS Hosted at ITS –loaf.its.uiowa.edu Backup of PMT Database Backup of PMT Database –Migration from MySQL in Fall of 2004 –For ease of future transfer to Fermilab database

5. 5 Database Maintenance Periodic updates of data Periodic updates of data –New test data is inserted –Erroneous test data is replaced by data from new PMT tests MySQL software updates MySQL software updates –Security patches –Version updates Regular backups Regular backups

6. 6 Database Backups Current Backup at ITS Oracle server Current Backup at ITS Oracle server HEP Hosted backup server HEP Hosted backup server –pion.physics.uiowa.edu –Second MySQL Database server –Nearling completion Scripted to backup databases nightly Scripted to backup databases nightly Backups archived for historical restore to specific date. Backups archived for historical restore to specific date. Completion expected – late August 2005 Completion expected – late August 2005

7. 7 Future Plans Migrate databases to Fermilab Migrate databases to Fermilab –Sent metadata for databases to Fermilab Spring 2005 –Use OJB Generator project to insert data into Fermilab’s Oracle database structure Continued Maintenance Continued Maintenance –Update with new test data from experiments at Iowa HEP –Complete locally hosted backup system Web interface Web interface –Custom build web interface designed for ease of access –Ease insertion of data Currently manual inserts are required Currently manual inserts are required Provide API for data collection applications Provide API for data collection applications –Expected completion Fall 2005