Ralph Lange EPICS Seminar IHEP Beijing 2002 Oracle at BESSY Ralph Lange EPICS Seminar IHEP Beijing 2002

Outline System Data Content Current Status Experiences Future Concept Archiving Tools Hints

Some System Figures Oracle 8.05 on HP-UX 10.20  in preparation: Oracle 8i on HP-UX 11 ~ 250 tables (not optimized) Data store takes ~ 3 Mbyte Complete installation is ~ 3.5 Gbyte (including sources, web server etc.)

Data Contents Machine Parameters Geodesic data of all devices Measured magnet conversion factors Electronic runbook Physical and electrical data of Power supplies Insertion devices Magnets EPICS configuration data Administration data (names, phones, rooms)

Current Status – Import

Current Status – Export

Experiences and New Approach Script Wars The Chaos Strikes Back The Return of the API Design RDB should be only source of information Generic structure to hold all EPICS configuration data Granularity in Oracle down to EPICS database fields – no more templates Structure contains hierarchy trees

Properties and Migration Status Complicated structure (~ 25 tables) that is only accessible through tools Once the toolset is in use, additional applications´ configurations are easy to add  Once it works, we won´t need it anymore? Structure definition is stable Generic tools are being created

Archiving Current work: using Oracle as a backend for the Channel Archiver (instead of the proprietary binary file format)  BESSY (Thomas Birke)  SLAC (Lee-Ann Yasukawa, Bob Hall) Will need Oracle 8i or later

Tools in Use at BESSY Oracle development: Embacadero (ER/Studio) @ Windows TORA (Freeware) @ Win, Linux Oracle Tools Web interface: PHP  Oracle Library Parsers (creating config and EPICS db): Perl (and C?)  DBI module (Oracle Libs)

Hints Oracle Services (web based support database) Metalink (available with Oracle license): bugs, patches, … Technet (free): documentation, test software