PVSS Evolution in Relation to Databases

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Presentation transcript:

PVSS Evolution in Relation to Databases Piotr Golonka CERN EN/ICE-SCD Databases TEG Workshop 09 November 2011 Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS (WinCC OA) at CERN Commercial SCADA s/w from ETM, part of Siemens => Simatic WinCC Open Architecture Around 600 PVSS production servers (Grouped in applications via PVSS distribution mechanism) Present in all CERN Domains Experiments DCS for LHC experiments, COMPASS, HARP, NA62 ECS for LHCb Accelerator systems Cryogenics, Quench Protection, Vacuum,etc. Infrastructure C&V Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS Architecture Highly modular and scalable PVSS O(100) Drv Drv Drv Dist Manager Drv Event Manager Drv O(100) Archive Data Manager Drv Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS & Databases Archiving Oracle RDB Archiver Values Meta data: 1 temperature readout != 4 bytes Timestamp, quality, user, manager, etc. Online Trends, Offline data analysis (“conditions” data) Alerts Full alarm cycle (CAME, WENT, acknowledge, comment) Configuration JCOP Framework Configuration Database Tool (Oracle) Small amount of data compared to Archiving... Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS Oracle Archiver: history Data storage Fruit of collaboration of CERN and ETM IT/DB, ALICE DCS, EN/ICE Made application scale for RAC servers Optimized; direct path, temporary tables, partitioning, etc... ~ 250.000 values/s into 6-node RAC in 2009 (150 PVSS systems) Data retrieval generic “direct” queries data processing in PVSS (dpQuery/dpGetPeriod) Other online tools (via RDB API) Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS Evolution WinCC OA 3.X Yearly release cycle 2009 2010 2011 2012 2013 2013 2014 3.8 3.9 3.10 3.11 3.12 4.0 Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS Evolution WinCC OA 3.X Yearly release cycle, service-packs 2009 2010 2011 2012 2013 2013 2014 3.8 3.8SP1 3.8SP2 3.9 3.10 3.10SP1 3.11 3.12 4.0 Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS Evolution WinCC OA 3.X Yearly release cycle, service-packs Planned features (related to databases) No fundamental change; HDB-RDB synchronization, cascaded hierarchy of archives & DBs “archive compression” in the database (in 3.10) Pre-calculate reduced (aggregated) data sets to optimize queries e.g. hourly,daily average(), min(), max() of values Tests ongoing in EN/ICE & IT/DB 2009 2010 2011 2012 2013 2013 2014 3.8 3.8SP2 3.9 3.10 3.11 3.12 4.0 Piotr Golonka, 9 November 2011 PVSS Evolution & DB

PVSS Evolution (Medium Term) WinCC OA 4.0 : Autumn 2014 (?) (r)Evolution in architecture Managers, distributed systems “Logging Services” to replace the current archivers Separate DB-part from WinCC_OA-part Plugins for database frontends Generic “storage” interface Targetted to SQL (relational-model) systems Openlab work-packages with Siemens Fellow in EN/ICE Marcin Bogusz Oracle plugin for future WinCC OA logging service ETM already has plugins for MS SQL Server and sqlite Trying to convince ETM to have a more abstract interface (not focussed on SQL) Piotr Golonka, 9 November 2011 PVSS Evolution & DB