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Service Review and Plans

Join us for a detailed review of the 3D systems utilized in Barcelona's ATLAS and LHCb projects. Led by Carmine Cioffi, this workshop will cover the current Oracle configurations, hardware specifications, known issues, and future plans for migration to new systems. We will discuss the operational frameworks of OGMA, LUGH, FTS, and TAG, address significant technical challenges, and outline strategies for enhancing hardware resilience and performance. Don’t miss this opportunity to learn about the latest advancements and future directions in database management for high-energy physics projects.

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Service Review and Plans

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  1. 3D Workshop, Barcelona (ES), 20-21 April 2009 Service Review and Plans Carmine Cioffi Database Administrator and Developer

  2. Guess Where?

  3. Guess Where? BARCELLONA POZZO DI GOTTO Messina 3

  4. Outline • Systems Overview • Oracle configurations • Hardware Specifications • Issues • Future plans

  5. Systems Overview • ATLAS: 3 nodes RAC (OGMA) • third node added last week !!! • LHCb: 2 nodes RAC (LUGH) • ATLAS LFC: single instance • FTS: single instance • TAG: single instance

  6. Oracle configuration • OGMA and LUGH: • Oracle 10.2.0.4 • Jan 09 CPU • Processes = 800 • Sessions = 885 • open_cursors = 300 • _buffered_publisher_flow_control_threshold = 30000 • _db_block_numa = 1 • _enable_NUMA_optimization = FALSE • _job_queue_interval = 1 • streams_pool_size = 608MB • ATLAS LFC: • Oracle 10.2.0.3 • July 08 CPU • Processes = 150 • Sessions = 170

  7. Oracle configuration • FTS: • Oracle 10.2.0.3 • Jan 09 CPU • Processes = 350 • Sessions = 390 • TAG: • Oracle 10.2.0.4 • July 08 CPU • Processes = 150 • Sessions = 170 • All systems are supported 24/7

  8. Hardware Specification • OGMA and LUGH: • 32bit • Red Hat Enterprise Linux AS release 4 (Nahant Update 7) • RAM: 4GB • Single Dual core AMD Opteron 2.4GHz • Third node: • Two dual core AMD Opteron 2.4GH • RAM 8GB even though it uses only 4. • LFC: • 32 bit • Red Hat Enterprise Linux AS release 4 (Nahant Update 7) • RAM: 4GB • Dual core Intel(R) Xeon(TM) CPU 2.80GHz

  9. Hardware Specification • FTS: • 32 bit • Red Hat Enterprise Linux AS release 4 (Nahant Update 7) • RAM: 4GB • Dual core Intel(R) Xeon(TM) CPU 2.80GHz • TAG: • 32bit • Red Hat Enterprise Linux AS release 4 (Nahant Update 7) • RAM: 4GB • CPU: Dual quad core  Intel(R) Xeon(TM) CPU 2.80GHz

  10. Issues • Little memory especially for LFC and FTS • OGMA and LUGH run on old machines and are out of warranty • No hardware redundancy: single path, single switch and single disk array • Lost one of the TAG disk array. At the moment the database is broken • Mix hardware (OGMA)

  11. Future plans • Move to new hardware • Install Oracle 64 bit • Add more RAM • Add hardware resilience • Migrate FTS and LFC to 3 nodes RAC (6th May 09): • RAC already installed • 64 bit system • 8GB RAM • Two Dual Core AMD Opteron(tm) 2.4Gh • Looking into offsite availability

  12. Estimated dates for migration 3D ATLAS ~mid June 3D LHCb ~end August TAG ~beginning of September 12

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