Oracle configurations Hardware Specifications


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Systems Overview

  • Systems Overview

  • Oracle configurations

  • Hardware Specifications

  • Issues

  • Future plans



ATLAS: 3 nodes RAC (OGMA)

  • 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



OGMA and LUGH:

  • 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


FTS:

  • 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



OGMA and LUGH:

  • 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


FTS:

  • 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


Little memory especially for LFC and FTS

  • 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)



Move to new hardware

  • 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



3D ATLAS ~mid June

  • 3D ATLAS ~mid June

  • 3D LHCb ~end August

  • TAG ~beginning of September




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