Data services

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The services currently provided by LSDF are:

  • Storage, comprising two systems with 1,4 PB and 500 TB
  • Cloud computing: OpenNebula cloud environment
  • Hadoop data intensive computing framework

The "Hadoop cluster" consists of

  • 58 nodes with 464 physical cores
    • 2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active
  • 36 GB of RAM
  • 2 TB of disk each
  • 1 GE network connection
  • OS Scientific Linux 5.5
    • Linux kernel 2.6.18

plus

  • 2 headnodes
    • 2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active
  • 96 GB of RAM
  • 10 GE network connection
  • OS Scientific Linux 5.5
    • Linux kernel 2.6.18

All nodes are however SHARED between the different Hadoop tasks and the OpenNebula virtual machines.