Data services

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.