1. Setting-up G-POD @ ESAC
A precursor to a distributed web of processing services
Fernando Félix-Redondo
On behalf of the
SMOS DPGS Operations Team

2. Contents What is SMOS mission about? SMOS DPGS resources @ ESAC
SMOS Testbed & G-POD
How to extend G-POD to ESAC without disturbing too much?
Devised Architecture
Technologies
Devised Architecture (II)
Plan
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

3. SMOS Mission Part of the EO Exploratory Programme
It was launched in 2009
SMOS observes two key variables:
Soil Moisture
Ocean Salinity
Development of climatological, meteorological and hydrological models of the Earth.
Platform: Proteus, developed by CNES
Payload: MIRAS (Microwave Imaging Radiometer with Aperture Synthesis)
SMOS Ground Segment
Satellite Operations Ground Segment (CNES)
Data Processing Ground Segment (ESAC)
including payload operations and data distribution
Long Term Archive (Kiruna)
Acquisition (Svalbard, ESAC)
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

4. SMOS DPGS resources@ESAC
Data Processing Ground Segment
FOS
SPGF, SMOS Plan Generation Facility
PLPC, Payload Programming Centre
XBAS
It acquires 3 to 4 passes daily
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

5. SMOS DPGS resources@ESAC (II)
PDPC, Payload Data Processing Centre
FPC
Archive
NRT Data Processing Facility
FRP, Fast Reprocessing Platform
customisation of the PDPC/FPC for the off-line reprocessing campaigns
Powerful systems
Most of the time, it is …idle
This platform constitutes the hardware infrastructure where the G-POD node will be installed on.
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

6. GPOD & SMOS Testbed
SMOS L1 and L2 processors are already installed in G-POD
L0, L1 and ADFs production from to (~25GB daily and 200 products)
SMOS Raw Data only at ESAC (L0 reprocessing)
Regardless other considerations, it makes sense to extend the computational facility to ESAC
SMOS produces 7-8 Gbytes raw data daily
Complete daily L0, L1 and ADFs production is distributed from to
ESAC is the only site where original telemetry files are archived (L0 reprocessing)
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

7. How to extend GPOD to ESAC without disturbing too much?
Advantages
Constraints
A powerful computational infrastructure (FRP) underutilized
Direct access to all mission´s data including raw telemetry files
FRP must keep carrying out future reprocessing campaigns with same performance (20:1)
A third-party company is in charge of FRP´s software mainteinance
How can we conciliate both sides of this table?
Virtualization
Cloud
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

8. Devised Architecture (I)
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

9. Our technology choices
Why these ones?
Old and fruitful relationship with OpenNebula creators (gridway)
OpenNebula is already used in other ESA projects (HelixNebula)
OpenNebula allows the configuration of hybrid clouds
KVM:
Price
Trust
Know-How
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

10. Devised Architecture (II)
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

11. Project Terradue will lead the project for extending GPOD to ESAC
ISDEFE will deploy and operate the GPOD node and infrastructure in ESAC
Kick-off meeting will be held next 30th January
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013

12. If (end_of_presentation() == ‘yes’) say(“Thanks!”);
If (hands_up() == 0)
say(“Questions?”);
SMOS DPGS Ops Team
ESRIN, HMA AWG Meeting #1 2013