GSC Sentinel-2 PDGS SRD - emits - ESA

GSC Sentinel-2 PDGS SRD
Issue 1 Revision 2 (draft) - 25.07.2010
GMES-GSEG-EOPG-RD-09-0028
page 101 of 204
S2-PDGS-AI-210
The PDGS/AI function shall be able to perform incremental backups from a previous full
backup of the data inventory.
S2-PDGS-AI-215
The PDGS/AI function shall be able to restore the data inventory based on full /
incremental backups.
S2-PDGS-AI-220
The PDGS/AI function shall be able to regenerate the full inventory based on its contents
in case of contingencies.
S2-PDGS-AI-225
The PDGS/AI function shall raise alarms autonomously to the operator on major operation
contingencies such as disk I/O errors, disk free space thresholds surpassed, etc.
5.7.2 PERFORMANCE REQUIREMENTS
S2-PDGS-AI-230
The PDGS/AI function shall support a sustained throughput with multiple random access
for simultaneous data ingestion and retrieval operations over the whole archive (excluding
LTA) versus the DPC function of at least 300Mbps input rate and 300 Mbps output rate
to/from the archive (not applicable to LTA archive access)
S2-PDGS-AI-235
The PDGS/AI function shall support a sustained throughput with multiple random access
over the whole archive (excluding LTA) of at least 200 Mbps of data delivery activities
towards the DAG function.
S2-PDGS-AI-240
The PDGS/AI function shall support the necessary data throughput towards a co-located
LTA service function to sustain the continuous archiving of all the Level-0, Level-1B,
Level-1C and TCI data along mission-time.
5.7.3 OPERATIONAL REQUIREMENTS
S2-PDGS-AI-245
The PDGS/AI function shall be deployed and operated locally in each centre requiring
archiving capabilities i.e. in CGSs, in PACs, and in the MPAC.
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