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 100 of 204
S2-PDGS-AI-170
The granularity of archive-to-archive circulation and data-retention management
operations shall not go beyond the main levels of the archive hierarchy, preventing the
dissociation of its leaf components (.e.g. single spectral band data).
S2-PDGS-AI-175
The PDGS/AI function shall be able to generate archive update reports systematically on
every new data ingestion, modification or removal from storage and provide it to the DAX
function for global index management and cataloguing purposes. Accordingly the archive
update reports shall be comprehensive of all metadata required by the DAX function to:
uniquely and unambiguously identify each item;
identify the source archive centre where the data relies or was removed;
characterise the on-line, off-line or unavailable availability property of the item;
characterise the data for cataloguing and filtering purposes (e.g. product-type,
geographical coverage, quality checks, etc) as required by the MMUS function.
S2-PDGS-AI-180
The PDGS/AI function shall provide functionality to the operator of regenerating archive
update reports over a defined selection of orbits or over the full inventory e.g. to recover
from contingencies of the DAX function.
S2-PDGS-AI-185
The PDGS/AI function shall allow the operator to set a local archive temporarily
unavailable for data-access (e.g. for maintenance activities). The availability/unavailability
status of the archive shall be systematically and immediately reported to the DAX function
under the form of unavailability reports.
S2-PDGS-AI-190
The PDGS/AI function shall deny access to the DAG function for data retrieval operations
during unavailability periods by acknowledging the data-access requests with an
unavailability notification message.
S2-PDGS-AI-195
The PDGS/AI function shall archive the Level-0 PDIs in SAFE format.
S2-PDGS-AI-200
The PDGS/AI function shall be able to handle large data files greater than 2GB.
S2-PDGS-AI-205
The PDGS/AI function shall be able to perform full backups of the data inventory.
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