Information Technology Reference
In-Depth Information
This would improve the ability of the System Administrator to guarantee the
processing ability in more critical conditions. The overall impact of this system and
its potentials are quite clear to both people that developed it and used it.
Of course we have tested a limited number of possible changes. Most importantly
our emulators match existing chips; we argue however that we do have the source
code for QEMU which does cross-emulate a whole set of chip processors e.g. emu-
lates an x86 chip on a SPARC64 and vice-versa. We hope that it is plausible argue
that, based on QEMU, an emulator could be implemented for some future chip -
however this is not guaranteed.
The need to preserve and link tools and data is becoming more and more evident
and the ESA team is confident that the CASPAR solutions are going to be increas-
ingly adopted in the years to come; the application is available now and is open to
everyone for exploitation and further work.
20.5.3 CASPAR Components Involved
The complete events chain for the scenario of the ESA scientific testbed is described
in the following table:
Main CASPAR
components
involved
Action
Notes
L1 data and L1->L1C processor
are ingested in the PDS of the
CASPAR system
•
PACK
Data and processor are
OAIS-compliant (SAFE-like
format), with appropriate
representation information and
descriptive information
•
KM
•
REG
•
PDS
•
FIND
Data and appropriate
Representation Information are
returned to users according to their
Knowledge Base
•
FIND
It is also possible to ingest as AIP
an appropriate L1 to L1C
Transformation Module into the
PDS and access directly L1C data
(with fixed user-decided
calibration parameters) using a
processor previously installed on
the user machine
•
DAMS
•
KM
•
REG
The OS or gLib version changes
and an alert is sent by informed
users to appropriate people
•
POM
People interested about changes
are POM dedicated topic
subscribers
The system administrator retrieve
and access the source code of the
processor
•
FIND
The system administrator is one
of the POM dedicated topic
subscriber and has the
responsibility to take appropriate
corrective actions
•
DAMS
•
PDS
•
REG
