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1.7 Notes on the Storage Space Management of the NANDrive™
The operating system and the firmware of the BlueBox require a disk space of about 45 MB.
The
operating system
of the BlueBox (called
storage firmware
) consists of Linux® and BlueBox-specific
components, the current version when creating this manual is 3.27
The
firmware
is the BlueBox application software on the operating system, the version described here is
4.02.06
The version of the storage firmware and firmware are listed in the system information (8.2.6 Help menu
8.2.6.1 System Information).
The following data is stored on the NANDrive
™
:
•
BlueBox configuration, i.e. password, BlueBox serial number, system protocol,
number of virtual sensors, Internet access data, etc.
•
Configuration of the virtual sensors, i.e. name, unit, interval etc. as well as all AMS formulas.
•
Sensor values/actuator values, i.e. sensor measurement values/actuator status values, spectra,
calibration protocols etc.
•
The settings of external protocols, e. g. the Modbus mapping table
If the NANDrive
™
memory space is full, sensor data are deleted daily to create space for new sensor data. Sen-
sor data consist of the measurement values
∗
and the log files of the sensors (sensor protocol, calibration pro-
tocol and system protocol).
The oldest data is deleted first.
A measurement value needs 8 –12 bytes (16 – 20 bytes with GPS data).
A spectrometer absorbance spectrum needs 1605.
•
Example
:
BlueBox,
NANDrive™
with 512 MB, 1 Sensor, 1 Spectrometer
At a measurement interval of one minute approx. 0.5 MB for the sensor and about approx. 70 MB for
the spectrometer are assigned to the
NANDrive™
per month.
So the deletion of old sensor data starts here after approx. 5½ months
It is recommended to choose the measurement interval as large as possible.
∗
and possibly GPS data contained therein
