Write; Access Mode; A.1.3 Write - Teldat Atlas 250 Installation Manual

Technical Information
221 Goodbye.
C:\atl>
Viewing the available files in the Smart Card via FTP using a Windows MSDOS screen

A.1.3 Write

Configurations can be stored in the Smart Card through FTP and from the console. Writing through FTP is carried
out as described in the "Updating the software and the configurations" appendix of this manual.
From the console, you can use the 'SAVE' and 'FILE COPY' configuration process commands. The 'SAVE' com-
mand always uses the active storing unit. The 'FILE COPY' command allows you to select a unit distinct to the active
one (in order to specifically refer to the Smart Card, you need to use the unit identifier "S:" (s following by a colon).
For further information, please see manual "Dm704-I Configuration and Monitoring" .
Choosing the active unit is done through the 'CONFIG-MEDIA' configuration command. This allows you to select the
following options:
• SMARTCARD-FLASH. Both mediums are considered active; priority however is given to the Smart Card over the
Flash memory.
• SMARTCARD. The Smart Card is considered as the only active medium or unit.
• FLASH. The Flash memory is considered as the only active medium or unit.
By default, the device has the value 'SMARTCARD-FLASH' configured in those devices that support Smart Card and
the 'FLASH' option for those devices which don't. You can check which unit is active by using the 'FILE LIST' com-
mand.
As previously indicated in this appendix, the configuration in the Smart Card is stored in compressed format. To in-
dicate this, the files stored in the Smart Card have the last letter of the extension changed to " z" . If the file you wish
to store in the Smart Card does not have any extension a " . z" is added. Any file saved in the Smart Card will be re-
corded in compressed format through the gzip compression application.
In cases where the file recorded in the Smart Card is already sent in gzip compressed format, this will not be com-
pressed nor will the extension be modified. Files transferred via FTP from the Smart Card to a PC will be transferred
in exactly the same way as they were stored in the Smart Card, i.e. compressed. The compression format used can
be decompressed with the majority of decompression applications available on the market including WinZip. The
'FILE COPY' command however, should the original file be a Smart Card file destined to be a Flash memory file, will
copy the file in decompressed format.
Additionally there are commands to delete ('FILE DELETE' command) and to rename ('FILE RENAME' command)
files in a storage unit. For further information on these commands please see manual "Dm704-I Configuration and
Monitoring" .
A.1.4 Access Mode
Under normal circumstances, the device on booting or on saving the configuration uses the storing medium which is
configured as active.
When the device boots, the behavior, depending on the active medium, is as follows:
• SMARTCARD-FLASH. The Smart Card configuration is read. If the card is not present or the file cannot be found,
the operation is repeated in the Flash. If the file is not found in the Flash memory then the device will boot with the
default configuration.
After reading the Smart Card configuration file the device checks to see that this is written in the Flash memory. If
the configuration is not present then the device enters it so that both mediums are synchronized.
• SMARTCARD. The Smart Card configuration is read. If the card is not present or the file cannot be found, the
device will boot with the default configuration.
• FLASH. The Flash configuration is read. If the file cannot be found the device will boot with the default configura-
tion.
On saving the configuration through the 'SAVE' command, the behavior, depending on the active media is as follows:
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Atlas 250