Compaq FTAM Responder Support of | Create Mappings |
ISO FTAM Functions | |
fall within the range supported by the Compaq responder for that document type and string-significance value, as follows:
Document | String-Significance | Maximum-String-Length Value |
Type | Value |
FTAM-1 | not significant | 1 <= maximum-string-length <= 7148 |
FTAM-1 | fixed | 1 <= maximum-string-length <= 7148 |
FTAM-1 | variable | 1 <= maximum-string-length <= 7148 |
FTAM-2 | not significant | 1 <= maximum-string-length <= 4072 |
FTAM-3 | not significant | 1 <= maximum-string-length <= 4096 |
FTAM-3 | fixed | 1 <= maximum-string-length <= 4072 |
FTAM-3 | variable | 1<= maximum-string-length <= 4072 |
If the maximum-string-length parameter is not specified or if the specified value does not fall within the defined range, the responder returns a negative confirm containing diagnostic message 1001, indicating unsupported parameter values.
Note that the Compaq responder does not keep a permanent record of the contents-type parameter values used on creation of a file in the VFS. These values are directly available only during the life of the FTAM association in which the file was created. When a remote initiator makes a create request followed by an open request and the open request specifies a contents type of unknown, the responder uses the contents-type parameter values specified in the create request. However, this information is lost when the association is terminated. On subsequent accesses to the file via a select request followed by an open request with a contents type of unknown, the responder uses its default values based on the Guardian file structure, as described in the next subsection, “Select-Open Mappings.”
Although Compaq FTAM supports the NBS-9 document type, it does not appear in Table 4-6 because Compaq FTAM cannot create NBS-9 files. The “NBS-9 Documents” subsection, later in this section, describes NBS-9 files in more detail. The Compaq responder also supports the NonStop Structured Query Language (NonStop SQL) table files for reading and writing. Compaq FTAM provides no support for creating SQL files.
4-6
