If you use an extensive set of options to start your server, you may find it useful to store them in a configuration file.
The @data option
allows you to specify environment variables and configuration files
on the command line. To specify a configuration file, replace data with
the path and name of the configuration file:
% start_iq @configuration_filename.cfg dbname.db
If a startup parameter is passed from the command line and the same parameter exists in the .cfg file, then the value in command line overrides the one in .cfg file.
Configuration files can contain line breaks, and can include
any set of options, including the @data option.
Use a number sign (#)
to designate lines as comments. An ampersand (&)
character that appears by itself at the end of a line indicates
that the previous token is continued on the next line. See the Sybase IQ Utility Guide for
a complete list of switches.
When you start a server and do not include any command line parameters or specify a configuration file, IQ retrieves the start-up parameters from a default configuration file, default.cfg, in the $IQDIR15/scripts directory. The default.cfg file is also the source of parameters for the Service Manager, the params.cfg file used by Sybase Central, and in multiplex configurations. You can maintain consistency by editing parameters in default.cfg.
If you need to increase the amount of virtual memory, for example, change the parameters in default.cfg to reduce the virtual memory that other programs use, add swap space to machines, or reduce IQ memory demands (cache sizes, thread count, stack size, etc.).
You can use the dbfhide (File Hiding) utility to encrypt your configuration files. For details see the SQL Anywhere Server Database Administration Guide. If you specify log file parameters (-o logfile) in encrypted files, the log is not available to the IQ Agent or start_iq, which is unable to display server log information back to the database administrator. You may want to add parameters that do not require encryption on the command line or in a separate configuration file. For example:
% start_iq @encrypt_params @other_params
– Or –
% start_iq @encrypt_params -n myserv -c 400 -o %IQDIR15%/logfile/myserv.log
