Diagnostic configuration diskette

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The Diagnostic Configuration diskette has two main purposes.

The first purpose of the Diagnostic Configuration diskette is to allow the refresh rate of the graphics adapter to be set to a different value than the default. The default value is 60Hz. If the graphics display's refresh rate is 77 Hz, then set the refresh rate to 77.

The second purpose of the Diagnostic Configuration diskette is to allow a terminal attached to any RS232 or RS422 adapter to be selected as a console device. The default device is a RS232 tty attached to the first standard serial port(S1).

Each of these can be accomplished by using the Create Customized Configuration Diskette Task.

A valid Diagnostic Configuration Diskette contains the following files:

  • ./.signature
  • ./CONSDEF
  • ./REFRESH

The .signature file contains a single line describing the diskette purpose. For this diskette, the description should be /etc/diagconf.