IBM H SERIES RS/6000 User Manual

Also see for H SERIES RS/6000: Installation and service guide Installation and service guide

Undefined Terminal TypesIf an undefined terminal type from the DEFINE TERMINAL option menu is entered,the menu prompts the user to enter a valid terminal type, and the menu is redis-played until either a valid type is entered or the user exits the DEFINE TERMINALoption.Resetting the Terminal: If the user enters a terminal type that is valid(according to the DEFINE TERMINAL option menu) but is not the correct type for theASCII terminal being used, you may have difficulty reading the screen, using thefunction keys or the Enter key. These difficulties can be bypassed by pressing Ctrl-Cto reset the terminal. The screen display that results from resetting the terminalvaries with the mode in which the system is running: Online Normal or Maintenance Mode - The command prompt appears. Standalone Mode or Online Service Mode -The terminal type is reset to "dumb",the Diagnostic Operating Instruction panel is displayed, and the user is requiredto go through the DEFINE TERMINAL process again.Running Standalone DiagnosticsConsider the following when you run Standalone Diagnostics: The diagnostic disc must remain in the CD-ROM drive for the entire time thatdiagnostics are executing. The diagnostic CD-ROM cannot be ejected from the CD-ROM drive once thediagnostics have loaded. The disc can only be ejected after the system hasbeen turned off and then turned on (standalone mode) or after the diagnosticsprogram has terminated (Online concurrent mode). The CD-ROM drive from which diagnostics were loaded cannot be tested. The SCSI adapter (or circuitry) controlling the CD-ROM drive from which diag-nostics were loaded cannot be tested.Running Online DiagnosticsConsider the following when you run the Online Diagnostics from a server or a disk: The diagnostics cannot be loaded and run from a disk until the AIX operatingsystem has been installed and configured. After the AIX operating system hasbeen installed, all three modes of operation are available. The diagnostics cannot be loaded on a system (client) from a server if thatsystem is not set up to boot from a server over a network. When the system is6-2 RS/6000 Enterprise Server Model H Series User's Guide