Preparing the System Hardware

Preparing the System Hardware

On IRIS-4D and POWER Series systems, multiprocessor debugging requires that you connect an ASCII terminal to each processor. On a two-processor system, the second terminal connects to Serial Port 3. For four-processor systems, the additional terminals connect to ports 5 and 7. Additionally, you must set the MODE switches 4 and 8 (located at the front of the 4D system panel) to "open." When these MODE switches are open, power-on diagnostics display on the terminal attached to each processor. symmon loads automatically on all non-console processors, and each prints a message to its terminal. The mode switches are depicted in Table 10-1.

Note: Indigo, Indigo2, Indy, Crimson, CHALLENGE/Onyx, POWER CHALLENGE/POWER Onyx systems do not require physical manipulation of MODE switches.