Important Installation and Configuration Notes

Adding or Moving Hardware After Installation

The process of running swinstall to install the ACC product creates the loopback configuration file /opt/acc/cfg/loopback.answ, based on the location of the ACC card(s). Adding or moving ACC cards after software installation will affect the correctness of ttgen configuration files. Refer to “Loopback Configuration File” for more details.

If any ACC Mux cards are added or moved within the system, you should create a new loopback ttgen configuration file as described in the section “Installation Verification”. This file can then be used as a template for updating the mux statements in other ttgen files.

Once a ttgen configuration file is modified, then ttgen must be run on that file and zmon must be restarted with the new .tmem file. (See “Creating a ttgen Configuration File” in Chapter 3 “Protocol Configuration” for more information.)

A device file is needed to access a ACC Mux card. During system startup, zmon verifies every hardware slot specified in the ttgen configuration file. If a valid ACC Mux card is found, zmon automatically re-creates the ACC Mux device file for that hardware location. Re-creation of device files is necessary because the HP-UX kernel may assign a different device major number to the ACC subsystem during system bootup. Hence, existing ACC device files may become invalid after system reboot.

Relocating EISA Mux Cards

	NOTE: When an EISA ACC multiplexer card has been installed and is subsequently removed for re-installation into a different slot, the eisa_config program will prompt with the following message after the system reboots:

eisa_config running in automatic mode to fix a configuration mismatch
 
     Date: 02/12/96   09:50:40
 
     One or more of the EISA boards that are listed in the configuration
     are no longer responding. There are two possible causes:
 
          (1) The board has been removed.
 
          (2) The board is no longer responding because of a hardware 
              problem.
 
     The board(s) listed below are not responding:
 
     Slot <n>
 
     eisa_config finished

Use the eisa_config program to correct this problem:

$ eisa_config

EISA: remove <n>

EISA: s

EISA: q

You must type “s” next, to save the change to the configuration.

	NOTE: Before attempting to start up the ACC subsystem, you must first modify the TTGEN .answ file and run TTGEN to create a .tmem file.

Kernel Configuration

If the error message ENOSPC is encountered during download of the ZCOM Subsystem, it may be due to an insufficient value in configurable parameter semmnu. To increase the value of this parameter:

When you exit SAM, you will be prompted to regenerate and reboot the system.