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CHARON-VAX symbolic links

Use the following Each model of CHARON-VAX has a symbolic link to run different models of CHARON-VAX:defined to point to the corresponding CHARON executable (see the table below). If the PATH is correctly defined, you can start a virtual machine by specifying the link followed by the configuration file. This is described further.

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Running CHARON-VAX emulators

It is possible to run one or several instances of CHARON-VAX at the same time if your license allows it.

In case of For multiple instances, please note to use only absolute paths and unique names to all the files referenced in the configuration file of each CHARON-VAX instance (log, toy clock, nvram files and all the other data such as disk images - all these objects will be discussed explained later; at this stage just pay attention to the files specified in the configuration file) and to specify only unique for each instance hardware devices to avoid clashing. .For examplecheck the hardware devices are used by only one instance at a time (not shared).

Example:

Please refer to the next chapters for more details concerning CHARON-VAX configuration details.

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Running from the console

Copy required the selected configuration template from the "/opt/charon/cfg/" directory to some local file and set the correct privileges to that for the file to be able to edit itedited.

Example:

Now let's execute CHARON Run the virtual machine using this template configuration file:

You will see Below is an example of a normal VAX test sequence, followed by the prompt sign (">>>"):

The next stage can be either installation of a new VAX/VMS system using a distributive provided by HP or data transfer of data from some existing VAX system. These possibilities will be discussed in details in the next chapters.

If for some reason CHARON-VAX refuses to start, please look for files with .log extension (CHARON-VAX log files) located in the directory from which where CHARON-VAX startswas started, open them in some with an editing tool and analyze their content. In most cases those files contain very helpful information on what may possible went wrong.

To exit from the CHARON-VAX emulator use the following methods:

 Please note that before stopping CHARON-VAX, one must a clean shutdown of the operating system running by CHARON-VAX.

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on the virtual machine has to be performed.

Running as system service (daemon)

It is possible to run CHARON-VAX as a daemon (service). In this case the CHARON-VAX process will be detached from its parent process and from the terminal window in which it runs.

Follow the description below to establish install and run execute CHARON-VAX as a daemon:

Installation and start of CHARON-VAX service

1. Copy the sample script "/opt/charon/bin/charon.service" ( "/opt/charon/bin/charon" for Red Hat  Linux 6.x) to the "/usr/lib/systemd/system/" directory (or to your home directory (for Red Hat Enterprise Linux 6.x)), for example.

   Example:

   Red Hat Linux 6.x	$ cp /opt/charon/bin/charon /my_services/mv3k6_service $ chmod 755 /my_services/mv3k6_service
   Red Hat Linux 7.x and CentOS 7.x	$ cp /opt/charon/bin/charon.service /usr/lib/systemd/system/mv3k6.service $ chmod 755 /usr/lib/systemd/system/mv3k6.service

   
   

2. Edit the renamed file to replace sample values of the following parameters, for example.

   Example:

   Red Hat Linux 6.x	exec="/opt/charon/bin/mv3k6" prog="my_mv3k6" config="/my_services/mv3k6-service.cfg"
   Red Hat Linux 7.x and CentOS 7.x	ExecStart=/opt/charon/bin/mv3k6 -d /my_services/mv3k6-service.cfg WorkingDirectory=/my_services

    "my_mv3k6" is a service name in the example above

               

3. Create and edit the configuration file ("/my_services/mv3k6-service.cfg" in the examples above) the way it was described before and make sure that the following pre-requisites are met:

   • OPA0 must be configured as a virtual port or physical console, not as an operator console, for example.

     Example:

     load virtual_serial_line OPA0 port=10003 #load operator_console OPA0

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   • Use only absolute paths to log, toy clock, nvram files and all the other data such as disk images, etc. The names of the references files must be unique too, for example.

     Example:

     ... set session log="/my_services/my_mv3k6.log" set toy container="/my_services/my_mv3k6.dat" load RQDX3/RQDX3 DUA set DUA container[0]="/my_services/mv3k6_daemon_boot_disk.vdisk" ...

     
     

   • Make sure the same physical devices are not used by other CHARON-VAX daemon, same for daemons and the OPA0 console port number is unique across the CHARON server.
     
     

Once configuration file is ready issue , execute the following commands (based on the specifics belongs to the examples above) to install and start CHARON-VAX as a daemon:

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Stopping CHARON-VAX service

To stop a CHARON-VAX daemon, use the following command, for examplecommands.

Example:

Please note that before stopping a CHARON-VAX service, one must  a clean shutdown of the operating system running by CHARON-VAX. 

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on the virtual machine has to be performed.

Removing CHARON-VAX service

To remove a CHARON-VAX daemon use the following commands, for example.

Example:

 Please note that before removing a CHARON-VAX service one must shutdown , a clean shutdown of the operating system running by CHARON-VAX and then stop corresponding CHARON-VAX service. on the virtual machine has to be performed and the service has to be stopped.

Please refer to the next chapters for more details concerning CHARON-VAX configuration details

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