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Notepad will be used to edit the configuration file:
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HP Alpha model specification
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If you create the CHARON VM configuration file from scratch, it must be the very first uncommented line in the configuration file.
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Configuration name
The next configuration statement is the "Configuration name" option:
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The configuration name is reported in the log file and is used to set the log file name for rotating log (see further: Rotating log (default) ).
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Log file parameters
The execution of a CHARON VM creates one log file or a set of log files reflecting the progress of its start-up and ongoing operations: start and end time of execution, system information, license and configuration details, warnings, reports on problems that may occur, etc. In case of problems with either the running CHARON VM or the emulated system configuration (such as the absence or malfunction of certain devices), the log file is the primary source to be analyzed for troubleshooting.
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CPU affinity
This setting binds the running CHARON VM CPUs to particular host CPUs.This should be used for soft partitioning host CPU resources or for isolating multiple CHARON VMs on the same host from each other. By default the emulator instance allocates as many host CPUs as possible.
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Note that the number of the specified host CPUs must correspond to the number of the emulated CPUs (one host CPU for one emulated CPU; this value is specific for each HP Alpha model) and number of CPUs needed for CHARON application itself ("n_of_io_cpus").
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Number of host CPUs dedicated to CHARON I/O
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Note that the number of the specified CPUs dedicated to CHARON VM I/O operations must correspond to the total number of available for CHARON CPUs (restricted by "affinity" parameter if needed) and the number of the virtual HP Alpha CPUs to be emulated.
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Setting a specific HP Alpha model
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The full description of the parameters and other models that can be also configured is available in the "Configuration details" chapter of this User's Guide.
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Reducing number of emulated CPUs
If the CHARON host does not contain enough CPUs to emulate full range of the CPUs provided by a certain HP Alpha model, it is possible to direct the CHARON VM to reduce the number of emulated Alpha CPUs:
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Setting system serial number
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TOY and ROM containers
The TOY and ROM containers have to be configured. Their presence depends on the HP Alpha model. It is always recommended to enable them. If a container file of the given name does not exist, starting the CHARON VM will create it.
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Emulated memory (RAM) size
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Note that in some particular orders your license may restrict the maximum RAM amount of each HP Alpha model.
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Console
Mapping to system resources
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This line allows the CHARON VM to be stopped by pressing the "F6" key.
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Improve granularity of emulated timer
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Do not uncomment this parameter unless there are some problems with the system time or the system clock intervals in the guest OS.
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ATAPI CD/DVD-ROM configuration
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Networking
CHARON-AXP supports DE435, DE450, DE500AA, DE500BA, DE602 and DE602AA virtual network adapters.
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Follow this link for more details of CHARON-AXP network controllers configuration.
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Disk/tape subsystem
The disk and tapes subsystems and the mapping to the system resources can be done using the samples given in the template configuration files.
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Follow this link for details on the KZPBA controllers configuration.
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KGPSA-CA PCI FC disk controller
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They can be configured in 3 modes:
- Direct mapping to the host resources
- Usage of "presentation mode" of connected or external storage controllers
- Pass Through mode
Below is an example of a KGPSA-CA controller loading:
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Follow this link for details on the KGPSA-CA controllers configuration.
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KGPSA-CA mapping to the host resources
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The numbers in the square brackets represent the KGPSA-CA units. They can be in the range of 0 to 32766 but no more than 255 units can be configured on a single controller.
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KGPSA-CA mapping to a storage controller using its "presentation" mode
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| Type of mapping | Description |
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| storage_controller_path_id = <Storage controller path ID> | "Storage controller path ID" is a storage (for example SAN) controller path ID. This ID can be obtained from the special utility "Device check tool" (accessible in the "Host Information and Utilities" section of the CHARON Virtual Machines Manager). Once specified, all the disks attached to the storage are automatically mapped as disk units to the CHARON VM. |
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KGPSA-CA pass through mode
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| Supported | Not Supported | Not tested |
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LP8000 | LPe1150 (FC2142SR, A8002A) | LPe11000 |
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FDDI support via DEFPA PCI FDDI controller in "pass through" mode
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Non-US-EN installations of Windows may present “Location:” string in local language, but "host_bus_location" parameter requires English notation, so the words “PCI”, “bus”, “device”, and “function” must be specified in English.
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Serial lines support via emulated PBXDA-xx family PCI controllers in "pass through" mode
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Non-US-EN installations of Windows may present “Location:” string in local language, but "host_bus_location" parameter requires English notation, so the words “PCI”, “bus”, “device”, and “function” must be specified in English.
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Auto boot
The CHARON VM can be configured to automatically boot an operating system at start up by specifying the default boot device and setting the 'auto_action' parameter to 'restart' from the console.
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