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To load the OpenVMS idle loop detection software, use:
$ CHARONCP SET IDLE /ENABLE |
This allows CHARON to detect when the emulated CPU(s) are idle and use the host power saving instructions to reduce power usage.
To unload the OpenVMS idle loop detection software, use:
$ CHARONCP SET IDLE /DISABLE |
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Adjusting emulator's speed
CHARON speed can be adjusted using these commands.
To increase the emulator speed by the specified number of steps, use:
$ CHARONCP SET SPEED /UP=<number of steps> |
To decrease the emulator speed by the specified number of steps, use:
$ CHARONCP SET SPEED /DOWN=<number of steps> |
To remove all speed stepping restraints, use:
$ CHARONCP SET SPEED /RESET |
Emulator's shutdown control
It is possible to schedule CHARON to shutdown directly from OpenVMS.
To specify the number of seconds before the CHARON emulator is to shut down, use:
$ CHARONCP SET SHUTDOWN /IN=<seconds, 60 is default> |
The value can be between 0 and 65535 (approx. 18 hours).
To clear a scheduled shutdown, use:
$ CHARONCP SET SHUTDOWN /RESET |
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Virtual tapes management
Specify mapping to tape container in the following way in the CHARON configuration file:
set <adapter name> container[<unit name>] = ".vtape" removable[<unit name>] = true |
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Example:
set PKA container[600] = ".vtape" removable[600] = true |
Once it is done using the following commands it is possible to manage virtual tapes attached to CHARON.
To create the specified host-file (if it does not already exist) and attach it to the specified virtual tape device, use:
$ CHARONCP SET MAGTAPE <device> /LOAD="<filename>.vtape" |
The container name specified in the /LOAD parameter must not be more than 255 characters
Example:
$ CHARONCP SET MAGTAPE MKA600: /LOAD="E:\Charon\Tapes\backup_01.vtape" |
To detach any file currently attached to the specified virtual tape device, use:
$ CHARONCP SET MAGTAPE <device> /UNLOAD |
Example:
$ CHARONCP SET MAGTAPE MKA600: /UNLOAD |
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| Possible error | Description |
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| BADFILENAME | The filename specified as a value to the qualifier /LOAD was either too long or does not have a file extension of ".vtape". |
| DEVNOTDISM | Attempting to execute a SET MAGTAPE/LOAD when a file is already attached. Perform a SET MAGTAPE/UNLOAD first. If a SET MAGTAPE/LOAD command has not previously been executed, then the CHARON configuration container specification for the tape device may contain a full path. Doing this will create and attach and initial tape container file. To avoid this, remove the file name from the specification (leaving only a file extension of ".vtape" and optional directory). |
If some tape container has been already specified in the CHARON configuration file use the command "CHARONCP SET MAGTAPE <device> /UNLOAD" to unload it first.
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Defining keys
It is possible to define certain keys on the terminal keyboard for fast access to the CHARONCP functionality while you are in CHARONCP.
To define an equivalence string and a set of attributes with a key on the terminal keyboard, use:
$ CHARONCPCHARONCP> DEFINE /KEY <key-name> <equivalence-string> |
You can have a set of keys defined automatically for use with the CHARONCP utility by placing DEFINE/KEY commands in the file SYS$LOGIN:CHARONCP_KEYDEFS.INI
Example:
$ CHARONCP |
To display key definitions created with the DEFINE/KEY command, use:
$ CHARONCPCHARONCP> SHOW KEY <key-name> |
Refer to the DCL help entry for SHOW KEY for further information.
Example:
$ CHARONCPCHARONCP> SHOW KEY F1 F1 = "set magtape mka600: /unload"CHARONCP> |
For more information refer to the OpenVMS DCL Dictionary (DEFINE/KEY section).
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Displaying version
To display the CHARONCP package version number and architecture, use:
$ CHARONCP SHOW VERSION |
This can be useful for customers reporting issues with the CHARONCP software.
Example:
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