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The Java Service Manager can run on a separate machine to the JSM Client.

When you select the option to start the Java Service Manager, you will be prompted to enter the following:

INSTANCE

The instance defaults to a value of *DEFAULT. This is the recommended value. The default instance is defined in the JSMMGRDTA data area at position 1 to 50.

VERSION

The JVM Version defaults to a value of *DEFAULT. This is the recommended value. Valid values are based on the currently supported versions of the JVM.

OPTION

The option defaults to a value of *NONE. Valid values include *VERBOSE, *VERBOSEGC, *NOCLASSGC.

For more information about the OPTION keyword refer to the i5/OS JAVA (Run Java Program) command.

GCHINL

Initial heap size.

The possible value range is 256-240000000 kilobytes.

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For more information about the GCHINL keyword refer to the i5/OS JAVA (Run Java Program) command.

GCHMAX

Maximum heap size.

The possible value range is 256-240000000 kilobytes.

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32bit  JVM's are limited to 3407872 kilobytes:         STRJSM

     STRJSM VERSION(*JVM8032) GCHMAX(3407872)

64bit  JVM's are limited to 239861760 kilobytes:         STRJSM

     STRJSM VERSION(*JVM8064) GCHMAX(239861760)

If you are using the shared classes option (-Xshareclasses), then the maximum GCHMAX value will be less.

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Refer to Best Practices for Sizing and Tuning the Java Heap.

JOB

Name of submitted instance job.

COUNT

The number of times the instance is submitted.

Refer to 2.7 Java Service Manager Additional Servers.