Configuration Parameters 

Use

The following parameters are used to set the basic properties of the VM Container:

●     Activation of the VM Container: vmcj/enable

●     Maximum and minimum number of VMs: rdisp/max_jvm, rdisp/min_jvm

●     Activation/deactivation of VM cloning: vmcj/cloning

●     Maximum number of VMC subrecords in each statistical main record: stat/vmcrec

Integration

For more information about other parameters, see Memory Parameters.

Features

The profile parameters are described below. You can change the values by changing the profile and restarting the VM Container (see VM Overview).

SAP recommends that you do not change the standard settings. They are set for normal operation of the VM Container.

vmcj/enable

Specifies if the VM Container is activated. Possible values:

ON: Activates the VMC.

OFF: Deactivates the VMC.

ENABLE: Initializes the VMC, but does not activate it. You can then activate the VMC dynamically in the VM Overview (transaction SM52).

Default value: OFF.

rdisp/max_jvm

Determines the maximum number of Java VMs that were created for HTTP (Web) and RFC/RMI (REM) processing. If needed, new VMs can be created up to this maximum value.

Possible values:

WEB=[DEFAULT | 0-n ], REM=[DEFAULT | 0-m]

The effect of the special value DEFAULT is to make the maximum number of VMs of each type is dependent on the number of configured work processes (is double the number of work processes).

Default value: WEB=DEFAULT, REM=DEFAULT

rdisp/min_jvm

Determines the minimum number of Java VMs created for HTTP (Web) and RFC/RMI (REM) processing.

Possible values:

WEB=[0-n ], REM=[0-m]

Default value: WEB=1, REM=1

vmcj/cloning

Activates the VM cloning (provided all prerequisites are fulfilled). The prerequisite for VM cloning is the implementation of extended memory mapping (see parameter em2/implementation under Memory Parameters).

ON: Activates the VM cloning.

OFF: Deactivates the VM cloning.

Possible values: [ON | OFF]

Default value: ON

stat/vmcrec

This parameter affects the VMC statistics within the SAP statistics. It specifies how many VMC sub-records can be contained within one statistic record.

Possible values: whole numbers

Default value: 10