VMC System Administration 
Use
With the
VMC System Administration (transaction SM53) you
can monitor all the settings in the environment of the 
SAP Virtual Machine
Container (VMC) and carry out administration tasks. The
transaction is intended for use by administrators, SAP consultants, and SAP
support.
Integration
In transaction SM52 you can see an overview of all the running Java VMs in the VM Container (see VM Overview).
Prerequisites
You need authorization for the transaction. This is configured in authorization object S_VMCADMIN.
Profile S_VMCADMIN_1 gives display and change authorization. Profile S_VMCADMIN_2 only gives you display authorization.
Features
The initial screen of VMC System Administration (transaction SM53 or in the VM Overview choose Goto ® VMC Administration) looks like:
The right-hand screen provides the following information:
● Details of the application server instance you are on, such as kernel release and patch level.
● Modified Kernel Parameters: If you have changed the Configuration Parameters from the default you will see these here.
● Java System Properties: All Java system properties of the instance
● VM Build Options: Settings used to translate the Java VM
All the information relates only to the instance you are logged on
to.
If you are monitoring or want to carry out administrative tasks on a different
instance, you can get an overview in SM51 (Over of SAP
Application Servers), and navigate to the instance you want be
double-clicking on it.
When you select something in the navigation structure on the left-hand side, you can see in the right-hand area the associated information. The navigation structure contains the areas below:
● Shared closures, shared classes and shared locks are the VMC components that are located in the shared memory and can be used by all VMs. For more information, see the following sections:
...
○
Display
shared locks: You can use this display for dead lock analyzes to find out what
sort of Shared
Locks have been created.Sometimes
there may be so many of them, which could also cause problems.
● JARM is used for statistical monitoring of Java applications.
● Sessions: Here you can Display and Manage User Sessions.
● Applications: You can see details of all Java applications running on this instance.
● Under Cache Info you can configure the cache and monitor its state. For more information see Caching in the VM Container. In particular with CRM applications a lot of use is made of the cache.
● Log Administration is used for displaying and configuring the log viewer. For more information see Logging and Tracing in the VM Container.