Display detailed information of a particular virtual machine:

# ./ovm_vmcontrol -u admin -p password -h localhost -v MyVM02 -c info
Oracle VM VM Control utility 0.5.2.
Connected.
Command : info
Virtual Machine : MyVM02
        Status : Running
        Memory : 1024
        Uptime : 83 Minutes
        Server : OVS_01
        Pool   : MyServerPool1
        HA Mode: false
        VCPU   : 2
        Type   : Xen HVM
        OS     : Oracle Linux 6
vminfo 'MyVM02' completed.

Check the status of a particular virtual machine:

# ./ovm_vmcontrol -u admin -p password -h localhost -v MyVM02 -c status 
Oracle VM VM Control utility 0.5.2. 
Connected. 
Command : status 
Virtual Machine : 'MyVM02' status : 'Running' on server 'OVS_01' serverpool : 'MyServerPool1'.

Stop a particular virtual machine:

# ./ovm_vmcontrol -u admin -p password -h localhost -v MyVM01 -c stop 
Oracle VM VM Control utility 0.5.2. 
Connected. 
Command : stop 
stopvm 'MyVM01' completed. 

Start a particular virtual machine:

# ./ovm_vmcontrol -u admin -p password -h localhost -v MyVM01 -c start 
Oracle VM VM Control utility 0.5.2.
Connected. 
Command : start 
startvm 'MyVM01' completed.

Lock a particular virtual machine:

# ./ovm_vmcontrol -u admin -p password -h localhost -v MyVM01 -c lock 
Oracle VM VM Control utility 0.5.2. 
Connected. 
Command : lock 
Locking VM 'MyVM01' 
Press Ctrl-C to unlock. 

The lock command will sleep until you press Ctrl+C to release the lock. If the ovm_control utility is killed, the VM would be unlocked as well.