VAM0007 Allocate ALREADY INSTALLED VAM Task can not be started after it is CANCELed (S222) or abends

Products

• Allocate DASD Space and Placement

Issue/Introduction

After VAM is CANCELed by the operator or abends, trying to restart VAM fails and displays message: 
 
VAM0007 Allocate ALREADY INSTALLED
 
It has also been reported that this message is displayed:
CAHC101I Function: TERMINATE        Return Code: x'00000008' Reason Code: x'00000004'

 

Resolution

If the VAM task is no longer running, then enter this command which will remove
all hooks that are still installed which is what is preventing a normal Start:
 
S VAM,PARM=CLEANUP
 
When all the hooks are removed, then these messages are displayed and the task ends:
VAM0046 CA Allocate SHOULD INSTALL NOW 
VAM0368 CLEANUP *** COMPLETED ***      
 
Now you can enter the normal Start command:  S VAM
 

Additional Information

If you had received the CAHC101I message (along with the VAM0007 msg),
then when VAM has been started normally, the CAHC101I message can just be ignored.