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'
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
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.