DFS2147I ACB CLOSE PENDING ON MASTER TERMINALS.

Explanation
 A /STOP DC command was entered,
but cannot complete until the VTAM® ACB is closed. The ACB cannot
be closed until all VTAM node sessions have terminated.
This message is issued to inform the operator that the only remaining
active nodes are the master or secondary master terminals, or both.

Operator response
 Issue a /CLSDST NODE or /IDLE
NODE command to close the nodes. This allows the VTAM ACB
to close and /STOP DC processing to complete. Message
DFS2111I will indicate a successful VTAM ACB
close.