VTAM communication failure: ACB initialization error. Verify pooling options (LUPOOL, LUPREFIX, LUFIRST, LULAST) or that the target ACB is not already in use. The ...

Configure resources for the VTAM LU 0 access method by defining the server and the connecting clients in their respective domains. To configure the OS/390 system for VTAM LU 0, perform the following ...