MPCACT start option

Specifies whether activations of MPC subchannel groups are to be suspended if the minimum number of read and write subchannels is not available, either because they are offline or because no valid path exists to the connecting host. VTAM® automatically resumes activation when the minimum number of subchannels becomes available. At least one read device and one write device are needed to activate an MPC group.

MPCACT=WAIT

Specifies that VTAM is to suspend activations of MPC subchannel groups if the minimum number of read and write subchannels is not available, either because they are offline or because no valid path exists to the connecting host. VTAM automatically resumes activation when the minimum number of subchannels becomes available.

MPCACT=NOWAIT

Specifies that VTAM is to fail activations of MPC subchannel groups if the minimum number of read and write subchannels is not available. The system operator must manually try these activations again after the minimum number of subchannels becomes available.