This solution handles situations in which an attempt to allocate a device fails. A message sent to the console asks for the operator’s instructions – whether to allocate a different device, cancel the job, or wait until the device becomes available. The WAIT option appears only if MVS determines that it is reasonable to wait for the device.
When a message’s text indicates that the WAIT option is valid, this solution instructs MVS to WAIT. When MVS issues a message asking the operator whether to hold the units already allocated to the waiting job, this solution instructs MVS not to hold the units (that is, replies NOHOLD).
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