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DCMT VARY PTERM

DCMT VARY PTERM changes physical terminal attributes and also initiates and controls physical I/O tracing. With physical I/O tracing in effect, DC/UCF can be directed to take a snap dump of specified memory areas (for example, the physical terminal element) associated with a physical terminal upon completion of successful, unsuccessful, or all I/O operations. The snap dumps are written to the DC/UCF log.

Important! Do not use DCMT VARY PTERM OFFLINE for terminals defined with a line type of VTAMLU. Using this command can cause SNA session protocols to be canceled. Use DCMT VARY LU to put SNA sessions out of service.