IST574E
START I/O TIMEOUT OCCURRED FOR linkname

Explanation

This host has initiated an I/O operation. An interrupt has not been received in the time specified for that I/O operation. linkname is the name of a communication link.

System action

Processing continues.

Note: If the other host does not respond in roughly 3 minutes from the time that this message appears, request units (RUs) will be lost. If MIH=YES was specified on the LINE or GROUP definition statement, RUs will be lost and the PU will become inoperative at the end of 3 minutes. The interrupt interval can be modified using the MIHTMOUT start option. Evaluate the setting of the REPLYTO operand. See the z/OS Communications Server: SNA Resource Definition Reference for more information.

Operator response

  • If the other host has failed, the operator might want to deactivate the link linkname since it cannot be used.
  • If the other host has temporarily stopped, normal operation will resume when the operator starts the system again.

Otherwise, no action is required.

System programmer response

None.

Routing code

2

Descriptor code

3