CFDTWAIT

 If you have a task waiting on resource type CFDTWAIT, the task is waiting on the coupling facility data table server for a file control request to complete. Requests to the CFDT server are normally processed synchronously. Therefore, this wait could indicate that:

  • There is a high level of activity to the CFDT server

  • The server is processing a request for a record that is longer than 4K bytes

  • The task has issued a request for a record that is currently locked by another task within the sysplex.

Waiting on this resource can occur only for a file defined to access a coupling facility data table.