KDFS002W DATASET I/O COLLECTION VERSION [version_number ] INITIALIZATION UNSUCCESSFUL.
Explanation
An attempt to initialize the data set I/O collector version_number was not successful.
System action
The data set I/O collector terminates. Data set I/O data is not available.
User response
There should be a message issued prior to this. Follow the instructions for the previous message. The destination is the MVS™ system console.