Use the information in these messages to help you diagnose and solve IMS High Performance Unload problems.

Message format

IMS High Performance Unload messages adhere to the following format:



Indicates that the message was issued by IMS High Performance Unload.
Indicates that the message was issued by the Sequential Subset Randomizer utility of IMS High Performance Unload.
Indicates the message identification number.
Indicates the severity of the message:
Indicates that an error occurred, which might or might not require operator intervention.
Indicates that the message is informational only.
Indicates that the message is a warning to alert you to a possible error condition.
Each message also includes the following information:
The Explanation section explains what the message text means, why it occurred, and what its variables represent.
System action:
The System action section explains what the system will do in response to the event that triggered this message.
User response:
The User response section describes whether a response is necessary, what the appropriate response is, and how the response will affect the system or program.

Message variables

In the message text, you will see lowercase variable names (such as xxx...). The variable names take on values when the message appears and represent such things as:

  • The name of a data set
  • A DD name
  • A DBD name
  • A status code
  • A command keyword
  • A name or value provided by the user
  • Text generated by HSSR Engine when an I/O error has occurred

The keyword HSSR in message texts and in the explanation, system action, and user response represents the HSSR Engine unless otherwise stated.