DFS3439W I/O ERROR READING THE DIRECTORY FOR ddname {-nnn}

Explanation

An I/O error occurred while reading the data set, indicated by ddname, during processing of one of the following commands:
  • /MODIFY PREPARE
  • INITIATE OLC PHASE(PREPARE)
  • /MODIFY COMMIT
  • INITIATE OLC PHASE(COMMIT)

If the error occurred on a FORMAT library that has concatenated data sets, nnn indicates on which of the concatenated data sets the error was received.

System action

The command is ignored.

Programmer response

If the I/O error occurred on a data set currently in use by the online IMS system, that system might shortly encounter a similar condition. If the error occurred for an inactive data set, you should recreate that data set.