DSNJ115I OFFLOAD FAILED, COULD NOT ALLOCATE AN ARCHIVE DATA SET

Explanation
  Offload could not allocate or open an archive
log data set. The offload was not performed. If this message is preceded
by message DSNJ103I, the offload data set could not be allocated.
If this message is not preceded by DSNJ103I, the offload data set
was successfully allocated, but could not be opened.

System action
  Offload will be tried at a later time.

Operator response
  Notify the system programmer.

System programmer response
  If the allocation failed with DSNJ103I,
review the error status information of message DSNJ103I. Correct the
condition that caused the data set allocation to fail so that, on
retry, the offload can take place.