DFS1239I ERROR OCCURRED ON WRITE FOR $$IMSDIR

Explanation
During termination processing of the MFS Language utility, an error occurred
when attempting to WRITE and STOW the final version of the INDEX directory
into the active format library.

System action
Processing continues with the next statement.

Programmer response
After determining the cause of the I/O error, correct it, and resubmit
the job.