Definition of 0P20


Cause: Unit check (sense operation or attempting to reposition a tape or MFCM or MFCU).
Error occurs during device error recovery. If this message occurs during tape error recovery,
the status and sense information reflect the error that caused the tape error recovery procedure
to be invoked, not the error that caused the program to cancel.
This is probably a hardware error.
Programmer Action: none.
Operator Action: See Figure 4 at the beginning of this section. If possible, use another
device if the job is to be rerun.
If the problem persists, issue the ROD command and execute EREP (see DOS/VS SADP), and
have the
· output
· log sheet
available for problem determination.

Used with Courtesy and Permission of International Business Machines, Inc.