0P27 UNKNOWN DEVICE
Cause: Unit check. Error recovery attempted on unsupported device. This message may also
appear after a BTAM job is canceled.
Programmer Action: Use the user exit options in LIOCS and PIOCS to accept errors on
If the problem recurs. obtain a system dump and have the
· job stream
· log sheet
· program listing
available for problem determination.
Operator Action: See Figure 4 at the beginning of this section.
Used with Courtesy and Permission of International Business Machines, Inc.