David Kallman asks about a missing message in the catalog:

>MISSING MSG. SET=1. MESSAGE=417 PARM(S)= 8;;;;
>GENMSG CALLER    STATUS:  %101000 DELTA-P:  %177777 GENMSG CALLER+1  STATUS:
>%140023 DELTA-P:  %040000

There were some enhancements made to the tape drivers around the 5.5 timeframe
to report additional status. Dumping SYMOS indicates:

TP_CLEANING_REQUIRED                    CONST   INTEGER      #415
TP_RAW_RETRY_LIMIT                      CONST   INTEGER      #416
TP_ECC3_RETRY_LIMIT                     CONST   INTEGER      #417

So, in this case, it looks like the error correcting retry limit was exceeded
for your operation.

Hope this helps.

Regards,