MUDWNGRDTN, Transaction number 0xaaa in database xxx is too big for MUPIP [REORG] DOWNGRADE. Renew database with MUPIP INTEG TN_RESET
MUPIP Error: A MUPIP DOWNGRADE or MUPIP REORG DOWNGRADE was attempted when the database transaction number was greater than 4,026,531,839 (the TN_RESET warning limit for V4 databases).
Action: Before the database can be downgraded, the transaction number must be reset with the MUPIP INTEG TN_RESET command. This requires standalone access to the database and may take a significant amount of time.