DBMAXREC2BIG, Maximum record size (xxx) is too large for this block size (yyy) - Maximum is zzz
DBCERTIFY/MUPIP Error: DBCERTIFY and MUPIP UPGRADE report this error when the maximum record size is too close to the database blocksize and does not allow room for the expanded V5 block header.
Action: Reduce the maximum record size or mupip extract/load into a database with a larger blocksize. Note that if the maximum record size is reduced with DSE, it is possible that records that exceed the reduced size still exist in the database which is now an integrity error. DBCERTIFY SCAN will find these blocks and report on them if they exist.