DBCMODBLK2BIG, Block 0xaaa has been modified since DCERTIFY SCAN but is still too large or has an earlier TN than in DCERTIFY SCAN - Rerun scan
DBCERTIFY Error: DBCERTIFY reports this error when the block it is processing has a different TN than it did in the scan phase yet the block is still too large.
Action: This condition indicates that something has been done to the database since the scan phase was run - either it was restored from an earlier backup or the reserved bytes value was (even temporarily) reduced. DBCERTIFY SCAN must be rerun.