SQL 2016 – It Just Runs Faster: DBCC Scales 7x Better
SQL Server According to Bob
JUNE 3, 2016
Internally DBCC CHECK* uses a page scanning coordinator design (MultiObjectScanner.) SQL Server 2016 changes the internal design to (CheckScanner), applying no lock semantics and a design similar to those used with In-Memory Optimized (Hekaton) objects, allowing DBCC operations to scale far better than previous releases.
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