Does anyone experience this? SQL 2012 DBCC CHECKDB runs very slow on one of the server. I monitored the server and it seems DBCC CHECKDB does not hit the disk hard enough. It can read 100 mb per second on of my slower server, but on this particular server, it only read 1 mb per second. I saw parallel processes, but it just not read disk hard enough. I am curious what causes this? There is no user using the server when I run DBCC command. The full database restore took 3 hours, but DBCC CHECKDB took more than 11 hours. Thanks for any input.
Lijun