SQL Server DBCC CHECKDB Being Run On Bootup

StackOverflow https://stackoverflow.com/questions/12289424

  •  30-06-2021
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Question

We've noticed that on bootup, there are CHECKDBs being run against all databases on the instance being restarted. At first I assumed it was standard procedure and did some research. I found a couple of posts stating that this happenswhen the server goes down without allowing the dabases to properly close.

Although that makes good sense, why are these CHECKDBs only takeing a couple of minutes to spin through? Even PHYICALONLY should take an hour or more to complete.

Was it helpful?

Solution

SQL Server is not really running a CHECKDB at startup. Michael Campbell does a good job of explaining what you're seeing: Why is SQL Server running DBCC CHECKDB against my databases at Server Startup?

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