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Why are there so many files in SQL Server?
Likewise, if too many files are used within a FILEGROUP, write operations can actually be degraded in some extreme cases due to the fact that SQL Server has to ‘round-robin’ through multiple files in order to proportionally fill those files with added data.
What causes DBCC checkdb to run faster than SQL Server?
Causes DBCC CHECKDB to obtain locks instead of using an internal database snapshot. This includes a short-term exclusive (X) lock on the database. TABLOCK will cause DBCC CHECKDB to run faster on a database under heavy load, but decreases the concurrency available on the database while DBCC CHECKDB is running.
What to do when adding multiple files to SQL Server?
Consequently, to correctly gauge the impact of adding in multiple FILEGROUPs and files, you’ll need to run SQL Server Profiler, make sure to adequately clear your buffers, and run repeated tests to determine if the overall duration of your queries is being decreased.
What does backup with checksum do in SQL Server?
The Backup WITH CHECKSUM option was introduced with SQL Server 2005 and offers some protection that occurs along with your regular backup routine. Although the “Backup WITH CHECKSUM” option will cause all existing page checksums on allocated pages to be checked, there may be some database corruption that will not be detected.
How to consolidate multiple databases in SQL Server?
This article mainly focuses on the consolidation type of hosting multiple databases on a single, highly available SQL Server instance and suggests a methodology of assessing the candidate databases. Some of the principles described in the article can also be used when consolidating SQL Server instances as well.
What should I look for when consolidating SQL Server?
Your primary goal must be, after consolidating SQL Server databases and instances, to have at least the same level of performance, security and stability as before, if not more. To this end, prior to consolidating a database or a full instance, you need to assess it against a list of factors such as: Let’s see the above factors in more detail.