September 2010
Intermediate to advanced
1704 pages
111h 8m
English
book
Microsoft® SQL Server 2008 R2 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2008 R2 Unleashed
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SQL Server Health Checks
One of the SQL Server Support Engineers has posted blog entries on how to perform server health checks using Policy-Based Management. You can access his blog using this URL: http://blogs.msdn.com/bartd/archive/2008/09/11/defining-complex-server-health-policies-in-sql-2008.aspx.
The main part of the SQL Server health check revolves around ensuring the disk response times are less than 100ms. The Policy uses ExecuteSQL to query the dynamic management view sys.dm_io_virtual_file_stats to ensure that the disk response time is within this limit. You can extend this policy to query other DMVs for other health checks—for example, the use of excessive parallelism or checking to ensure that cumulative wait stats have not exceeded ...
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