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tempdb best practices on 24-core machine Expand / Collapse
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Posted Tuesday, January 25, 2011 8:20 AM
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Hello,

In http://www.sqlservercentral.com/articles/SQL+Server/70505/
it says, "Best practices call for tempdb to have one datafile per processor (core) and all to be of the same initial size and growth."

We are setting up a new machine to run SS 2008 R2 x64 on Windows Server 2008 x64 Standard. The machine has 24 CPU cores and 24GB of RAM. Should I really allocate 24 datafiles in my tempdb? This seems like overkill, especially since the machine is over-powered for the application and databases it is supporting. We'll likely have up to 12 concurrent users.

Which views, etc. would I monitor to decide if more datafiles would be helpful?

Advice appreciated. Thank you.
-T
Post #1053191
Posted Tuesday, January 25, 2011 8:28 AM


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Tim L-309246 (1/25/2011)
In http://www.sqlservercentral.com/articles/SQL+Server/70505/
it says, "Best practices call for tempdb to have one datafile per processor (core) and all to be of the same initial size and growth."


Not necessarily.

http://sqlskills.com/BLOGS/PAUL/post/A-SQL-Server-DBA-myth-a-day-(1230)-tempdb-should-always-have-one-data-file-per-processor-core.aspx



Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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