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Splitting TempDB

Posted on 2011-02-20
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Last Modified: 2012-05-11
http://msdn.microsoft.com/en-us/library/ms175527.aspx

Under what sort of load/traffic would you look at splitting tempDB?
This isn't something I've ever done or heard of but someone has come to me and asked if this would be a good idea for their new setup
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Question by:QPR
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Anthony Perkins earned 500 total points
ID: 34939296
This is pretty common practice.  Basically the idea is that you split your TempDB across multiple drives in order to improve performance.

A word of caution, as I am sure it may come up here.  There is an urban legend that you should have one data file per processor.  See here:
Myth #12: tempdb should always have one data file per processor core.
http://www.sqlskills.com/BLOGS/PAUL/post/A-SQL-Server-DBA-myth-a-day-(1230)-tempdb-should-always-have-one-data-file-per-processor-core.aspx
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by:Anthony Perkins
ID: 34939334
Actually on re-reading that article, apparently it is not necessary to use different drives, just the that you have multiple data files.
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by:QPR
ID: 34939420
Possibly a "how long is a piece of string" question... but at what point would this become an advantage. The answer is probably "when performance is an issue" but this is a server hosting a single backend for approx 30 users (decent hardware and local network only). It has had issues in the past but that was down to poor application development and we are assured that these issues have been addressed in the new version.
Just trying to see if there is any point to me doing this or whether the person asking about it has just had a read
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by:Anthony Perkins
ID: 34939699
If you read the article, you will see when it is advised to do this.
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by:QPR
ID: 34939732
Ah so it does, I didn't read that url as I thought you were pointing to it as an example of bad info, now I realise it was an article pointing out the bad info :)
Thanks got the info I need now
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