Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

SQL server tempdb database

Posted on 2013-02-06
5
Medium Priority
?
461 Views
Last Modified: 2013-06-05
Hi!
I've search the web for explanation on how to increase the number of tempdb data files and I found nothing.  I'm using SQL 2012.  Can somebody explain me how to do that?

Thanks

JS
SQL-TempDB.PNG
0
Comment
Question by:polycorjsp
  • 2
  • 2
5 Comments
 
LVL 75

Expert Comment

by:Aneesh Retnakaran
ID: 38860081
Using multiple data files reduces tempdb storage contention and yields significantly better scalability. As a general guideline, create one data file for each CPU on the server (accounting for any affinity mask settings) and then adjust the number of files up or down as necessary. However, do not create too many files because this can reduce performance and increase management overhead.I would rather create these files on separate disks and wont go above 8 files; try adding another one or 3 files and check for the contension before going further.

Note that a dual-core CPU is considered to be two CPUs.
0
 

Author Comment

by:polycorjsp
ID: 38860090
How do I creat those files?
0
 
LVL 75

Accepted Solution

by:
Aneesh Retnakaran earned 2000 total points
ID: 38860107
you should check this

http://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-1230-tempdb-should-always-have-one-data-file-per-processor-core/

You can add them using an alter database statement

ALTER DATABASE tempdb
ADD FILE (NAME = tempdev2, FILENAME = 'F:\tempdb2.mdf', SIZE = 256);
ALTER DATABASE tempdb
ADD FILE (NAME = tempdev3, FILENAME = 'G:\tempdb3.mdf', SIZE = 256);
ALTER DATABASE tempdb
ADD FILE (NAME = tempdev4, FILENAME = 'h:\tempdb4.mdf', SIZE = 256);
GO
0
 
LVL 75

Expert Comment

by:Anthony Perkins
ID: 38863838
Aneesh,
As a general guideline, create one data file for each CPU on the server
...
http://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-1230-tempdb-should-always-have-one-data-file-per-processor-core/
The general guideline is start with 4 and then add as necessary.
0
 

Author Comment

by:polycorjsp
ID: 38939404
Sorry for the delay.  I will test that soon

Thanks!
0

Featured Post

Fill in the form and get your FREE NFR key NOW!

Veeam is happy to provide a FREE NFR server license to certified engineers, trainers, and bloggers.  It allows for the non‑production use of Veeam Agent for Microsoft Windows. This license is valid for five workstations and two servers.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
What if you have to shut down the entire Citrix infrastructure for hardware maintenance, software upgrades or "the unknown"? I developed this plan for "the unknown" and hope that it helps you as well. This article explains how to properly shut down …
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.

916 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question