SQL server tempdb database

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
polycorjspAsked:
Who is Participating?
 
Aneesh RetnakaranDatabase AdministratorCommented:
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
 
Aneesh RetnakaranDatabase AdministratorCommented:
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
 
polycorjspAuthor Commented:
How do I creat those files?
0
 
Anthony PerkinsCommented:
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
 
polycorjspAuthor Commented:
Sorry for the delay.  I will test that soon

Thanks!
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.