Moving System Files

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January 25, 2010 by Mike Hillwig

Having built one database server in my new environment, the second one is an awful lot easier.

The following six lines of code saved me a ton of time this morning.

ALTER DATABASE [tempdb] MODIFY FILE (name = tempdev, FILENAME = ‘D:\TempDB\tempdb.mdf’)
ALTER DATABASE [tempdb] MODIFY FILE (name = templog,
FILENAME = ‘D:\TempDB\templog.ldf’)
ALTER DATABASE [msdb] MODIFY FILE ( NAME = msdbdata , FILENAME = ‘G:\system\MSDBData.mdf’ )
ALTER DATABASE [msdb] MODIFY FILE ( NAME = msdblog , FILENAME = ‘e:\system\MSDBLog.ldf’ )
ALTER DATABASE [model] MODIFY FILE ( NAME = modeldev , FILENAME = ‘G:\system\model.mdf’ )
ALTER DATABASE [model] MODIFY FILE ( NAME = modellog , FILENAME = ‘e:\system\modellog.ldf’ )

I just can’t explain how big of a deal this is to me. In my current envrionment, every server was set up with a single C: drive. Some of these file systems are over a terabyte. Now we’re breaking things up, and I can only imagine the performance boost we’re going to see.