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VLF

October 23, 2012

Worth considering for performance (will impact mirroring) : shrink tlog to reduce number of virtual log files (VLF)

Doesn’t take much to do and is one off, but you have to do it at a quiet time to get best effect

Reckon around 50 to be a good number

http://sqlblog.com/blogs/linchi_shea/archive/2009/02/09/performance-impact-a-large-number-of-virtual-log-files-part-i.aspx

http://www.karaszi.com/SQLServer/info_dont_shrink.asp

 

NB dont run dbcc loginfo on a snapshot in SQL 2005!

http://connect.microsoft.com/SQLServer/feedback/details/292136/running-dbcc-loginfo-on-db-snapshot

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