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  • Back to Basics,  Performance Tuning

    VLFs the Forgotten Foe

    August 23, 2017 /

    How many of you check the amount of Virtual Log Files (VLFs) your transaction logs have? Working as a consultant now, I see this as something that is often ignored by DBAs.  This is an easy thing maintain and yet so many don’t know how to. Keeping these in check can give you a performance boost not only on startup but with your insert/update/delete as well as backup/restore operations. SQL Server performs better with a smaller number of right sized virtual log files.  I highly recommend you add this to your server reviews. What is a VLF? Every transaction log is composed of smaller segments called virtual log files. Every…

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    Monica Morehouse (Rathbun)

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About Me

Monica Morehouse (Rathbun)

Microsoft MVP, Performancing Tuning Expert, Leader Hampton Roads SQL Server User Group, Read More…

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Top Posts & Pages

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    Resizing Tempdb (When TEMPDB Wont Shrink)
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    Understanding Columnstore Indexes in SQL Server Part 1
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    Understanding Columnstore Indexes in SQL Server Part 2
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    SQL Sequence vs Identity Column
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    Tempdb Performance Improvements in SQL Server 2022 are Dramatic
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