[Company Logo Image] 

Home Up Contents Coffee Break Credits Glossary Links Search

Buffer Cache Hit Ratio Very Low



Analysis Services
CLR Integration
High Availability
Open Source
SQL Server 2008
SQL Server 2012
SQL Server 2014
SQL Server 2016
SQL Server 2017
SQL Server 2019

Buffer Cache Hit Ratio Very Low.

Applies to: Microsoft SQL Server 2000

Problem Description.

We were seeing low readings for the buffer cache hit ratio two days in a row on a SQL Server 2000 instance. The ratio was 3.15% in average the first day.  On the second day the ratio was 33.28% in average.


We discovered that on the first day was installed the agent of a backup application software, reducing the available memory on the server. The server had only 3.24 MB of available memory (RAM) in average that day.  The second day, 37.80 MB was the average.

The cause of the low readings was insufficient RAM.


After freeing some RAM or adding more memory to your server you will see the readings back to normal.



.Send mail to webmaster@sqlcoffee.com with questions or comments about this web site.