Extent Fragmentation on indexes

KYDutchie
Member Posts: 345
Hi all,
I have a question on the extent fragmentation. How can I get the percentage of extent fragmentation down?
For example I have an Index on the G/L Entry table ($4) , logical fragmentation 0%, Extent fragmentation 27.27%.
When I do a rebuild on the index the number remains the same. So I tried to drop the index and create it again. Then the fragmentation goes up to 56%.
But when I do rebuild it again, the fragmentation goes back to 27.27%
How severely does the extent fragmentation influence performance?
Thanks in advance for any suggestions,
Regards,
Willy
Willy
I have a question on the extent fragmentation. How can I get the percentage of extent fragmentation down?
For example I have an Index on the G/L Entry table ($4) , logical fragmentation 0%, Extent fragmentation 27.27%.
When I do a rebuild on the index the number remains the same. So I tried to drop the index and create it again. Then the fragmentation goes up to 56%.
But when I do rebuild it again, the fragmentation goes back to 27.27%
How severely does the extent fragmentation influence performance?
Thanks in advance for any suggestions,
Regards,
Willy
Willy
Fostering a homeless, abused child is the hardest yet most rewarding thing I have ever done.
0
Answers
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I did some duckbingling and found these links:
https://decipherinfosys.wordpress.com/2008/06/10/dbcc-showcontig-and-extent-scan-fragmentation/
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/83848ef3-47f6-41bb-a068-d03c0527a82e/dbcc-showcontig-vs-dmdbphysicalindexstats-extent-fragmentation?forum=sqldatabaseengine
https://sqlblogging.wordpress.com/tag/extent-fragmentation/
In short : nothing to worry about.Regards,Alain Krikilion
No PM,please use the forum. || May the <SOLVED>-attribute be in your title!0 -
Thanks Kriki!
Regards,
WillyFostering a homeless, abused child is the hardest yet most rewarding thing I have ever done.0
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