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 SQL Server Administration (2008)
 High Fragmentation Indexes
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MikeZ
Starting Member

6 Posts

Posted - 07/10/2014 :  21:34:21  Show Profile  Reply with Quote
Hi All,

At the moment I am tuning the indexes with high fragmentation ..I created a maintenance plan for rebuild /reorganize ( set the logic for fragmentation above 50% then I will do rebuild , otherwise I will reorganize ... fill factor = 80 . I also filtered by the number of page count.
noticed there is 1 index which is fragmented very quickly starting from 2 am until 7 am .
I did rebuild / reorganize every 2 am ( after log backup at 12 am)
I believe after rebuild it will become 0% but after 3 hours it will become 80% I guess...

I check the unused index data ( using the script ) and for that index i got this data :

User_Seek : 0
User_Scans : 16
User_lookup : 0
User_updates : 1.128.932

I wonder that I should just drop this index or keep maintain it with rebuild it AGAIN after a few hours later ...

Please kindly advice...thanks heaps

Cheers,
Me

tkizer
Almighty SQL Goddess

USA
37458 Posts

Posted - 07/11/2014 :  12:06:17  Show Profile  Visit tkizer's Homepage  Reply with Quote
Is the fragmentation causing performance issues? If it isn't, and it likely isn't, then just reorg/rebuild it as per your normal index maintenance schedule.

How many rows are in this table? How many pages are in the index?

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/
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