How to Monitor Index Fragmentation in Spotlight on SQL Server Enterprise - PowerPoint PPT Presentation

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How to Monitor Index Fragmentation in Spotlight on SQL Server Enterprise

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Index fragmentation happens when a new record is inserted into a current database. It is like adding a new name to a phone book, there is no room and the name has to be placed out of order, or the name has to be taken out of the phone book, then there is a blank space, making the phone book longer than it needs to be. Therefore taking longer to read it, back it up, and recover it. If you do not defragment your indexes, your database has to cache all of those blank records, wasting memory. Many defragmentation scripts are set to run as part of a maintenance routine, whether they need it or not. This causes extra items on the transaction log, the longer the backups take, the longer the restores take. Spotlight on SQL Server alerts you when defragmentation needs to occur. Download Spotlight on SQL Server from – PowerPoint PPT presentation

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Title: How to Monitor Index Fragmentation in Spotlight on SQL Server Enterprise


1
How to Monitor Index Fragmentation in Spotlight
on SQL Server Enterprise
SQLDBApros
2
Why should you care?
  • Index fragmentation happens when a new record is
    inserted into a current database.
  • It is like adding a new name to a phone book,
    there is no room and the name has to be placed
    out of order.
  • Or taking a name out of a phone books, then there
    is a blank space, making the phone book longer
    than it needs to be.
  • Therefore taking longer to read it, back it up,
    and recover it.
  • If you do not defragment your indexes, your
    database has to cache all of those blank records,
    wasting memory.
  • Many defragmentation scripts are set to run as
    part of a maintenance routine, whether they need
    it or not.
  • This causes extra items on the transaction log,
    the longer the backups take, the longer the
    restores take.
  • Spotlight on SQL Server alerts you when
    defragmentation needs to occur

3
Monitoring index fragmentation
  • Bad internal fragmentation (a lot of empty
    spaces) and bad external fragmentation (a lot of
    records out of order) make the index longer than
    it needs to be and therefore storage performance
    is slower.
  • Setting a lower page fill filter (such as 50)
    makes your inserts incredibly fast, but your
    reads are twice as slow.
  • Tweaking this fill filter is a dangerous game
  • Spotlight on SQL Server will show you if the root
    of your problem is the fragmented indexes and how
    critical they are
  • Requiring an entire rebuild
  • Or just a defragmentation

4
Learn more with the following video
  • The following video teaches you how to monitor
    index fragmentation in Spotlight on SQL Server
    10.0
  • New features in version 10.0
  • Alarm that tracks whether large indexes require
    rebuilding
  • Home page metrics that allow you to easily
    drilldown for details
  • Quickly generate defragmentation script
  • How to set up customizable alarms
  • How to view easy home page metrics
  • How to get tailored scripts for your
    defragmentation jobs

5
Click to watch the video now
6
Learn MoreDownload Spotlight on SQL ServerView
Tutorial on YouTube
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