Sql defrag manager

This procedure guides you through a typical install of SQL Defrag Manager. This process installs all SQL Defrag Manager components on one system. Use this procedure for first-time installations and evaluation installations.Before you begin the installation process, ensure you review:Product components and architectureProduct requirementsCheck Ports AvailabilityMake sure SQL Defrag Manager service can use port TCP 5280 for listening.Start the setup programBefore you install IDERA SQL Defrag Manager, be sure to have:A system that meets or exceeds the product requirements.A local administrator account on the system you are installing the product.1. On the IDERA SQL Defrag Manager setup window, click Next to continue with the installation.2. Read the License Agreement. If you agree, click I accept the Terms and Conditions and then click Next.3. To use the default installation settings, click Next. To use a different path, click Change.4. Choose a setup type. For your first install, we recommend using the Typical setup. This type ensures that you install and configure all required IDERA SQL Defrag Manager components, so you can immediately begin using the product in your environment.5. To select an instance for the SQL Defrag Manager Repository, type in the name of the instance or use the drop-down option to select an instance from the available local instances and click Next.The SQL Defrag Manager Repository stores all collected activity and defragmentation information, which you can then access in the SQL Defrag Manager Console. SQL Defrag Manager can connect to the selected SQL Server instance using the credentials of your current Windows login account or a SQL Server login. For your first install, we recommend using your current login account credentials. To specify a SQL Server login:Select Use Microsoft SQL Server authentication .Specify the credentials of a login with sysadmin privileges on that instance, and then click OK .Click Next .6. The SQL Defrag Manager service uses a Windows account to connect to the SQL Defrag Manager Repository. For your first install, we recommend using local system account for the Management Service account. Type in the appropriate credentials in the requested format (Domain\Username and password) and click Next.7. Click Install to perform the installation, click Back to review your settings. Click Finish when the installation finishes.

The pages using the original fill factor value specified for the table and then removes any empty pages. Consider the following conditions related to this compaction phase:Compaction is completely skipped if the Inhibit Page Locks property is set for the index.There are various algorithms built into the compaction phase to stop unnecessary work. For example, if the first page in the index is empty and all the other pages are full, SQL Server does not repeatedly move all the data forward one page.SQL Server compacts pages back to the fill factor value defined for the index. Make sure this value is not set too high. For more information, see the SQL Server documentation.If a lock cannot be obtained on a page during the compaction phase of DBCC INDEXDEFRAG, SQL Server skips that page.About Interleaved Indexes Interleaving occurs when an index extent, which is a group of eight index pages, is not physically contiguous because an extent for another index is intermingled with it. This condition can happen even when there is no logical fragmentation in the index. Although the pages may be physically and logically ordered, they are not necessarily contiguous. Switching between extents can impact performance as data access is inefficient. To resolve this issue, use SQL Defrag Manager to rebuild the indexes to store them in contiguous pages and reduce the need to switch between extents.SQL Defrag Manager SQL Defrag Manager is a unique SQL Server index defragmentation solution that automates the time-consuming process of finding index fragmentation in SQL Server based on parameters that you define within a policy for the targeted database. It gives you the flexibility to reduce the SQL fragmentation immediately or during off-peak hours, all through an easy-to-use graphical user interface. There are no manual scripts required to tackle fragmentation in SQL Server. SQL Defrag Manager improves server performance by reducing SQL Server fragmentation, which helps SQL server applications run faster and frees database administrators to perform other tasks.

New row does not fit, SQL Server splits the page roughly in half and inserts the new data on the new page, as shown in the following figure. Now, the logical order of the index does not match the physical order, and the index has become fragmented.How Does SQL Defrag Manager Defragment Indexes? Depending on the policy settings you select, SQL Defrag Manager defragments tables and indexes in one of the following ways:Rebuild The rebuild defragmentation type uses the DBCC DBREINDEX command to rebuild the indexes on the tables. The rebuild operation creates new, contiguous pages. SQL Server 2005/2008 allows the option to Rebuild Online, which allows access to the tables before the operation is finished. However, choosing to rebuild online requires more resources (disk space, CPU, memory), and may slow performance.Reorganize The reorganize defragmentation type uses the DBCC INDEXDEFRAG command to reorder the leaf pages of the index in-place.This process is similar to a bubble sort. Although the pages are physically reordered, they may not be contiguous within the data file. This issue can cause interleaved indexes, which need to be rebuilt to store them in contiguous pages.Defragmenting an Index Example Consider a simplified example of pages after many inserts, updates, and deletes, as shown in the following figure. The page numbering represents the logical sequence of the pages. However, the physical sequence, as shown in the figure from left to right, does not match the logical sequence. The following figure illustrates multiple passes during the Reorganize defragmentation process, which causes the physical pages to be reordered by having the first logical page swapped with the first physical page, and then the second logical page swapped with the second physical page, and so on. On the first pass, SQL Server finds the first physical page (4) and the first logical page (1). SQL Server then swaps these pages in a discrete transaction.On the second pass, SQL Server swaps the next physical page (7) with the next logical page (2).On the third pass, SQL Server swaps the next physical page (4) with the next logical page (3).On the fourth pass, SQL Server swaps the next physical page (5) with the next logical page (4).Sorting is now complete, as all the remaining physical pages match their logical positions. How SQL Defrag Manager Compacts Data In addition to reordering the leaf pages of the index, SQL Defrag Manager compacts the data in

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