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Is Fragmentation Robbing SAN Performance?
The Biggest Missed Culprit in SQL Performance Troubleshooting
SQL Batch Job Hell
$2 Million Cancelled
Yes, it certain can. As database files can become fragmented in the same fashion that all other files can become fragmented, the result can increase the I/O’s necessary to access these files. Compound that with the frequent use that databases go through and the problem can be very evident. Diskeeper works just fine with a variety of databases, small and large, ranging from SQL, Exchange, SMS, Sybase, Oracle, Informix, etc.
Diskeeper is not however a solution for the “internal fragmentation” that a database may suffer. Such “internal fragmentation” may still require a reindex (found within the database management itself).
To download and install Diskeeper please follow these instructions:
Note: Please make sure the executable file and the license file are located inside the same directory before executing the installation process.
To ensure a successful download, we recommend quitting / disabling any other programs, including virus-protection / firewalls and any third-party download managers. These programs can and may interfere with your download process.
Try downloading your product. If this fails please go to the next step below.
1. Quit Internet Explorer and quit any instances of Windows Explorer. 2. Click Start, click Control Panel, and then open (double-click) Internet Options. 3. On the General tab, click Delete Files under Temporary Internet Files. 4. In the Delete Files dialog box, click to select the Delete all offline content check box, and then click OK. 5. Click OK.
Learn more about How to Delete Temporary Internet Explorer files
Try downloading your product. If this fails go to the next step below.
Server error or file not found error:
Sometimes, if the link gets wrapped onto two lines in your email then the whole link does not get used. If this appears to be the case, try copying the first line of the address and pasting it into the address bar of your web browser and then copying and pasting the second line into your browser (at the end of what you already pasted).
If you continue experiencing problems with the download, please respond by including a screenshot of your desktop. This will help us assist you to get your product.
Diskeeper has no special “bad block” handling logic.
Diskeeper uses the Windows MoveFile.API to read from and write to all clusters on a volume. The Windows Operating System however, can detect that an I/O was attempted to a bad cluster and can then return an error to Diskeeper. The Windows Operating System will then mark the volume as “dirty” and require that CHKDSK run to clean it up.
Wherever CHKDSK is defined on a volume, Diskeeper will not run until that is cleared up.
Updated User Interface - Fresh new user interface with an easy simplified navigation that allows users to see what is happening at a glance, but still provides drill–down architecture of information for those that want it.
Disk Health Monitoring - Monitors SMART disk data; checks for other critical file system problems; warns of critical problems or an imminent disk failure; generates alerts by e-mail for 24/7 monitoring.
System Monitoring – Collect statistical data about system I/O usage, disk state, Diskeeper effectiveness, etc.; sends data for analysis; provides summary of the statistical data gathered for system performance monitoring purposes.
HyperBoot™ – HyperBoot technology improves boot times.
CogniSAN™ – Detects external resource usage within a shared storage system, such as a SAN, and allows for transparent optimization to minimize resource contention without intruding in any way into SAN–layer operations.
I-FAAST® 2.0 - Honors file exclusion which improves compatibility with third party applications while allowing finer adjustment by the sys admin in specialized situations.
HyperFast® 2.0 – Organizes user data using SSD and TRIM to improve performance. Included standard with all Diskeeper 12 editions.
Space Reclamation Engine (for Server editions) – The new Space Reclamation engine is designed to zero out blocks of unused space on SANs and thin-provisioned volumes in virtual environments so that the controller or hypervisor will reclaim the blocks and free them up, giving you more available space for your virtual machines.
IntelliWrite is the ground breaking technology that prevents the majority of fragmentation from ever occurring, dramatically improving Windows system performance.
A small percentage of fragmentation is not preventable and will be eliminated by Automatic Defragmentation. The combination of IntelliWrite and Automatic Defragmentation will keep your system running at optimum performance in the most effective and efficient way possible.
Prevention of fragmentation with IntelliWrite has been found to be more efficient than other defragmentation methods. IntelliWrite reduces the need for disk head movement and results in a reduction of system resource usage and power consumption.
Note: IntelliWrite requires more than 2 GB of free space to run.
Open the Volume Properties task group and select the IntelliWrite option to navigate directly to the IntelliWrite properties page.
In the Computer pane, select the volumes you want to address and toggle the checkbox to the desired setting. Click OK to save your changes and close the Volume Properties console, or click Apply to save your changes and keep the Volume Properties console open.
This section of the Dashboard tab explains that IntelliWrite increases system performance by preventing fragmentation before it happens.
IntelliWrite System Statistics for All Volumes Since the Previous Day
This section of the Dashboard Tab includes statistical information regarding fragmentation prevented by IntelliWrite, fragmentation eliminated by Automatic Defragmentation, and a sum of the two numbers since the previous day.
It is important to note that the amount of fragmentation prevented is an estimation determined by a large number of factors and extensive testing. The IntelliWrite graphs are designed to approximate fragments prevented across a wide range of applications and must incorporate various types of file writes and modifications into a singular display. In some cases the charts may over-estimate and in other cases, underestimate. For example, on SQL Server® the graphs may overestimate about 10% of the fragmentation prevented, on Microsoft® Office documents it may underestimate the number of fragments prevented by 80%. What is important is that with IntelliWrite enabled, fragmentation is being handled, before it happens. The end result of having Diskeeper with IntelliWrite and Automatic Defragmentation working is a system running at peak performance in the most efficient way possible (without fragmentation).
The statement: “Proactive prevention is the most energy efficient method to eliminate increased storage power consumption caused by fragmentation,” points out that when IntelliWrite is handling your system’s fragmentation, it is reducing the amount of disk head movement previously needed to accomplish defragmentation and therefore is reducing Diskeeper's total system resource footprint.
System Fragmentation Prevention Graph
This section of the Dashboard tab shows system fragmentation prevented by IntelliWrite in real-time. In the graph, fragmentation prevented every second, within the last minute, for your entire system, is displayed in green. The scale on the left side of the graph pertains to the number of fragments that have been prevented and the scale along the top of the graph pertains to the seconds in the last minute.
Statistical Information for Selected Volume(s) Since the Previous Day
This section of the Dashboard tab shows statistical information for selected volume(s) since the previous day. The columns of the table include the name of the selected volume(s), whether or not IntelliWrite and Automatic Defragmentation are enabled, the number of fragments prevented, the number of fragments eliminated and file read/write time % improvement.
1) Does the volume in question have more than 2GB of free space? If not, then free up some disk space on that volume and wait for an hour. IntelliWrite® needs more than 2GB of free space in order for it to be enabled on the volume; Diskeeper checks the free space status hourly and enables or disables IntelliWrite accordingly.
2) Verify that IntelliWrite is enabled on the volume by checking the status of IntelliWrite in the Computer Pane. If it is not enabled, then enable it.
The following error messages can occur if the Diskeeper® service is not installed properly or is not running:
"Diskeeper failed to connect to the service. The service may have stopped. The Windows® event log may have further data regarding service stop."
"Unable to launch or connect to the Diskeeper service. Possible causes are that another Diskeeper process is currently connected to this computer or Diskeeper is not installed correctly. 0002"
"Diskeeper service failed to start within xx seconds."
Please take the following steps to resolve the issue:
Sometimes an error can occur during installation leaving you with a partly installed product which then causes subsequent installation attempts to fail as well.
This can also happen when uninstalling a product.
Fortunately, Microsoft has created a Fix it utility that you can run to clean up installations.
Please visit the following website to learn more about the Microsoft Installation Fix it utility.
Run this program to resolve problems that prevent Diskeeper® or Undelete® software from being completely uninstalled.
Once this is done, you should be able to install your purchased software without any issues.
For download links to your purchased software, please visit http://my.condusiv.com and login using the email address that you provided when you purchased your software.
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