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ITsVISTA KB-Link: KB979764

Add a fix to improve the logging capabilities of the Storport.sys driver to troubleshoot poor disk I/O performance issues in Windows Server 2008

On a Windows Server 2008 R2-based computer, it usually takes you lots of time to troubleshoot slow performance or unresponsiveness issues that occur when you perform disk I/O operations.

The most common cause of I/O latency issues is faulty or underperforming drivers. These latency issues occur specifically with disk or filter drivers. Disk drivers typically are associated with third-party Storage Area Network (SAN) products. Filter drivers typically are associated with antivirus, security, or encryption products.

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB979764.

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