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SCSI Port Driver Update

This update resolves the "SCSI Port Driver" performance issue in Windows 2000 computers, and is discussed in Microsoft Knowledge Base Article Q276253. Download now to improve the performance of your small computer system interface (SCSI).

When the SCSI bus (which carries data and control signals from SCSI devices to a SCSI controller) is too busy to handle a request from the SCSI port driver, it fails the request and returns a Busy or Queue Full status. The SCSI port driver places the request back in its own queue and reissues the request up to 25 times. If the SCSI bus fails consecutive requests in rapid succession, an error occurs that causes the driver to reset the SCSI bus automatically. When this happens, all requests in the queue are lost, resulting in performance problems.

For more information about this issue, read Microsoft Knowledge Base (KB) Article Q276253. (This site is in English.)

System Requirements
This update applies to Windows 2000.

How to use
Restart your computer to complete the installation.

How to uninstall

1. Click Start, point to Settings, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Select Windows 2000 Hotfix (Pre SP3) [See Q276253 for more information], and click Change/Remove to uninstall.

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