"The requested media failed to mount" error message when you try to perform a backup in Windows SBS 2003 (831664)

SYMPTOMS

When you configure a backup by using the Server Management console in Microsoft Windows Small Business Server (SBS) 2003, the backup operation may be unsuccessful, and you may receive the following error message in the backup log when the backup starts: The requested media failed to mount. The operation was aborted.The backup destination may also be set to "miniQIC" instead of to the actual tape drive, and you may not be able to change this selection.

CAUSE

This problem may occur if your tape drive supports tapes with different media block sizes. When you configure a backup by using the SBS 2003 Server Management console, the backup program selects the first tape type that is available, and this selection may not correspond to the tape that is in the drive. This problem is known to occur with the Seagate Travan 20 tape drive. However, this problem may occur with any tape drive that supports multiple tape types.

Note If the backup runs for a while and then encounters this error, it generally indicates that you are out of space on the backup tape.

RESOLUTION

Important This hotfix only applies if a backup that is scheduled by using the Backup Configuration Wizard cannot start. This hotfix does not apply if the error message that is mentioned in the "Symptoms" section appears during the course of the backup. The following file is available for download from the Microsoft Download Center:

Download the 831664 package now.

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes. The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   ------------------------------------------------------------
   06-Nov-2003  04:32  5.2.2651.1         72,192  Bkprunner.exe

MORE INFORMATION

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the Standard Terminology That Is Used to Describe Microsoft Software Updates