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Backups to HP LTO Ultrium 4 tape drive fails with “A hardware error occurred” error when using UMD.

Created: 23 Jun 2011
sbora's picture
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Me Too!I have the same issue
Product(s): Backup Exec, Backup Exec - 2010
Severity: Minor functionality
Status: Investigating/gathering information
Tech Note: More Information
Backup job targeted to HP LTO Ultrium 4 tape drive fails with the error given below when User mode drivers are used.
Storage device "HP 0001" reported an error on a request to write data to media.
Error reported:
The request could not be performed because of an I/O device error.
V-79-57344-34029 - A hardware error occurred.

Force Kernel Mode Drivers (KMD) for the tape drive. To force KMD set the following registry key:

HKLM\SOFTWARE\Symantec\Backup Exec For Windows\Adamm\DioDrivers to "0xffffffff"

"0xffffffff" means - Do not use new device discovery. This disables the new device discovery process and as a result forces KMD.