Document ID: 192130
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The error message "Bad Data" is reported by Backup Exec during backup or verify operations.
Exact Error Message
Backup Exec reported an error on a request to (read/write) data (to/from) storage media. Error reported: Bad Data

Details:
The "Bad Data" error is generic in nature and can be caused by many factors. The following list contains the most common reasons for this error and potential solutions:

1.  Contaminated read/write heads of the tape device. Running 3-4 consecutive cleaning cycles will usually resolve this problem.
2.  Bad media.  
3.  Tape head alignment problems. This would require replacing the tape device.
4.  SCSI transfer rate to the tape device is too fast. Use the manufacturer's SCSI setup program to lower the transfer rate.
5.  Disable the sync negotiation to the tape device in the SCSI setup program.
6.  Check/replace the SCSI cable or terminator.
7.  Isolate the tape drive on its own controller card.




Products Applied:
 Backup Exec 10d (10.1), 11d (11.0), 12.0, 12.5
Last Updated: November 27 2009 06:25 PM GMT
Expires on: 11-27-2010
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Subjects:
 Backup Exec
   Application: Backup
   Application Basics: Troubleshoot
   Priority: 09

Languages:
 English (US)

Operating Systems:
Windows 2000

Server, Server SP1, Server SP2, Server SP3

Windows Server 2003

Enterprise Server, Standard Server

Windows Server 2008

Enterprise (x64-64bit), Enterprise (x86-32bit), Standard (x64-64bit), Standard (x86-32bit)