The "Cyclic Redundancy Check" (CRC) error is generic in nature and can be caused by numerous factors. The following list contains the most common reasons for this error and potential ways to resolve the problem:
1) Contaminated read/write heads of the tape device. Check with the hardware manufacturer for proper cleaning techniques.
2) Bad media. Replace the media. Try a new tape that is certified by the hardware manufacturer.
3) This error usually occurs due to hardware or SCSI related issues.
Perform the following steps, which will help in resolving the issue.
1. Ensure that the device is properly terminated.
2. Clean the device used. Refer to the manufacturer manual for cleaning instructions.
3. Update the firmware of the tape devices used to the latest.
4. Ensure that SCSI controller drivers are updated to the latest 5. Try using NTBACKUP for backing up data.
Note: Stop all the Backup Exec services and before performing NTBACKUP operation.
Also let us know the results of the test using NTBACKUP.
We would suggest you please refer to the following technote, which will give you possible solution to the problem that you are facing.
http://seer.support.veritas.com/docs/192216.htm
6. To isolate the problem, try performing backup on a Backup-to-disk folder.
Please carry out backup operation on Backup to disk folder and let us know if you come across the same errors .
For more information on Backup to Disk folder, you may refer to Administrator's Guide VERITAS Backup Exec (tm) 9.1 for Windows Servers Administrator's Guide (English) http://seer.support.veritas.com/docs/266190.htm
( Refer from page number- 149, Using Backup to Disk folders and files )
b) Try using NTBACKUP for backing up data.
Note: Stop all the Backup Exec services and before performing NTBACKUP operation.
Also let us know the results of the test using NTBACKUP.
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In addition to the above steps please refer to the following steps as well.
Uninstall the existing device drivers and reinstall the latest Veritas drivers. Run tapeinst.exe to install Veritas driver.
"TAPEINST.EXE" is located in the directory x:\Program Files\VERITAS\Backup Exec\NT (TAPEINST.EXE" is an automated installation application for installing tape device drivers ) http://seer.support.veritas.com/docs/199881.htm
Download device drivers from the following link.
VERITAS Backup Exec (tm) 9.1 - Device Driver Installer (20050115) - Includes Tape Driver Release (20041231) and Robotic Library Release (45) (Intel Only)
http://seer.support.veritas.com/docs/273853.htm
Title:- VERITAS Backup Exec (tm) 10.0 - Device Driver Installer (20050115) - Includes Tape Driver Release (20041231) and Robotic Library Release (45) (Intel Only)
http://seer.support.veritas.com/docs/273887.htm
Also refer the following technote :-
http://seer.support.veritas.com/docs/245177.htm
We hope this helps.
