Please perform the suggestions in this checklist prior to calling Technical Support. It is quite possible that your issue may be resolved by checking these items.
Clean your tape drive.
Simply cleaning your tape drives on a regular basis will often solve issues with writing or reading data. More information on how and when to clean your drives can be found in the Knowledge Base under Do I need to clean my tape drive?
Update your device firmware.
By using the latest released firmware in your tape drives, autoloaders and libraries, you will avoid any problems in older firmware versions which may have already been fixed.
Check your bus configuration and cables.
Improper bus configuration or bad cables are by far the most likely culprits when facing issues such as:
Devices not being seen in the operating system.
Intermittent or unexpected "I/O" errors.
Losing communication with a tape drive during backup.
Event ID 9 or 11 errors in Windows operating systems.
Unexpected bus resets.
Check your Operating System and backup application configuration.
Check if your backup application supports your tape drive, autoloader, or library. It may be necessary to install device support patches from your application vendor. Check the vendor's website for details about your specific configuration.
Check if the appropriate driver is loaded for your bus controller. Refer to the installation instructions for your controller.
Check if the appropriate driver is loaded for your Tandberg Data tape drive. Windows drivers for Tandberg Data products are provided primarily for use with the Microsoft native backup application. Do not install the generic Windows drivers if you are using a third-party backup application, unless directed to do so in the application installation instructions.
Check the Tandberg Data Knowledge Base for integration tips on various operating systems such as Solaris, Linux, AIX and more.
Try a new tape.
A worn or damaged tape may result in write or read failures. Keep track of which tapes fail during write or read. If you notice that a particular tape has failed more than once, mark that tape as questionable and do not use it for critical backups.
Run an Internal Self Test.
An Internal Self Test performs a series of tests designed to eliminate all outside factors and determine if the drive is functional. The test does not use software or operating system drivers, does not write data from the server and does not access the SCSI bus when testing the drive.
Drives that pass the Internal Self Test are deemed to be functioning properly.