The first thing to be checked is

The tape drive should be using the latest Symantec drivers. This can be checked from the Device Manager. An attempt to reinstall the drivers can also be made.

D. If getting Event ID: 57612 and Event ID:57608 in the application log:

The event was reported in the Application Log because the Backup Exec Job Engine or the Backup Exec Remote Agent for Windows Servers encountered an inconsistency in the data format on the media during a read operation (restore, verify, set copy, or catalog without using media based catalogs). This may be the result of encountering End Of Data unexpectedly. This may be the result of losing power to a tape drive and/or the backup server during a backup operation. If this is the case, there is no more data available beyond that point, and the error during the read operation is expected. This may also be a problem with fast positioning, and may be resolved by setting "Use Fast File Restore" to zero in the Registry.

To change this value, do the following:

1. Stop all the Backup Exec services.

2. Run REGEDT32.EXE.

Warning: Incorrect use of the Windows registry editor can have disastrous results on a server operating system. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application.

3. Browse to the following key:

For Backup Exec Version below 11D:

HKEY_LOCAL_MACHINE\SOFTWARE\VERITAS\Backup Exec\Engine\Tape Format

For Backup Exec version 11D and above please refer to the registry key mentioned below :