Hello,

1  : Turn OFF the Server and the Drive and disconnect the Drive
2  : Turn ON the Server and turn it OFF again...
3  : Connect the Drive and turn it ON...Let it boot
4  : Turn ON the Server

Hope this helps...

Hi again, 

I tried your solution, but no success. 
Have you any other ideas? 

Thanks. 

Is Windows 2008 R2 your media server (i.e. the server attached to the tape drive) or is 2008 R2 a remote server - reason for question is that 2008 R2 is not supported as a media server in 12.5 you need BE 2010 for that type of installation. 12.5 only supports media servers up to Windows 2008 (prior to R2)

Yes, Windows Server 2008 R2 is my media server, the tape drive is connected to it. 
So, the only way is to recconect tape driver to the Windows Server 2003? 

Thanks. 

Or upgrade to BE 2010

We are unable to process your request at this time. Your product may no longer be available for download or physical shipment. Please contact   Customer Care   for futher assistance.

When try to download upgraded version. 

Download BE 2010 from:
https://www4.symantec.com/Vrt/offer?a_id=91523

You wil need to use your forum crdentials to login.

This is a free 60-day evaluation version! Is it possible to register this version? 

I installed a new version of Symantec BackUp Exec 13.0 and know what? It is not help. 
The same error appear. 

Please help! 

Windows Server 2008 R2
Symantec BackUp Exec 13.0 (2010)
HP StorageWorks Ultrium 960

Evgenyy,

I had a similar problem that turned out to be hardware drivers for my LTO drive.  Running BE 12.5 on Win Server 2003 R2 x86 - Backups for me were failing at about the same point 4-5 GB mark) for my D2D backups until I did the following:

(1) confirm that newer Microsoft drivers were being used for my Dell PowerVault 114T - removed the device from backup exec, removed it from the server (hardware manager), and reinstalled with the OEM drivers that came with the drive.
(2) confirm BE LiveUpdates were current

From that point I no longer got this failure during backups in this way.

SystemsAdminAS, 

I made it, but when 16 gb was recorded on the tape the error appeared again. 

What I did:

1.In BackUp Exec 13.0 - Tools - Configure Devices - Configure Tape Dervices... - Install tape device drivers - Uninstall and remove all Symantec device drivers for all devices on your system - Finish
2. In Device Manager I removed Hewlett Packard LTO- Ultrium-3 drive and rebooted the system.  
3. Downloaded new driver and installed them. 
4. Tried to backup, got error. 

please, describe me your solution more detail if I wrong. Thanks a lot!

I found the answer! 

This article - http://seer.entsupport.symantec.com/docs/305233.htm

4. Disable the HP Management Agents:

Go to Control Panel > HP Management Agents, select the Services tab, then move SCSI Information to the Inactive Agents column. Retry the backup job.
If it still fails, try moving the performance monitor agent to the disabled column and try the backup again.

Everything working properly now. 

Thanks all.