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Backup Exec 2010 R3 - unknown error when backup up to Tandberg LTO

Posted on 2013-12-22
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Last Modified: 2014-02-07
Hello,

I just replaced my HP tape drive with Tandberg LT04. It was recongnized fine with backup exec, I labeled and formatted the tapes just fine. When backing up to it, it just fails with unknown error. I triedn installing and reinstalling, different drivers, and it is always the same thing.

Storage device "TANDBERG 0001" reported an error on a request to write data to media.

Error reported:

A device attached to the system is not functioning.

V-79-57344-34036 - An unknown error has occurred.


Any ideas?
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Question by:goliveuk
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Expert Comment

by:Netflo
ID: 39734957
You should be using the Symantec tape drivers not the manufactures. See the following link on how to install the correct drivers and be sure to reboot: http://www.symantec.com/business/support/index?page=content&id=HOWTO73431
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Author Comment

by:goliveuk
ID: 39737017
Netflo,

I started with Symantec drivers for the drive. Now I re-installed them, and it is the same issue.
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Expert Comment

by:Netflo
ID: 39737033
Have you tried updating the firmware of the hardware in accordance to the vendors specs?
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Author Comment

by:goliveuk
ID: 39744823
Yes, It is updated with the latest firmware
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by:Netflo
ID: 39753634
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Author Comment

by:goliveuk
ID: 39764734
Hello Netflio,

I went through all the steps, and still no luck :(
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LVL 18

Expert Comment

by:Netflo
ID: 39766035
I'm afraid I'm out of responses.
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Author Comment

by:goliveuk
ID: 39767315
I will try reinstalling the backup exec, to see if that will help.
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Accepted Solution

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goliveuk earned 0 total points
ID: 39828875
I fixed by using this registry change:

The steps are as follows:
1 Open Windows regedit.

2 Open the path HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\SCSI\[device identifier name for the tape LTO-3 tape device]\[numeric device instance id for the LTO-3 tape device]\Device Parameters\

3 Add a key named Storport under Device Parameters (if there is not one there already).

4 Add a key name called BusyRetryCount. The key type is REG_DWORD, and the value should be set to 4b hex (75 decimal).

**WARNING!
I FOUND 75 DID NOT WORK ON 2008. IT DID ALLOW THE BACKUP TO GET FURTHER BUT FAILED WITH SCSI ERRORS AGAIN. SOME KB's INDICATED THAT SERVER 2008 SHOULD HAVE THE VALUE SET TO 250 DECIMAL (FA IN HEX). THIS WORKED FINE AFTER USING 250. APPARENLTY THE MAX VALUE IS 500 IF YOU CONTINUE TO HAVE ISSUES.
**

5 Exit Regedit.

6 Reboot the server.


Source:

http://h30499.www3.hp.com/t5/ProLiant-Servers-ML-DL-SL/DL380G5-and-HP-LSI-Ultra-320-Scsi/m-p/4163558#.Uu9FBftBmc9
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Author Comment

by:goliveuk
ID: 39828878
I found the solution myself
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Author Closing Comment

by:goliveuk
ID: 39841402
I found the solution myself
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