Backup Exec 10 - Inconsistent Media Error

Hi Everyone,

I have been encountering an inconsistent media error on one of my backups on our Data server. The backup seems to run but fails during the verification process. I have read threads about this and have tried cleaning the drive and using new tapes etc but with no luck.

The backup is run at night time so I can't imagine the "Open File" option being the problem as data files won't be modified by users at the time of the backup.

Any help would greatful.

Thanks,
SEUPBAsked:
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DanMarCommented:
Another thing I know you are on version 10 however this page seems to look similiar to your problem: http://seer.entsupport.symantec.com/docs/304291.htm
It is suggesting driver updates.  I suggest putting in your build and installing updates that you see newer than what you have:
http://www.symantec.com/business/support/downloads.jsp?pid=15047
 
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DanMarCommented:
You can adjust the Microsoft VSS & Symantec shadow copy options in the job properties and see which works better.  If this doesn't fix can you paste the actual backup exec error?
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SEUPBAuthor Commented:
Hi DanMar,

Thanks for getting back to me. I have checked the job properties before as the weekly backup we have seems to run fine one week or for several weeks then fail the next. The final error that is given is below,

Job ended: 23 August 2010 at 20:42:39
Completed status: Failed
Final error: 0xe00084ca - The data being read from the media is inconsistent.
Final error category: Backup Media Errors

THanks,
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DanMarCommented:
What build are you on?  You could also try updating to latest build: http://www.symantec.com/business/support/downloads.jsp?pid=15047&type=patch
Updated media drivers:
http://www.symantec.com/business/support/downloads.jsp?pid=15047&type=Driver
Does the error expand any further?  Usually there are expandable links on the errors that show more info (I could be thinking about Backup Exec 11).  Also you should have an error in the event logs.  Can you also paste this?
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SEUPBAuthor Commented:
Hi DanMar,

We are currently on build Version 10.0 Rev. 5484. I know there is a Rev. 55** that I can apply.

Job Completion Status
Job ended: 23 August 2010 at 20:42:39
Completed status: Failed
Final error: 0xe00084ca - The data being read from the media is inconsistent.
Final error category: Backup Media Errors

For additional information regarding this error refer to link V-79-57344-33994
 

Errors
Click an error below to locate it in the job log
Verify- D: DataAn inconsistency was encountered on the storage media in HP 1.
V-79-57344-33994 - The data being read from the media is inconsistent.


http://www.symantec.com/business/support/knowledge_base_sli.jsp?umi=EvtID=V-79-57344-33994

That above is all I get from the error report. It seems to be a verification report but I don't understand why it would be happening.

Thanks,
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DanMarCommented:
Something else to look into is the tape drivers and firmware.  There is an option to use Symantec drivers.  Have you changed these options at all?  Looks like you have a HP drive.  I suggest updating the firmware.  If you cannot find the software for this please post your model & I will send you the link.
I do recommend updating your version to latest possible remaining within your license i.e. 5484 SP5, 5520 SP2 or 10(d) would be even better.
Another recommendation is to update your SCSI adapter drivers as well.
When I have been confronted with obscure BEWS errors I have done a sweep to make sure all is up to date, reinstall the tape device in BEWS and recreate jobs.
Few things to try here.
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SEUPBAuthor Commented:
Hi DanMar,

Thanks for getting back to me. I have already updated the SCSI adapter drivers and the HP drive firmware without any luck. I will try and update the software and see if that resolves the issue. I'll let you know how I get on when I have tried this.

Thanks,
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DanMarCommented:
Make sure you check that you are covered for licensing.  If you backup too many remote boxes and don't have enough open file it sometimes fails with generic errrors.
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SEUPBAuthor Commented:
Hi DanMar,

Can you explain to me a bit more what you meant by "If you backup too many remote boxes and don't have enough open file it sometimes fails with generic error"?

What do you mean remote boses and enough open file?

Thanks,
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DanMarCommented:
I was referring to the open file licensing.  You can see how many you have by running the licensing tool within Backup Exec.  
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SEUPBAuthor Commented:
Thanks DanMar,

I will give these a go as well.
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SEUPBAuthor Commented:
Apologies for the delay DanMar
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