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Exchange Backup

Posted on 2011-03-06
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Last Modified: 2012-05-11
I am getting this error whene backing up my exchange 2007 using symantec BE 12.5.

(Server: "ServerName"  (Job: "Exchange Backups-Windows Backup-Windows Full Backup") Exchange Backups-Windows Backup-Windows Full Backup -- The job failed with the following error: The consistency check of the snapshot for the Microsoft Exchange transaction log has failed.  You should check for possible data corruption in the transaction log that is online.

Any ideas?
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Question by:cheto06
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Expert Comment

by:Tonypeswani
ID: 35047567
I would suggest you to check the VSS writers on the server before staring the full backup
Please run the below command in the CMD window
VSSADMIN List writers

And  check the writes state it should show as "Stable" and if any error found that needs to be fixed.
Once it is fixed it will allow you to run initial backup for exchange server.

Thank you
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Expert Comment

by:Glen Knight
ID: 35047942
This is mostly likely down to a bad transaction log.

Can you enable circular logging so that all the transaction logs are truncated.  Then try again to see if the backup runs.

Enable circular logging: http://technet.microsoft.com/en-us/library/bb331968(v=exchg.80).aspx
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Author Comment

by:cheto06
ID: 35048060
All the writers check ok and have a "no error" result.

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by:cheto06
ID: 35048303
Does the Volum Shadow Copy service needs tobe running  on either the backup or exchange server?

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Expert Comment

by:Glen Knight
ID: 35055009
Did you try my suggestion?
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by:cheto06
ID: 35057776
If I enable Circular Loging what would happen with the uncommitted email?
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by:Glen Knight
ID: 35057791
there are no uncommitted emails.  All mail is committed to the database, the logs are used as a record of that transaction in case you have to restore the database.

Circular logging will not effect this.
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Author Comment

by:cheto06
ID: 35058109
So If I enable circular login. I run the backup while it is enabled?  After that I should disable it if it works?
I will try that tonight as this requires the restart of the IS
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Expert Comment

by:Glen Knight
ID: 35058124
correct.  I am trying to identify if there is a log file that is causing problems.

When you enable circular logging the logs should all get flushed within a few minutes, if they don't make a note of how many are left and what dates/size they are.
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Author Comment

by:cheto06
ID: 35059535

OK, it appears that enabling CL is out of the question until all other options are try. I found event ID 477 and 440
Event ID 440:
Storage Group\E00000575F1.log is damaged, invalid, or inaccessible (error -501) and cannot be used. If this log file is required for recovery, a good copy of the log file will be needed for recovery to complete successfully.

Event ID 477:
beremote (3656) Instance 1: Log File Integrity Check (\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy163\First Storage Group\E00): The log range read from the file "\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy163\First Storage Group\E00000575F1.log" at offset 675328 (0x00000000000a4e00) for 12800 (0x00003200) bytes failed verification due to a range checksum mismatch.  The expected checksum was 2072873601 (0x7b8d8a81) and the actual checksum was 3578040162 (0xd5448f62). The read operation will fail with error -501 (0xfffffe0b).  If this condition persists then please restore the logfile from a previous backup.

440 points to this log in particular E00000575F1.log
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Glen Knight earned 500 total points
ID: 35059640
As I suspected it's a corrupt log file.

Can you follow these instructions for manually removing the logs: http://support.microsoft.com/kb/240145 it's for Exchange 2003 but the procedure is the same.
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Author Comment

by:cheto06
ID: 35065982
No Luck.
I dismounted the dbs, removed the affected log, remounted the dbs abd run the back up job.  It failed again with the below errors.  Now i don't see events pinpoiting a specific log file.

Job Completion Status
Job ended: Monday, March 07, 2011 at 9:23:32 PM
Completed status: Failed
Final error: 0xe000032d - The consistency check of the snapshot for the Microsoft Exchange transaction log has failed.
 You should check for possible data corruption in the transaction log that is online.
Final error category: Resource Errors

For additional information regarding this error refer to link V-79-57344-813

 

Errors
Click an error below to locate it in the job log
Backup- \\server.mycorp.com\Microsoft Information Store\First Storage Group V-79-57344-65072 -
The Exchange Store service is not responding. Backup set canceled.
Verify- \\server.mycorp.com\Microsoft Information Store\First Storage Group
Unexpected end of backup set encountered on Backup-to-Disk Folder 2.
V-79-57344-34004 - End of data set was unexpectedly encountered.
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Author Comment

by:cheto06
ID: 35071312
Any update will be appreciated.
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Expert Comment

by:Jian An Lim
ID: 35091252
what exactly version you are on BE 12.5?
are you on sp?

again, do you have active support? BE12.5 is 2 major release behind....

=============

okay,
try to run eseutil /mh to check whether you have a dirty shutdown

in your backup selection, only do either system states OR exchange application


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Author Comment

by:cheto06
ID: 35096084
I have BE 12.5 rev.2213 and no I don't have active support.

I am scheduling downtime for tomorrow to run this.

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Author Comment

by:cheto06
ID: 35132667
(Server: "SBAKHQ01-P") (Job: "Exchange/Bberry Backups-Windows Backup-Full Monthly Backups") Exchange/Bberry Backups-Windows Backup-Full Monthly Backups -- The job failed with the following error: The directory or file was not found, or could not be accessed.
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Expert Comment

by:Jian An Lim
ID: 35133327
this means a folder was missing.

when you go to your backup selection list,
convert it to list view so you can see which folder you have delete (in real life) but it stick there.


do you really have a folder call Exchange/Bberry Backups ?
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Author Comment

by:cheto06
ID: 35133337
That is the name of the back up job: Exchange/Bberry Backups

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Expert Comment

by:Glen Knight
ID: 35133362
Looks like you have something in the selection list (switch to text view on the selection list to check) that isn't there anymore or that the user that the backup services are running under doesn't have the necessary permissions to.
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Author Comment

by:cheto06
ID: 35133379
Sorry but where do i change it to list view? When i click on Edit Selectio List all i see there is "View Selection Details"
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Author Comment

by:cheto06
ID: 35133392
The user is the local admin account. It passes authentication when I test all resources.
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Expert Comment

by:Jian An Lim
ID: 35133421
can you post your WHOLE backup log here? it is very hard to troubleshoot without looking at the real issue
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Expert Comment

by:Glen Knight
ID: 35133426
It's been a while since I've used BackupExec but when you go in to the selection list there is a radio button, List View or Text View.
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Author Comment

by:cheto06
ID: 35133487
I am using version 12.5 /SP4 and I don't see that option.
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Expert Comment

by:Jian An Lim
ID: 35133508
screenshot time!
can you upload a screen so we are on the same pagE?
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Expert Comment

by:Glen Knight
ID: 35133514
Please see image attached backupexec.jpg
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Author Comment

by:cheto06
ID: 35133589
Sorry what am i supposed to do with this?
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Expert Comment

by:Glen Knight
ID: 35133598
It's a screen shot of what to look for in your selection list.

So when you open the properties of the selection list there is a tab for View Selection Details.

Is there a path listed there that is no longer available?
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Author Comment

by:cheto06
ID: 35133641
Here's what I have.
ExchangeSelection.bmp
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Expert Comment

by:Glen Knight
ID: 35133673
OK, great, can you now attach the log file from the backup please.
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Expert Comment

by:Jian An Lim
ID: 35133823
(Server: "SBAKHQ01-P") (Job: "Exchange/Bberry Backups-Windows Backup-Full Monthly Backups") Exchange/Bberry Backups-Windows Backup-Full Monthly Backups -- The job failed with the following error: The directory or file was not found, or could not be accessed.


there is a command call BEdiag.exe (which inside the subfolder for backup exec )
it will collect alot of useful information includes logs.
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Expert Comment

by:Jian An Lim
ID: 35133834
sorry, i think i should withdraw my attention and let demazter continue, i will unsubscribe the thread now :)

good luck
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