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exchange 2010 DAG unable to mount database Log file is corrupt

Posted on 2012-04-07
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Last Modified: 2012-10-17
Recently we got one issue that one of our exchange database is not mounting after checking event viewer it is saying log files is corrupt.  Enclosed snapshot about the event viewer error.

We already tried mounting it with -Force switch but no results.  

The copy queue length at the time of writing this issue is 2808.

Kindly help.
sb-exch-err.png
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Question by:TabrezShaikh
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Expert Comment

by:Anuroopsundd
ID: 37819619
can you move the all log files from this folder and then try to mount. seems your log files are corrupt.
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Author Comment

by:TabrezShaikh
ID: 37820060
yes i did that it is mounted but one of the database file is showing failed and suspended.  Presently kept on database copy with seeding from source server, time elapsed at present is 1 hr 56 mins.  Does it take that much time my edb file is 57 GB.

And if it happens properly what should be the next step?
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LVL 9

Expert Comment

by:ash007
ID: 37822552
You will have to reseed the databases. Make sure that you suspend the database copy before starting the reseed.
You can reseed the Catalog files also
Update-MailboxDatabaseCopy -Identity DB1\MBX1 -CatalogOnly

http://technet.microsoft.com/en-us/library/dd335201.aspx


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Accepted Solution

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TabrezShaikh earned 0 total points
ID: 37823470
Thanks to all your valuable input.  After mounting the database and doing update database copy, exchange is up and running.

What is the best way to backup the exchange database and log files using windows backup tool as i dont have any exchange aware backup utility.

And can i restart my exchange server normally after backup?
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Author Closing Comment

by:TabrezShaikh
ID: 38504577
enable circular logging and moved all the log file to separate location and then mounted the database.
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