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Exchange Data Store - Corrupt

Hi Experts,

We have been experiencing issues with Exchange will having it backed up via Symantec Backup Exec. Reports suggest that the file is corrupt. I have been advised by Symantec to run the following:

Eseutil /g

To verify the integrity of the database. Question I have, can this be done while the data store in online or would need to be done offline. Also how long does it take? (size of data store is 250GB)

Thanks for your help in advance.

introlux
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introlux
Asked:
introlux
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1 Solution
 
Lior KarasentiCommented:
It have to be offline, Read more here:

http://technet.microsoft.com/en-us/library/aa998361%28v=exchg.80%29.aspx

As for time estimate you can copy the database to another machine and run the Eseutil
there, that will give you exact time needed to finish
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introluxAuthor Commented:
What do you mean by copy the file the another machine? Could I run the Eseutil /g on the file I copy over?

Will Eseutil /g repair the data store if there is faults? or will this only check?

introlux
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mumbaiexpertsCommented:
Hi ,you run the eseutil /g in offline mode (all eseutil commands run in offline except eseutil /mk command )and it takes nearly 60 hours in exchange 2003 for hard repair the database(eseutil /p) & exchange 2007 and Exch2010 depends on server performance.Roughly exch2010 takes 10 GB per hour).I have small clarification ,Already you took the Exchange Backup.that backup is clean shutdown or dirty shutdown.If your Backup is clean shutdown ,just restore the Backup,after restoring the backup ,it shows dirty shutdown.Once restore process is complete,compulsory run the soft recovery(eseutil /r).After running the soft recovery your database goes to clean shutdown.then after you will mount the Exchange database successfully.

Cheers!
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Lior KarasentiCommented:
Is you can copy the EDB file and run the Eseitil on the file, and no it will not repair just integrity check
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introluxAuthor Commented:
I don't really understand - The backup was done via Symantec Backup Exec 2010 R3.

We are currently running Exchange 2007, so you estimate 60 hours approx. to run this? You haven't specified if I can do this if I was to move/copy the file to another location.

We are trying to minimise the downtime.

Also have I understood this correctly, would Eseutil /g only check? or will this repair?

Thanks,

introlux
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introluxAuthor Commented:
Will I need to unmount the data store before copying this to another location or can this be done while it is mounted?
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AmitIT ArchitectCommented:
If DB is working fine and users are able to access mailboxes, don't run this command, better create new db and move all mailboxes to new db and get rid of this old db. No downtime required for this task. Easy and simply way.
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introluxAuthor Commented:
There will be some downtime to move the mailboxes across to new db. We have ordered new disks to get our space to carry out this task. Is there a quick command that we can use to move the mailboxes quickly over to the new db?
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AmitIT ArchitectCommented:
Downtime involved only for users who's mailboxes are in the move process. Rest still be able to access.
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introluxAuthor Commented:
Is there a command line that we can use to say move all users from db A to db B?
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introluxAuthor Commented:
Thanks!
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