Exchange DB Recovery

Hi,
While discussing some of the points with folks we just got in to a topic of Exchange DB recovery.
If i am running a Exchange 2007/2010 and if my Disk drive where DB is resided is crashed completely and do not have any backup. Now i am left with only transaction logs and not even have edb file. In this case will i be able to recover my old data using
Transaction Log Files ?
I understand that new Blank DB can be created in new Drive if drive is crashed but my worry is for recovering the old mails.
I hope i wont be able to reply my old logs in newly created/black DB since sequence of log file is different.
Kindly share your experience/ thought on above case.
Note: Pls assume that no high availability or backup is in place, this we are thinking as last step of recovery.
Regards:Mahesh

Hi
What happens when the database file is lost? If we have all the log files still available it should be possible to retrieve all information. “everything is logged in the log files, even the creation of database files”
If you dismount the database, delete the database file “mailbox database.edb” or whatever name you have given the database and try to mount the database again, the following error is raised:”one of database file is missing.
Mounting this store will force the creation of an empty database. “When you click “Yes” a new mailbox will be created in the same location as the “old” database. This is a completely new database. Although it has the same name “mailbox database.edb”
as in the previous step, it has new signatures. Recovery of old log files will not result in information being replayed into the database because it is another database in this scenario. And remember, since all information is logged into the log file the creation
of this new database is also logged. Choose No, and then delete the checkpoint file E00.chk and try to mount the database again. No error message is raised and the database is mounted. Even better, when you log on to your test mailbox you will see that no
information is lost either. Therefore it starts to recover all information by replaying the available log files. It starts with the oldest log file E0000000001.log which also contains the creation of the initial database file. All information in the
other log files is replayed into this database until it reaches the end of the last log file E00.log. The database is mounted and ready to use.When Exchange Server cannot find the database file but it does find the checkpoint file it will not replay
the log files. It starts at the end of the last log file E00.log and it will create a new database.
Terence Yu
TechNet Community Support

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Hi kapil,
Thank you for your question.
From the error, we analysis the service of “Microsoft Exchange Service Host” didn’t start, we could refer to the following steps to start it:
Run “services.msc” in RUN;
Find “Microsoft Exchange Service Host” and right click “property”;
Change “startup type” into “automatic”;
Then click “start”;
We could check if the issue persist.
If there are any questions regarding this issue, please be free to let me know.
Best Regard,
Jim

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Hi Guys,
I would like to ask if there's a log or any information that can check on the exchange server 2003 and exchange server 2007 if there's a restore mailbox occur on a particular exchange server 2003/2007? Is this can be audit? Let say for example how would I know if the admin guy perform any restore mailbox in a month? is there any log or auditing we can set so that we can track it?
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Hi,
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Please click the Mark as Answer button if a post solves your problem!

Hi Eric,
From your description, I would like to clarify the following things:
1. Before performing the restore process, we need to dismount the Exchange databases that we want to restore. If the database is still mounted, the restore process will fail. If the restore process doesn't succeed, Restore.env won't be generated.
2. It is because the log files are healthy, you can run Eseutil/r and perform soft recovery.
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Exchange Server Soft and Hard Recovery
http://technet.microsoft.com/en-us/library/aa996168(v=exchg.65).aspx
Exchange Database Recovery – Using eseutil commands (Note: It isn't from Microsoft, please pay attention to refer to it.)
http://msexchangeguru.com/2009/07/12/exchange-database-recovery-using-eseutil-commands/
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Amy Wang
TechNet Community Support
" If the restore process doesn't succeed, Restore.env won't be generated. "
thank you for you reply.The restore process succeed,otherwise I can't do the soft recovery after the restoring the database,but can't see the restore.env
Please click the Mark as Answer button if a post solves your problem!

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Exchange EDB Recovery is powerful tool to repair and restore inaccessible mailboxes of Exchange Server and repairs the database files of Exchange Server. It recovers EDB server mailboxes and imports them directly to Outlook and these files are used as PST
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EDB to PST Converter is all-in-one solution to perform backup, restoration, Exchange database recovery, EDB file conversion, email migration, OST restoration and email search.
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EDB to PST Converter, you can keep the environment of MS Exchange functioning well and running. With this software, you can repair damaged or corrupt EDB server files and extract both multiple and single EDB mailboxes and export the same into Outlook PST,
EML, HTML, RTF and MSG formats or Office 365 or Text file.
It features graphical interface which is self-descriptive and easy-to-use which gives rich user experience and is much easier to run even for the beginners. With this software, you can efficiently and easily restore and repair damaged, inaccessible
or corrupt EDB database files and transform the same into Outlook PST. You just try the free trial version and get the results:
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Jean

Hello All,
I have 2 EDB files on my exchange server which is no longer active its been decommissioned and the EDB mailbox is dismounted,
I would like to recover few emails/mail boxes from the EDB file and am not able to find any free tool which can help me in recovering the emails,
1. How to recover the mailboxes from the decommissioned exchange db
2.Tried using from free 3rd party tools which helped me view the mail boxes however am unable to convert or recover the emails using the demo/ trial version and cant think of buy/purchasing the application since its very expensive $299 and $399
I know there are lot of exchange gurus here who can help me with some workaround in recovering the mailboxes from the EBD or on how to convert the edb file to pst
Looking forward to get some help from exchange gurus
Thanks,
Jean
Jean
Hello,
There are so many third party software available in Web that can easily fix your Exchange Database issues, you can check out such a software from here http://www.exchangerecoverytools.org . By using this software (Kernel for Exchange Server Recovery),
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There are several ways of exchange server recovery.
Reset the computer account for the lost server.
Install the proper operating system and name the new server with the same name as the lost server. Recovery won't succeed if the server on which recovery is being performed doesn't
have the same name as the lost server.
Or try FREE DEMO of
Recovery Toolbox for Exchange Server http://www.exchangeserver.recoverytoolbox.com
Seriously? Can you recover data or repair the EDB file if it isn't there at all? JET_errInvalidDatabase says database isn't present!
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Get Your Exchange Powershell Tip of the Day from here

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http://www.stellarinfo.com/email-repair/exchange-bkf-repair.php
http://www.taskmanagerfix.com/exchange-bkf-to-pst.html
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http://www.exchangebkfrepair.com/
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Exchange DataBase is in Dirty ShutDown State

Hi ALL,
I am not able to mount the Data Base in Exchange Server 2010, I have run “Eseutil /mh” and confirm that Data base is in Dirty shutdown state.
Now, can any buddy tell me the step by step procedure to make it in Clean shutdown state.
Subs

HI Shubi,
Zahir have provided very good article to make clean shutdown your DB. Please try to run "eseutil /mk" swicth against check point file and see if any remain log files is not commited. In this case you can use "eseutil /r /e01" (Base file can be change) and
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http://smtp25.blogspot.com/2007/05/eseutil-in-exchange-2007-and-lost-log.html
Anil MCC 2011,ITIL V3,MCSA 2003,MCTS 2010, My Blog : http://messagingschool.wordpress.com

Have 10.4 recovery discs, but running on 10.5 and want to upgrade to 10.6?

Hi all!
1st qn: I have a mid-07 MB that came with OSX 10.4. Then last December the HDD crashed and i sent it for repair. The technician installed 10.5 onto my MB but i wasn't allowed to exchange my recovery discs to the 10.5 ones. I was told that in the event i needed to do a restore, my OSX 10.5 would be restored back to a 10.4 since my discs are 10.4 ones.
My question is if i go for the $29 upgrade pack, is it alright? I will be getting a new set of installation+recovery discs?
I'm a relatively new Mac user and never did an OS upgrade before, i'm not sure if each OS has its own set of installation+recovery discs...
2nd qn: if my ext HDD is already mac-formatted on my 10.5, after i back-up and upgrade to 10.6, the ext HDD doesn't have to be reformatted again and i should see what i last saw inside the ext HDD as per the backup?
Thanks for your patience in reading!!!

hollowman wrote:
Hi all!
1st qn: I have a mid-07 MB that came with OSX 10.4. Then last December the HDD crashed and i sent it for repair. The technician installed 10.5 onto my MB but i wasn't allowed to exchange my recovery discs to the 10.5 ones. I was told that in the event i needed to do a restore, my OSX 10.5 would be restored back to a 10.4 since my discs are 10.4 ones.
the technician only meant that if you bring your mac in for repairs to the apple store and THEY need to restore it they will put 10.4 back on it. that's just a policy, not a technical requirement. you yourself can do whatever you want and there is certainly no reason to ever put 10.4 back on your mac now.
My question is if i go for the $29 upgrade pack, is it alright?
oops, misread your first post. I would think it's not all right actually. 10.5 was put on your computer by mistake. you need to own a 10.5 install disk to run it legally.
I will be getting a new set of installation+recovery discs?
yes. it's just one installation disk. you only got two with the new computer because it includes ilife and didn't fit on one disk.
I'm a relatively new Mac user and never did an OS upgrade before, i'm not sure if each OS has its own set of installation+recovery discs...
yes.
2nd qn: if my ext HDD is already mac-formatted on my 10.5, after i back-up and upgrade to 10.6, the ext HDD doesn't have to be reformatted again and i should see what i last saw inside the ext HDD as per the backup?
of course.
Thanks for your patience in reading!!!
Message was edited by: V.K.

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