Exchange 2010 Missing emails after restoring C Drive

hi Experts,

Our Exchange server  crashed, so we had to restore C drive from our backup from 3 weeks ago.
Our Database and logs are sitting on D drive (please note that we didn't restore D drive. Just the C drive was restored).
Once we resorted C drive we lost all emails from Last 3 weeks.
I triple checked location of our Database and log files. They are definitely sitting on D drive.
I ran out of ideas. I checked Check files, log files  location in  D drive and Database location as well.
Can you please help me in resolving this issue?
LVL 1
ukitsmeAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Gregory MillerGeneral ManagerCommented:
If you restore the Exchange Databases, that only goes to the point of the last backup. Then you need to take all of the transaction logs and run a process on them I believe to rebatch the emails that were received since the logs were last backed up and purged. This will bring your mail database back to present.
Gregory MillerGeneral ManagerCommented:
Sorry, I missed the part where your DB was on D. I am not certain why that would cause your server to lose mail. Have you tried doing a repair on the ExchangeDB? possibly they have integrity issues that will bring back the mail, or at least allow it to be seen.
ukitsmeAuthor Commented:
yes we tried repairing it.
Get Blueprints for Increased Customer Retention

The IT Service Excellence Tool Kit has best practices to keep your clients happy and business booming. Inside, you’ll find everything you need to increase client satisfaction and retention, become more competitive, and increase your overall success.

Simon Butler (Sembee)ConsultantCommented:
You haven't said how exactly you repaired the server, as being three weeks old would tend to suggest that you have restored something that you shouldn't have done.

If the databases and logs are on another drive then there would be no need to restore any backup - just reinstall Exchange using the recovery options and then attach the existing databases.

I think your best option here is to contact Microsoft support and get them involved. My instinct is that you have restored incorrectly. If the logs are in place then you may be able to get Exchange to replay the logs, but you need to be very careful because if it is done wrong then you will lose everything - Microsoft support are the best people to assist here.

Simon.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ukitsmeAuthor Commented:
hi Simon,

We have restored Exchange many times. We never had this problem.

We got in touch with Microsoft they were not able to figure out why it happened in the first place but they helped us fix the issue.

Here is how we fixed it (not exactly fixing it, but sort of solution :) )
Create new database using command:
 New-MailboxDatabase -Recovery -Name ManagementRDB -Server <servername> -EdbFilePath "location" -LogFolderPath "location"
dismount live database
Run ESutil /mh for both old and new database  (just for checking status)
Verify log files of old database
eseutil /ml
Copy logs and DB from our backup to new location
Merge backup to recover database
eseutil /r e14 /l "<location>" /d "<location>" /a /i
run an eseutil /mh on the recovered DB to ensure Clean Shutdown
rename edb file to what ever name you want to change it to.
Mount both existing and recovered DB's
In Exch Management Shell:      Get-Mailbox -Database <old database name>| Restore-Mailbox -RecoveryDatabase <new database name>
ukitsmeAuthor Commented:
Thanks for your help
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.