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Exchange server issues - cant mount store on server rebuild

I had an Exchange server that got infected with a virus.  The virus was removed, but destroyed the server.  I was able to start up the server and move most of the mailbox within the store.  there were a few that I was not able to move because there were errors within them and the move kept erroring out.  I made a backup of the pst file from Outlook for each of these mailboxes.

The setup that I have is 2 Exchange servers.  they are in a RPC setup and one front end and one back end server.  The backend server is the one that went down.  

Now that I have rebuilt the server, I am having problems getting it to run properly. I am not able to mount the mailbox or public folder store on the backend server.

I am getting a bunch of errors in the application log as follows:

Event ID 494: nformation Store (3004) First Storage Group: Database recovery failed with error -1216 because it encountered references to a database, 'C:\Program Files\Exchsrvr\mdbdata\pub1.edb', which is no longer present. The database was not brought to a Clean Shutdown state before it was removed (or possibly moved or renamed). The database engine will not permit recovery to complete for this instance until the missing database is re-instated. If the database is truly no longer available and no longer required, procedures for recovering from this error are available in the Microsoft Knowledge Base or by following the "more information" link at the bottom of this message.

Event ID:454
Information Store (3004) First Storage Group: Database recovery/restore failed with unexpected error -1216.

Event ID: 9518
Error 0xfffffb40 starting Storage Group /DC=com/DC=ccsigroup/CN=Configuration/CN=Services/CN=Microsoft Exchange/CN=CCSI Group/CN=Administrative Groups/CN=First Administrative Group/CN=Servers/CN=CCSI-EXCHNG-2K3/CN=InformationStore/CN=First Storage Group on the Microsoft Exchange Information Store.
Storage Group - Initialization of Jet failed.

Evnet ID:9175
The MAPI call 'OpenMsgStore' failed with the following error:
The Microsoft Exchange Server computer is not available.  Either there are network problems or the Microsoft Exchange Server computer is down for maintenance.
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0526-00000000

I am a little overwhelmed with where to start, as this looks like an issue that I caused myself with not being able to properly remove Exchange from the domain before rebuilding the server.  Now I am not sure how to mount the store without damaging the mailboxes that I moved to the front end server.  Any ideas on where to start?
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1 Solution
ryan80Author Commented:
Ok, so essentially I hosed myself by not keeping a copy of the database from the old server (I believe that I do have a backup though somewhere).  The Exchange environment that I have is very small and I dont mind having to start from the begining if it is the easiest way.  

Can I just make a .pst from the mailboxes that are on the front end server and then remove both Exchange servers?  then reinstall them from scratch?

or is there an easier way to fix this install?
If the clients are using outlook 2003 and are configured Cache mode - You can extract mails in PST in offline mode.

I assume only backend server is failed and FE is working fine - In that case, install backend server using /disasterrecovery switch and mount stores blank - this will create blank database and should be able to allow clients to login

NOTE: Very important to take PST of all the outlook clients before bringing the new server online, as once the new server is up, outlook will sync and will delete all the emails available in cache mode

Let me know if I have not understood your issue correctly
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ryan80Author Commented:
Ok, i have a backup PST of all the data using the cached mode.  so I will go ahead and reinstall the backend server with the disaster recovery.
Ok few things to note:

1) Make sure Server name is reset at AD
2) Make sure the server name, IP address & Drive letters are similar to the old machine
3) Make sure pre-requisites are installed
NOTE: You can follow the above article for the steps mentioned

After completing the above steps, Now install Exchange using disasterrecovery switch. You should also install SP using the same switch

Once exchange is installed, You can mount the stores which will popup a warning message for creating blank database - Click OK

Once stores are mounted, users should able to login to outlook. If everything goes fine - you can import PSTs back into users mailboxes

ryan80Author Commented:
Thanks for the help.  I figured out how to load a blank store and it now seems to be up and running.
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