Unable to retrieve information from Exchange 2010 Public Folder after remove server replication

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K

Kent Ng

Hi,

I have a problem to retrieve content information from Exchange 2010 Public Folder (after I manually remove all server replication on all public folder, including system public folder, using Exchange 2007 Public Folder management console).

My exchange environment setup as below:
I have 2 exchange server : ex2010 and ex2007 I have successfully migrated mailbox and public folder database from ex2007 to ex2010 I have changed ex2007 mailbox database point to ex2010 public folder (PF2010) as a default public folder. I forgot that I have already changed ex2007 default public folder to PF2010, so I manually remove all server replication on all public folders and each items using Public Folder Management Console on ex2007. After the deletion, I found that all my user (located on ex2010 server) was unable to connect Public Folder from Microsoft Outlook and OWA.

The way that I had tried:
I had tried to put back all server replication for all public folder (including system public folder). Then, I can access public folder now. But all my public folder (including public folder - calendar) are now empty. I used get-publicfolderitemstatistic, it listed all my public folders are now empty. However, my public folder database still more than 2GB, which I think all contents should still remain, but it might just cannot be read. I also tried http://www.vware.at/?p=169, but the problem still cannot be solve.

Any help will be appreciated.

Thanks.
Kent Ng
 
A

AndyD_ [MVP]

So all the folders are empty?

If so, you could try exfolders and look to see if any deleted items exist, if not, it sounds as if you never actually replicated items and you will need to do a restore from backup.

Get-PublicFolderStatistics will show item counts. ( In step 2 above, how exactly did you " migrate" the database?)
 
K

Kent Ng

Hi Andy,

These are the step that I use for my migration:
Install Exchange 2010 on new server with Windows Server 2008 SP2 installed. How Do I: Transitioning From Exchange 2007 to Exchange 2010 Part 2 ? How Do I: Transitioning From Exchange 2007 to Exchange 2010 Part 3 ? (until 2:30 minute) From the video, I should not remove the server from replication tab on ex2007. But, I did remove the server from replication tab on ex2007 server. And now, all my public folders show empty, but the public folder database itself is 2GB+. How can I retrieve back my data on public folder?

Thank you.

Kent Ng
 
K

Kent Ng

Hi Andy,

I have tried to open public folder database using ExFolders. Unfortunately I can't see any normal / deleted items.

If I never actually replicate items, how come my PF2010 has 2GB+?

Any idea?

Is there a way to re-replicate all contact from my previous ex2007 public folder database?

I try to create a new public folder on ex2010, but the server only allow to have one public folder. Is there anyway to temporary disconnect current public folder and mount a public folder backup database?

Thanks.

Kent Ng
 
J

James-Luo

Quote: “I should not remove the server from replication tab on ex2007. But, I did remove the server from replication tab on ex2007 server”

You have removed exchange 2010 public folder database from the replica list of all public folders? When you removed the exchange 2010 database, is there any other database still in the replica list?

Quote: “If I never actually replicate items, how come my PF2010 has 2GB+?”

The size could be white space, not exact data. You can perform an offline defragment against the public folder database, and see if the size would shrink

James Luo

 
K

Kent Ng

Hi James,

I think I have removed exchange 2010 public folder database from the replica list of all public folders. And when I removed the exchange 2010 database, there is no more other database still in the replica list. I would say the replica list is empty.

Is there anyway to retrieve / recover back exchange 2010 public folder database?

Any solution will be appreciate.

Thanks.

Kent Ng
 
J

James-Luo

If the replica list is empty, it means there"s no copy of public folder on any exchange server. The size of the current database would be the white space, you can use offline defragment to verify it

I would suggest you to restore the public folder database from the backup

James Luo

 
K

Kent Ng

Hi James,

I dont' have any backup for the exchange 2010 public folder database (since it is newly created), but I do have exchange 2007 public folder database backup (before & after the migration), would it help?

Can I replicate it again? From Exchange 2007 to Exchange 2010?

Thanks.

Kent Ng
 
K

Kent Ng

Hi James,

My Exchange 2010 public folder still have all logs, is it possible to repair / recover using these log files? (because I don't have any backup on Exchange 2010 public folder database).

Thanks.

Kent Ng
 
J

James-Luo

Yes, please restore the public folder database on the exchange 2007 and verify it

James Luo

 
K

Kent Ng

Hi James,

I am not sure how to restore public folder database on exchange 2007, can you guide me please?

I have a backup using NTBackup, should I just restore those files from C:\Program Files\Microsoft\Exchange Server\Mailbox\Second Storage Group\*.*

or I should restore from <ServerName>\Microsoft Information Store\Second Storage Group\*.*?

Thank you.

Kent Ng
 
K

Kent Ng

Restore is in progress, will let you know the result later. =)

Thanks James.

Kent Ng
 
K

Kent Ng

Hi James,

After restore exchange 2007 database, I can see there are 9000 items using Exchange 2007 Public Folder Management Console. But I can't open it from user on Exchange 2007 Server.

Error:

The public folder you're trying to access couldn't be found. For more information, contact technical support for your organization.

-----
Another scenerio is that if I " update hierarchy" then my public folder will become inaccessible. (Which mean I can saw 9000 items there, after this step, it become " Not available on this server" .

-----
if I have no more backup to use and i checked all my exchange 2010 public folder database logs are healthy. Is it possible to recover public folder database using log files only?

So that it can replay all the log files and to recreate the EDB file. Is it possible?

http://msexchangeguru.com/2009/07/12/exchange-database-recovery-using-eseutil-commands/

Thanks.

Kent Ng
 
K

Kent Ng

Hi,

Is there anyone know how to recover Public Folder database using database log file?

Thank you.

Kent Ng
 
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