*** Problem Description ***

 

Failed to mount database 'Public Folder Database'.

 

Public Folder Database
Failed Error:
Exchange is unable to mount the database that you specified. Specified database:
HFSERVERSecond Storage GroupPublic Folder Database;
Error code: MapiExceptionADPropertyError: Unable to mount database.
(hr=0x80004005, ec=2418)

--------------------------------------------------------
Microsoft Exchange Warning
--------------------------------------------------------
The following warning(s) were reported while loading topology information:
get-PublicFolderDatabase Completed

Warning:
Object HFSERVERSecond Storage GroupPublic Folder Database has been corrupted and it is in an inconsistent state. The following validation errors have occurred:

Warning:
PublicFolderHierarchy is mandatory.

Warning:
PublicFolderHierarchy is mandatory.
--------------------------------------------------------
OK
--------------------------------------------------------

 

Then again the same error as above when we run the database recovery Managmenet againt the second storage.
---------------------------------------------------------------------------------
An error occurred while performing the first Isinteg run (Isinteg -s HFSERVER -fix -test alltests) on database (Public Folder Database).
Error message: The system cannot open the file
------------------------------------------------------------------------------------

*** Resolution ***

 

Steps to follow:

 

1) Ran Setup.com /prepareAD from the repair disc by browsing to
<dvd Drive>CMPNENTSExchange12Setup.com /prepareAD

 

2) Open Adsiedit.msc
CN=Public Folders,CN=Public folder Hierarchy,CN=First Administative Group,CN=Administrative Groups,CN=ORG Name,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=Domain,DC=COM

In the properties of the Public Folders verify that msExchPFTreeType = 1

 

3) Copy the DistingushedName Attribute or DN content of
CN=Public Folders,CN=folder Hierarchy,CN=First Administative Group,CN=Administrative Groups,CN=ORG Name,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=Domain,DC=COM

 

4) Browse to
CN=Public Folders Database,CN=Second Storage Group,CN=InforamtionStore
CN="Sever Name:,CN=Servers,CN=Exchange Administative Group,CN=Administrative Groups,CN=ORG Name,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=Domain,DC=COM

In the properties of the "Public Folder Database"Edit the msExchOwningPFtree paste the content copied from step 3.

 

5) Restart MsExchangeSA services