I Have Created Mailbox Database Using Power Shell and After I am Not able do the Mount the mailbox Database. Error code: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=-2147467259) . Error Message: Error 0x80004005 starting Storage Group /DC=local/DC=nagarjuna/CN=Configuration/CN=Services/CN=Microsoft Exchange/CN=First Organization/CN=Administrative Groups/CN=Exchange Administrative Group (FYDIBOHF23SPDLT)/CN=Servers/CN=WIN-EDA57JO7OFS/CN=InformationStore/CN=Fifeth Storage Group on the Microsoft Exchange Information Store. MDB failed to start.

Hi check this KB http://support.microsoft.com/kb/925825 do you have standard or enterprise version ?

Hi Did you try above KB? Dont forget restart the Information Store and try to mount again Cheers Zi Feng TechNet Community Support