Sometimes, when you try to start directory service on MS Exchange Server, following error message is displayed on your computer screen:
Could not start Microsoft Exchange Directory service on \\SERVERNAME Error 2140: An internal Windows NT error occurred
When preceding error message occurs, following events are recorded in the Application log:
Event ID: 109
MSExchangeDS (988) the database engine is replaying log file R:\LogFiles\DSAData\edb.log.
Event ID: 110
MSExchangeDS (988) the database engine has successfully completed recovery steps.
Event ID: 0
MSExchangeDS (988) -510
Event ID: 1166
Error -510 has occurred (internal ID 2030148). Contact Microsoft Technical Support for assistance.
Event ID: 1002
The Microsoft Exchange Server database (EDB) could not be initialized and returned error -510. Unrecoverable error, the directory can’t continue.
The error number -510 in the preceding events refers the JET_errLogWriteFail message. This error message generally occurs when the .log file gets damaged.
Following steps help you to resolve the specified error message:
eseutil /mh Dir.edb
In case, you do not want to manually perform the recovery process then use Kernel for Exchange Server repair software. While using the Exchange Server Recovery software, you just need to browse the location of the damaged .EDB file and the software will do the rest of the work. Kernel for Exchange Server is a professional Exchange repair and recovery software to rebuild corrupted EDB files. It helps you to repair .EDB file, which has been damaged due to various known and unknown reasons and recover data without any loss. EDB to PST converter software supports almost all versions of Microsoft Exchange Server ranging from Exchange Server 5.0 to Exchange Server 2016.