Event ID - 2124

Event Id2124
SourceMSExchangeMTA
DescriptionAn MTA database server error was encountered. The object data file caused an I/O error. Object ID: <id>. Operating system error: <error code>. File operation: <name>. File offset: <value>. Filename: <file name>. Referenced object: <object name> (00000000
Event InformationAccording to Microsoft:
CAUSE:
These problems can occur when the Dbserver.sch file that is included with Microsoft Exchange Server 5.0 is installed on your hard disk, even though you have applied Exchange Server 5.0 Service Pack 1 or Service Pack 2. This can occur for either of the following reasons:
When you applied Service Pack 1 or Service Pack 2, the Dbserver.sch file was not updated.
When you applied Service Pack 1 or Service Pack 2, the Dbserver.sch file was updated properly. However, after you applied Service Pack 1 or Service Pack 2, the Dbserver.sch file was replaced with the version of the file that is included with Exchange Server 5.0.
RESOLUTION:
To work around this problem, reapply Exchange Server 5.0 Service Pack 1 or Service Pack 2. If the problem still occurs, rename the Dbserver.sch file in the Exchsrvr\Mtadata folder on your hard disk, and then use one of the following methods to obtain a new copy of the file:
Copy the Dbserver.sch file from your Service Pack 1 or Service Pack 2 (depending on the Service Pack you have applied) compact disc or disks to the Exchsrvr\Mtadata folder on your hard disk.
Decompress the self-extracting Service Pack 1 or Service Pack 2 file that you downloaded from an online service (if you have not already done so), and then copy the Dbserver.sch file from the resulting Mtadata folder to the Exchsrvr\Mtadata folder on your hard disk. To decompress the Service Pack 1 or Service Pack 2 file, type <filename> -d at a command prompt, and then press ENTER.
Reference LinksMultiple MTA event IDs 2174, 2124, and 2143 are logged by Exchange 2003 Server
Multiple MTA event IDs 2175, 2124, and 2143 are logged by Exchange 2000 Server
XCON: MTA Stops Unexpectedly or Stops Transferring Messages

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