| Event Id | 508 |
| Source | ESE |
| Description | Name (id) nameA request to write to the file "file name" at offset number for number bytes succeeded, but took an abnormally long time (number seconds) to be serviced by the OS. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem. |
| Event Information | According to Microsoft: EXPLANATION: This Warning event is logged when the Exchange database engine tries to write to the named file and encounters a delayed response from the operating system in performing that write operation. This is a warning, not an error, because the operation eventually finishes, although it is slow. This might indicate a hardware problem, probably with the disk controller, a disk, or other storage component. USER ACTION: Because this event typically indicates a problem with your disk subsystem or other server hardware, you should carefully examine the performance of the hardware in your Exchange server environment. If available, run hardware diagnostics provided by the server manufacturer. If there are specific tests available to test the disk subsystem, run those tests also. Running these hardware tests may help you discover the cause of the performance bottleneck. If the server uses a SAN device, make sure that the SAN has been configured correctly. |
| Reference Links | Exchange (ESE) |
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