Log Name: Application Source: MSExchangeRepl Event ID: 2156 Task Category: Service Level: Error Keywords: Classic User: N/A Description: The log copier for database ' <database name> ' could not send a log file to server ' <target server which hold the passive copy> ' because an I/O error occurred while attempting to access file ' <database log file> ' on source server <the server which holds the active copy> . Error: The request could not be performed because of an I/O device error.After this error message is logged, you cannot move the database or copy a log file.
Note This problem may be caused by a hard disk issue. You can determine whether this problem is caused by a hard disk issue by checking the system event logs. If this problem is caused by a hard disk issue, change the hard disk and install the hotfix that is mentioned in the "Resolution" section.
For more information about Update Rollup 2 for Exchange 2010, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 980262 - Last Review: Mar 29, 2017 - Revision: 4