A lost flush on the active copy was detected by a passive database copy
Applies to: Operations Manager Management Pack for Exchange 2010
Topic Last Modified: 2011-09-12
The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.
To learn more about this alert, in Operations Manager, do one or more of the following:
From the Operations Console, double-click this alert, and then click the General tab. Review the description of the alert that includes the variables specific to your environment.
From the Operations Console, double-click this alert, and then click the Alert Context tab. Review the logged events that meet the criteria of this Operations Manager alert.
Details
Product Name |
Exchange |
Product Version |
14.0 (Exchange 2010) |
Event ID |
108 |
Event Source |
ExchangeStoreDB |
Category |
KHI |
Alert Type |
Error |
Rule Path |
Microsoft Exchange Server/Exchange 2010/Mailbox/Database Copy Corruption |
Rule Name |
A lost flush on the active copy was detected by a passive database copy. |
Explanation
This Error event indicates that the database pages checksum matches, but the data on the pages is wrong logically. This can occur when the Extensible Storage Engine (ESE) tries to write a database page, but the data is either not written to the disk or is written to the wrong location on the disk. This problem occurs even though the operating system returns a success message. This situation is referred to as a lost flush and can cause a loss of data. To help avoid lost flushes, ESE includes a lost flush-detection mechanism in the database together with a page-patching feature (single page restore).
User Action
No user action is required.
For More Information
If you are not already doing so, consider running the Exchange tools, which have been created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues and improve mail flow. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.