Got about 30 of these errors in a minute span. I did a quick search on google and response varies from running isnteg to this is not a critical error and can be ignored. Does anyone have any experience with these errors and whether it had any impact on Exchange? Event Type: Warning Event Source: MSExchangeIS Mailbox Store Event Category: General Event ID: 1025 Date: 4/11/2011 Time: 10:36:41 AM User: N/A Computer: MyComputer Description: An error occurred on database "First Storage Group\MBDB". Function name or description of problem: SLINK::EcUpdate Error: 0x8004010f

Hi pham0329, I would suggest you to run the Isinteg. Error event id 1025 http://social.technet.microsoft.com/forums/en-US/exchangesvrmonitoring/thread/e4073ae1-75d3-4be7-b1ed-95c1b5f545af/Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.