It's been discovered recently when some users search email in their Inbox, only emails beyond two weeks are found - all email between the time the search is executed to two weeks back isn't available. At times no results are found. This behavior occurs in Outlook and in OWA. What I find bizarre is the Content Index State shows healthy on all database copies. It seems the basic consensus, when researching the problem on the net, is to update the catalog on each database copy - which I intend to do this week. However, in the interim, can anyone offer any troubleshooting steps bearing in mind the information provided above?
Also, I'm seeing MSExchange Search Indexer events with ID 118. The trouble here is this - the referenced database copies in these events aren't correlated with the users reporting the problem.