Struggling to figure out reasons behind those "An unexpected error has occurred" messages in SharePoint 2010

We are in day 5 of using SP 2010 on our 4 server farm. The farm was created by taking our MOSS 2007 databases and attaching to our database.
We have had a variety of cases of users encountering the "An unexpected error has occurred". In perhaps 10% of the cases, we have found the correlation id in the logs - which are tracing using the default logging levels.
We have used the Merge-SPLogFile and get-splogeven cmdlets but get no records returned for the others.
They are not occurring frequently. But when they do, we don't have a lot to go on to figure out what is wrong.
I have read various other threads on the site. I have looked in all of the 14 hive logs on all 4 servers (which should not be necessary after having used merge-splogfile) but do not find the correlation anywhere. I have used uls viewer - still do not find
it.
This is a production system where users are making use of the system 24x7. I need to find things to try that do not take down the system.
Is there any way that increasing the verbosity of the logging might be requried so we can see these errors?

It truly depends on the error that occurs, but I would say that increasing your logging level would be the first place to start.
BE AWARE... Setting logging levels to Verbose WILL fill up drive space very quickly, so if your servers don't have much free drive space, you run the risk of crashing the server when it runs out of space... in the very least, server performance will grind
to very poor levels.
If you're not finding the correlation IDs, then upping the level might be the only way to get the messages. The best approach is to try and find a recreatable scenario. If you can recreate the error through UI actions, you can up logging levels
on an App server (to avoid impact on end users) and point directly to that App server (using HOSTS entries) in order to recreate the error. Once you've recreated the error, you can restore normal logging levels on the server again and then proceed to
parse the logs using ULSViewer in order to find the target correlation ID.
I trust that answers your question...
Thanks
C
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Message was edited by: [email protected]

[email protected] wrote:
I'm reluctant to post apple ID's in a public support forum, and would prefer to deal with this by private email. or phone.
Then contact Apple directly.
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There is no Apple presence here.

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Struggling to figure out reasons behind those "An unexpected error has occurred" messages in SharePoint 2010

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