I am getting ready to upgrade my Exchange server from sp1 to sp3. I cannot find any details on how to perform this upgrade or preparations I need to make prior to performing the upgrade. I saw references to CU (cumulative updates),
and I found references saying you can upgrade from sp1 to sp3 directly as there are no database schema updates made. It appears to be straight forward from what I can see, it's what I can't see that makes me nervous. I'd like to perform
this upgrade this weekend. Is there anything I need to be aware of before perfroming this service pack install? Thanks for any help.
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