troubleshooting Question

Exchange 2013 CU3 to CU15 Upgrade

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MaurizioSchmidtFlag for Germany asked on
ExchangeHyper-V* DAGEmail ServersWindows Server 2012
13 Comments5 Solutions396 ViewsLast Modified:
Hi, we have to upgrade 2 Exchange 2013 CU3 Server to CU15 ( DAG activated ) they both run as virtual machines on different hyper-v servers.
what do we have to prepare to do this ?
how is the procedure ( Step by step )
and what should we do in advance if we run in a disaster ?

i learned that an CU installation will completely remove the exchange installation, what does that mean to the existing exchange settings ?
what does that mean to the mailboxes etc ?
Tim Edwards
Manager of Information Technology & Office Administration

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