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Ok so, my plan is to make sure that all the databases are mounted and active in the primary server, then patch the passive after putting it in maintenance mode, then move the databases to the passive and patch the primary , is that ok?
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Ok so, my plan is to make sure that all the databases are mounted and active in the primary server, then patch the passive after putting it in maintenance mode, then move the databases to the passive and patch the primary , is that ok?

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Hi All<br />
&nbsp;Im planning to migrate my Two exchange 2013 CU3 in DAG to CU 7, I plan to start in the passive server as its recommended my question is can I upgrade my passive server and keep it for 4 days before upgrading the active server,<br />
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Thanks
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Hi All
 Im planning to migrate my Two exchange 2013 CU3 in DAG to CU 7, I plan to start in the passive server as its recommended my question is can I upgrade my passive server and keep it for 4 days before upgrading the active server,


Thanks

upgrade exchange 2013 CU3 DAG to CU 7

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.