Exchange

I am going for roll up update from 15 to 19 on my CAS and mailbox server (exchange 2007)

A)I don't need to put exchange server on maintenance  mode
B) I have various other AD sites do I need to perform at same time
pramod1Asked:
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Scott CSenior Systems EnginerCommented:
You don't need to shut down anything.  Just install the update.

It will take care of everything.  It's a very automated process.

Do the CAS first then the MBX server.
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
Not sure if you posted a question or a statement... but...

Do you have a DAG?  Or just a single Mailbox Server?  If no DAG, then no Maintenance Mode.

I don't understand what you are asking for part B
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IvanSystem EngineerCommented:
Hi,

as far as I know, there is no maintenance mode in Exchange 2007.

As for installation, if you have just 1 CAS and 1 MBX, then you just need to install it on them, no need to do anything on other AD sites. Update is usually applied on CAS first, then on MBX.
If you have multiple Exchange, across sites, then update should be applied on Internet-facing Client Access servers first.

As always, it is good practice to do a full backup :)

Regards,
Ivan
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Scott CSenior Systems EnginerCommented:
Upgrade your servers in the following order:
1.Client Access servers (beginning with the internet-facing site)
2.Hub Transport and Edge Transport servers
3.Mailbox servers
4.Unified Messaging servers
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Adam BrownSr Solutions ArchitectCommented:
Exchange 2007 updates in a Cluster should be done on the passive node first. Then activate the passive node and update the (normally) active node. https://technet.microsoft.com/en-us/library/bb885043(v=exchg.80).aspx has instructions for failing over the Mailbox server.

If you don't have 2007 set up in a cluster, you will have to shut down the databases on each Exchange server when updating that mailbox server. Follow the order ScottCha gives when updating if you don't have multi-role servers.

The exchange servers in your environment do not need to all be the same update level to function. You can update them one at a time and the ones you are not updating will continue to operate until they are updated themselves.

There is no maintenance mode in Exchange 2007 and later. The Databases are dismounted during the update process, and if you have a Clustered Exchange environment, you have to initiate a failover to update the active node.
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pramod1Author Commented:
to adam and scott :

I have separate CAS (one server) and separate mailbox server , I don't have 2007 in cluster environment.

so if I want to install rollup update 19 do I need to shut down the storage groups ? or it will get dismounted on its own.
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Scott CSenior Systems EnginerCommented:
Glad I could help.
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