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Exchange 2010 SP3 DAG upgrade

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Exchange 2010 SP3 DAG upgrade - 11.Jul.2013 3:19:09 PM   
doggatas

 

Posts: 3
Joined: 18.Jan.2010
Status: offline
Hi

I am wanting to upgrade our Exchange 2010 SP1 servers to Exchange 2010 SP3 inc. RU1

The primary environment consists of 1 CAS server, 1 HUB server and 1 MBX server.

The Disaster Recovery site consists of a multi-role server that houses all roles (CAS/HUB/MBX)

There is a DAG setup between the MBX servers, cross site. I have configured all the settings to disable auto failover of databases as the DAG is setup purely for DR not HA.

My query is, if when installing SP3 and RU1 I am happy for there to be down time in the primary site (i.e no Outlook access), do I need to run any of the DAG prep scripts? As a lot of what they do is already done to prevent auto failover.

My plan

Run ADPREP - wait for replication
Suspend the database copy

Complete the SP3 and RU1 updates at the DR site first as I am lead to believe SP1 and SP3 can coexist. I just won't be able to wont at DR site until prod is updated as once database are mounted on higher version they cannot be mounted on a lesser version.
Resume the database copies to ensure replication works

Backup CAS/HUB using Veeam
Test restore using Instant Recovery
Install SP3 and RU on CAS/HUB servers
Suspend Database copy
Shutdown MBX server and backup using Veeam
Test restore using Instant Recovery
Install SP3 and RU1 on MBX server
resume database copy
Complete post install testing (open mailbox, send mail, check free busy, etc...)
Thanks in advance

Cheers

David
Post #: 1

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