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Updating Exchange Server 2010 SP2 into SP3 RU 7 with no DAG ?

Posted on 2014-10-19
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Last Modified: 2014-10-26
Hi People,

So... what is the best-suggested way to perform patching or upgrade to SP3 CU7 of the Exchange Server 2010 SP2 (2x MBX Server no DAG) with minimal down time to email services?

The current Exchange Server 2010 SP2 setup is as follows:
2x mailbox standalone no DAG
2x HT-CAS server configured with Windows NLB, SMTP email and outlook configured using Virtual NLB name.

Thanks.
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tshearon earned 500 total points
ID: 40391772
Since you have no DAG you are going to have mailbox down time. You should not have mail flow disruption however since you have multiple hub roles. Upgrade to SP3 starting  with the CAS roles first, then the HUB roles (unless they are already on the same servers with the CAS), then the mailbox. Then update to RU7 in the same order.
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by:Senior IT System Engineer
ID: 40391780
Yes, the HT/CAS are in the same box.
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by:tshearon
tshearon earned 500 total points
ID: 40391797
So then upgrade to sp3 on the CAS/hubs one at a time then the mailboxes one at a time ensuring each are up before you start the other. Then do the same with RU7.
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by:Senior IT System Engineer
ID: 40399384
ok, so what could go wrong when you implement the SP3 upgrade or RU patch ?

have you done it before or is there any caveats that I need to be aware of  ?
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