Exchange 2010 Service Pack 3

Hi everyone,

We have Exchange 2010 in our environment. We are planning to go from SP1 to SP3 in a few weeks' time. I just wanted to know if any of you guys had any bad experiences from the upgrade ? Any problems which could not be solved or what were the major issues ? Please let me know so that we can prepare ourselves better.
Exchange UserSystems AdministratorAsked:
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Nick RhodeIT DirectorCommented:
I had no issues with going from SP1 to SP3.  It can sometimes take a little while but should go pretty smooth :)
Scott CSenior EngineerCommented:
Make sure you have a good backup.  You also need to make sure you don't have any "custom solutions" in place that took advantage of a weakness in SP1 that go fixed in SP3.

Also after you install SP3 make sure you also get the latest RU installed as well. I think its RU10 at this point.

Also the correct order is to install from the "outside in"....Edge, CAS, HUB, MBX.

And you want to upgrade all of each type before you move onto the next.

All Edge (if you have any), All CAS...etc.

If your machines are AIO then it's not an issue.

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Will SzymkowskiSenior Solution ArchitectCommented:
Service packs and RU (rollups) are cumulative which means they will have all of required updates from previous services packs and rollups. However you need to make sure that you are applying the services packs in the correct order for your Exchange servers.

Starting with CAS (internet facing) then proceed with other CAS servers in your domain. The Hub Transport, then Mailbox then Edge (if you have one).

It is important to follow this order to ensure that everything goes smoothly.

Below is the TechNet for this info in more detail.

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Will SzymkowskiSenior Solution ArchitectCommented:
Edge should be last. See link.

Roy BeneVP/Director - IT | ISOCommented:
Will is Spot on, as usual:

Also, one last tip; do be sure, if you have a DAG environment, that the mailbox copy of the database running your federation mailbox is not active on the server you are upgrading. The Rollup WILL Fail - but it will not fail cleanly. Just a warning. If you need a script to run in EMS to get a list of mailboxes on a specific database:

Get-Mailbox -Database "DatabaseName"
Will SzymkowskiSenior Solution ArchitectCommented:
Not to be critical but Scott's post is wrong based on the order that should be set for installing the SP and RU's. Also not sure why this was graded a B as well, as there was a lot of helpful information provided.

Scott CSenior EngineerCommented:
THanks for the correction.  You are indeed right in the order.
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