My 2013 installation is much simpler, so I cannot speak from personal experience, however Paul Cunningham can:
http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/ down in the comments you will see.... Jeff Brown says January 23, 2015 at 3:08 am<http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/#comment-153299> Paul, you mention upgrading the Mailbox before the CAS. This is different from earlier versions of Exchange where you start at the CAS, then Hub, etc and mailbox last. Is there any official documentation on the server role order to install Exchange 2013 CUs? I'm having trouble finding any. Thanks! Reply<http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/?replytocom=153299#respond> * [http://1.gravatar.com/avatar/452ce4360be6c84c5329ab4d9e35d595?s=96&d=mm&r=g] Paul Cunningham<http://exchangeserverpro.com/> says January 23, 2015 at 10:29 am<http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/#comment-153315> Yes it is different. No I can't find any "official" source for that online. Reply<http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/?replytocom=153315#respond> o [http://1.gravatar.com/avatar/d1772f1c8b16dec3e09fe80be6892dfb?s=96&d=mm&r=g] Gareth Gudger says February 1, 2015 at 2:16 am<http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/#comment-153859> If you run the upgrade on a multi-role server, you will see that Setup always upgrades the Mailbox role before the CAS role. Hope this helps, Jonathan From: [email protected] [mailto:[email protected]] On Behalf Of John Matteson Sent: Tuesday, September 13, 2016 6:03 PM To: [email protected] Subject: [Exchange] Order of installation for Exchange 2013 CU Question for the group. I have a customer that is going to be installing Exchange 2013 CU13 soon. We're getting together documents and creating checksheets for the update. The customer insists that CU's get installed from "the outside in", meaning from the Edge Server towards the mailbox server. My memory says that you installed SP's and CU's in a different order: CAS, HUB, MAILBOX, EDGE. I can't find documentation that points to one, or the other, or really any order at all. So I'm asking the people who have a bit more experience with this. What say you? John Matteson. NOTE: This message and any attachments is intended solely for the use of the individual or entity to which it is addressed and may contain information that is non-public, proprietary, legally privileged, confidential, and/or exempt from disclosure. If you are not the intended recipient, you are hereby notified that any use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the original sender immediately by telephone or return email and destroy or delete this message along with any attachments immediately.
