Modern browsers will automatically failover if you have round-robin DNS implemented. I think that patch is only present in Outlook 2013.
So… you have a chance of losing about half your Outlook users using prior versions of Outlook. From: [email protected] [mailto:[email protected]] On Behalf Of Todd Lemmiksoo Sent: Friday, April 3, 2015 10:31 AM To: [email protected] Subject: Re: [Exchange] Exchange 2013 server maintenance question NO, no LB On Fri, Apr 3, 2015 at 9:01 AM, Michael B. Smith <[email protected]<mailto:[email protected]>> wrote: Is there a LB in front of the 2013 servers? From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Todd Lemmiksoo Sent: Friday, April 3, 2015 8:55 AM To: [email protected]<mailto:[email protected]> Subject: [Exchange] Exchange 2013 server maintenance question We have a hybird Exchange setup with two Exchange 2013 CAS/Mailbox servers fronting our Exchange 2010 CAS servers with two Exchange 2010 Mailbox servers (DAG). I have a small pilot group in O365, no mailboxes on the Exchange 2013 servers remaining mailboxes are on the 2010 DAG. When I put one of the Exchange 2013 CAS/Mailbox servers into maintenance mode and reboot the server; what impact will the users experience in Outlook or OWA? -- T. Todd Lemmiksoo -- T. Todd Lemmiksoo
