Have you ever done it before? How much data do you need to move? How big is your pipe? What is the current version of Office deployed? Do you have ADFS already deployed and configured? Do you know what permissions need to look like? How many people have DA/OrgAdmin in the local organization and how many will have it in O365? Have you federated with MSFT yet?
Lots and lots of questions to be answered before you can apply a good time estimate. Presuming the client is doing their own move requests (so I don't have to sit there and watch and wait for them) but I'm completing them (to fix errors), in an environment where the infrastructure is in good condition and there is a strong corporate sponsor, probably 3-4 man weeks. On the other hand, I've got a 15000 seat deployment that has gotten mired down in politics, we've spent 6 calendar months (1.5 months of my time) and I'd estimate we are only about a third of the way there - for planning. If they weren't such a good client, I'd fire them and move on... (I don't do well with politics.) From: [email protected] [mailto:[email protected]] On Behalf Of Jesse Rink Sent: Wednesday, August 24, 2016 1:54 PM To: [email protected] Subject: Re: [NTSysADM] Office 365 migrations Out of curiosity, start to finish, how many service-hours did it take you to do 600 users, start to finish, including project planning, etc.? Thanks for Patching tip with Office. Jesse Rink Website<http://www.sourceonetechnology.com/> | Blog<http://www.sourceonetechnology.com/blog/> | LinkedIn<https://www.linkedin.com/in/jesse-rink> | Twitter<https://twitter.com/SourceOne_WI> ________________________________ From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> on behalf of Jonathan Raper <[email protected]<mailto:[email protected]>> Sent: Wednesday, August 24, 2016 11:39 AM To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] Office 365 migrations +1 for O365 for IT Pros: http://exchangeserverpro.com/ebooks/office-365-for-it-pros/ The authors know their stuff. I follow them on Twitter and they've responded to a couple of questions I've thrown at them. I actually completed a hybrid migration from Exchange 2007 to O365 last year. We presently have right at 600 users in O365. Let me know what questions you have and I'll do my best to answer. Basic overview... Get an O365 tenant setup Figure out your certificate Add/federate domain to O365 Setup Azure AD Connect to sync on-premises objects to O365 Setup ADFS for true Single Sign On (not the same as Same Sign On) Spin up one (or more) hybrid server (in our case, two 2013 servers) Setup one or more migration endpoints (in our case, we used the hybrid servers, plus one additional 2013 server - that we decommissioned once the users were migrated) Migrate some test mailboxes back and forth Migrate a batch of test users Perform full migration (maximum batch size is dependent upon speed/quality of internet connection and number of migration end points) Decommission all but the hybrid servers - you'll need the hybrid servers in order to be able to fully manage the users' mailboxes Somewhere along the way you'll need to validate that everyone has a supported version of Outlook, and that all systems are FULLY patched with windows and Office updates. This WILL bite you in the rear if you don't make certain that Office is fully patched. Jonathan From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Todd Lemmiksoo Sent: Wednesday, August 24, 2016 10:18 AM To: [email protected]<mailto:[email protected]> Subject: Re: [NTSysADM] Office 365 migrations Office 365 for IT Pros over at ExchangeServer Pro On Wed, Aug 24, 2016 at 8:17 AM, Jesse Rink <[email protected]<mailto:[email protected]>> wrote: Does anyone know of any really good documentation or planning guide for mid-sized scale Office 365 migrations (roughly 300-600 users)? I know Microsoft has some guides available (https://support.office.com/en-us/article/Deployment-planning-checklist-for-Office-365-5fa4f6ef-35ad-4840-91c1-4834df3df5a0?ui=en-US&rs=en-US&ad=US ) but I'm curious if anyone knows of other guides or EXAMPLES that are worthwhile.... Do we have anyone on the list who has gone through and performed any migrations of that size that can provide input? I have one upcoming and it's going to be very important that the entire migration is Planned, Staged, Tested, Piloted, Documented, etc. Jesse Rink Website<http://www.sourceonetechnology.com/> | Blog<http://www.sourceonetechnology.com/blog/> | LinkedIn<https://www.linkedin.com/in/jesse-rink> | Twitter<https://twitter.com/SourceOne_WI> -- T. Todd Lemmiksoo 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.

