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SeaSenorFlag for United States of America

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Exchange 2010 to Office 365 Cutover Migration - Questions

Hi Experts,

I am preparing to cutover.

I have some questions...but first here is my set up:

2 exchange servers in DAG  and  Casarray...  no load balancing.
both servers hold all roles. CAS, HUB, Mailbox
Exchange 2010 sp3 and Windows Server 2008 R2 on all machines involved.
One database - approx. 19GB
135 Users
no public folders
Single Forest and Domain
I have a barracuda spam filter.

I will not be using AD FS or DirSync.
I am going to require them to sign in separately to Office 365 from the local network.

First questions.... (more to come)

Is keeping it totally separate the best idea? .. or should I consider DirSync for other reasons (besides Same Sign On) ?

My users are in both mail enabled security groups and distribution groups.
How will the cutover affect this?
Will it convert the mail enabled security groups to dist. groups?

thanks in advance...
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mijared
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ok.. I think I understand what you are saying.

although, I am not concerned with Dirsync. They can sync their passwords manually every few months.
Also, if I understand, I would have to disable dirsync for the cutover anyway, so I'll have the option on setting it up later after the cutover.

My main focus is a smooth transition, and knowing exactly what steps to take with my set up.
Also, if I understand, I would have to disable dirsync for the cutover anyway, so I'll have the option on setting it up later after the cutover.

What are you currently using DirSync for?
Everything you need to know is in this article:

http://help.outlook.com/ms.exch.ecp.emailmigrationwizardexchangelearnmore.aspx

The process goes over the GAL and migrates everything that is visible there. Here is also another article that explicitly lists what is migrated:

http://help.outlook.com/en-us/140/hh553234.aspx

Dirsync will certainly help you manage the users after the migration, and password sync will help you reduce the workload after the migration.

Here are also the requirements for synchronizing groups:

http://support.microsoft.com/kb/2256198#How
@diggisaur... I'm not currently using it. Just my understanding that if I set it up, I would have to disable it anyway to do the cutover. So after the cutover, I will have the option of whether or not to use it.

This article made me wonder if I should use it, hence part of the reason I questioned it:

http://blogs.dirteam.com/blogs/sanderberkouwer/archive/2013/07/12/five-things-you-need-to-know-about-using-dirsync-with-password-sync.aspx

@vasilcho... your comment:
"Dirsync will certainly help you manage the users after the migration, and password sync will help you reduce the workload after the migration"

I understand somewhat, but can you expand on that please? In what ways will it help manage users?
And according to the article, the password thing may be "6 one, half a dozen the other" in regards to password convenience and the administrators workload.

thanks to all so far.

Another question:  should I break the DAG and CAS array prior to the cutover?  What would be the pros/cons ?
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again.. thanks.

Aside from Dirsync, should I leave the DAG and CAS array or should I remove them prior to the cutover?

Once the cutover migration has initially replicated, I should have enough redundancy (at least in respect to DAG).... to keep only one mailbox server. CAS would be a benefit until the cutover is completed and the batch removed.

thoughts on that?