Hi Experts,

I have running a EXCH2013 DAG with 3 nodes.
I have one default DB for my users. How to prefere this DB when installing new users ?
The other DB are just for special persons.
Eprs_AdminSystem ArchitectAsked:
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Pavel NagaevLead email system administratorCommented:
1. Exchange choose mailbox for new user randomize.
2. You can exclude  database for new users distribution Set-MailboxDatabase -Identity "Mailbox Database 04" -IsExcludedFromProvisioning $true

With automatic mailbox distribution, Exchange looks at the mailbox databases in your organization, excludes databases that aren't suitable using criteria discussed later in this topic, and then randomly chooses a database where the mailbox should be located. This process randomly distributes mailboxes across all of the suitable mailbox databases in your organization.
Automatic distribution is used when you don't specify the Database parameter on the New-Mailbox and Enable-Mailbox cmdlets or the TargetDatabase parameter on the New-MoveRequest cmdlet.
from here https://technet.microsoft.com/en-us/library/ff477621(v=exchg.150).aspx

3. You can use scripts for add new users


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Eprs_AdminSystem ArchitectAuthor Commented:
is this change just possible via CMD ?
Can I do it via GUI too ?
Pavel NagaevLead email system administratorCommented:
not CMD, but PowerShell.

But it is simple
Here is a video http://www.netometer.com/blog/?p=1013

You can use database management scopes

You can use database management scopes to control which mailbox databases can be selected by automatic mailbox distribution. When you apply database scopes to an administrator, only the databases that match the defined database scope are available to the administrator. Because automatic mailbox distribution uses the context of the current user, it's also constrained by the database scopes applied to the administrator.
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