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Migration Manager for Exchange 8.14 - Target Exchange 2010 Environment Preparation (Legacy)

Target Exchange 2010 Environment Preparation
Preparation Overview Checking System Requirements Setting Up Accounts and Required Permissions Preparing the Target Exchange Environment for Exchange Migration Setting Up Connection with the Source Exchange Organization Using SMTP Connectors Appendix A: Exchange 2003 to Exchange 2010 Migration Restrictions

Creating Custom Throttling Policies

To prevent possible issues in an Exchange 2010 Service Pack 1 or later organization, you should create custom throttling policies, apply them to the Exchange Accounts and then restart the Microsoft Exchange Throttling Service.

To do this, run the following PowerShell commands for each Exchange Account:

New-ThrottlingPolicy <QMM_Exchange_Account_Throttling_Policy_Name>

Set-ThrottlingPolicy <QMM_Exchange_Account_Throttling_Policy_Name> -PowerShellMaxConcurrency <MaxConcurrency>

Set-ThrottlingPolicy <QMM_Exchange_Account_Throttling_Policy_Name> –EWSMaxConcurrency $null –EWSPercentTimeInAD $null –EWSPercentTimeinCAS $null –EWSPercentTimeInMailboxRPC $null –EWSMaxSubscriptions $null –EWSFastSearchTimeoutInSeconds $null –EWSFindCountLimit $null

Set-ThrottlingPolicyAssociation -Identity <QMM_Exchange_Account_Name> -ThrottlingPolicy <QMM_Exchange_Account_Throttling_Policy_Name>

Restart-Service -Name MSExchangeThrottling

where MaxConcurrency is the number of Migration Agent for Exchange (MAgE) instances simultaneously working with Exchange 2010 server, multiplied by the value of 5.

NOTE: To ensure stable operation of MAgE agents when working with Microsoft Exchange 2010, you should increase the number of permitted user connections. For that, change the value for the MaxSessionsPerUser parameter using the client throttling policies, as follows:

  1. On the computer that hosts the Microsoft Exchange CAS server, in %Program Files%\Microsoft\Exchange Server\V14\Bin, open the file in a text editor.
  2. Change the value of the MaxSessionsPerUser parameter to 100000.
  3. Save and close the file.
  4. Restart the Address Book service.


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