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Preparing Migration 8.14 - System Requirements and Access Rights

Migration Manager Console Migration to Microsoft Office 365 License Server Migration Manager Database Servers Migration Manager Agent Servers Statistics Portal Server Resource Updating Manager Resource Updating Wizards Processed Platforms Additional Environment Security Configuration Ports Used by General Migration Manager Components Ports Used by Migration Manager for Exchange Components Ports Used by Migration Manager for Active Directory Components Ports Used by Resource Updating Manager Accounts Required for Migration Manager Operation Accounts Used by the Directory Synchronization Agent Source Accounts Used by Migration Manager for Exchange Agents Target Accounts Used by Migration Manager for Exchange Agents Agent Host Account Used by Legacy Migration Manager for Exchange Agents Agent Host Account Used by Migration Agent for Exchange (MAgE) Accounts Used for Migrating to Microsoft Office 365 Accounts Used by RUM Agent Service Accounts Used by RUM Controller Service Account Used by Statistics Collection Agent Service Accounts Used by Statistics Portal Accounts Accounts and Rights Required for Active Directory Migration Tasks Accounts and Rights Required for Exchange Migration Tasks Using the Exchange Processing Wizard with Exchange 2010 or later Appendix. How to Set the Required Permissions for Active Directory Migration

License Server

The computer where Migration Console is installed also usually hosts the Migration Manager license server. The license server depends on the Remote Registry service. Please make sure that the Remote Registry service startup type is set to Automatic on the license server computer. On Windows 7, Automatic is not the default startup type for this service.

Migration Manager Database Servers

Active Directory Lightweight Directory Services Server

This server is required to store the migration project information.

Requirement Details
Platform

One of the following:

  • Intel x86
  • AMD 64
  • Intel EM64T
Operating System

For ADAM (supported in upgrade scenario only):

  • Microsoft Windows Server 2003 Service Pack 1 or higher (x86 edition)
  • Microsoft Windows Server 2003 Service Pack 1 or higher (x64 edition)

For AD LDS:

  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2008 Service Pack 1 or higher (x86 edition)
  • Microsoft Windows Server 2008 Service Pack 1 or higher (x64 edition)
  • Microsoft Windows Server 2008 R2 Service Pack 1 or higher
  • Microsoft Windows 7 Service Pack 1 or higher (x86 edition)
  • Microsoft Windows 7 Service Pack 1 or higher (x64 edition)
Additional Software

Active Directory Application Mode (ADAM) or Active Directory Lightweight Directory Services (AD LDS) instance running on the server.

 

NOTE: You can install AD LDS from the Redist\AD LDS folder on the Migration Manager CD.

Migration Manager for Exchange Database Server

Supported SQL Servers

Migration Manager can work with the following Microsoft SQL server versions:

  • Microsoft SQL Server 2008
  • Microsoft SQL Server 2008 R2
  • Microsoft SQL Server 2012
  • Microsoft SQL Server 2014
  • Microsoft SQL Server 2016
  • Microsoft SQL Server 2017
  • Microsoft SQL Server 2019

IMPORTANT: For environments where the TLS version 1.2 is the only enabled for Migration Manager for Exchange Database Server, the following additional software is required:

Microsoft ODBC Driver for SQL Server, version 17, on all computers running Migration Manager console and on Statistics Collection Agent host. Required version of ODBC Driver for SQL Server can be downloaded from Microsoft Download Center.

Processor Requirements

A processor for the database server must be an Intel® Xeon® E5-2650 v2 or a similar-performance processor.

Number of cores for the processor can be estimated using the following formula:

[Number of cores] = 2 + (([Mail agents count] + [Calendar agents count]) x 0.03)

Important:

  • The minimum number of cores is 4.
  • This formula estimates number cores for physical processors. Required number of cores for virtual processors may need to be higher.

The following table contains recommended number of cores for migrations with different parameters.

  Mail agents Calendar agents Number of cores
Small migration 10 10 4
Medium migration 100 100 8
Large migration 250 250 17
Extra large migration 500 500 32

Important: Ensure that SQL Server Edition on the database server supports required number of cores.

Memory Requirements

To estimate the amount of RAM required for the database server, use the following formula:

[Amount of RAM] = ([Total number of mailboxes] x [Average number of messages in a mailbox] * 1.28) / 10000000

Important: The minimum amount of RAM is 8 GB.

The following table contains required amount of RAM for migrations with different parameters.

  Number of mailboxes Average number of messages RAM Required
Small migration 1,000 20,000 8 GB
Medium migration 30,000 16,000 64 GB
Large migration 100,000 5,000 64 GB
Extra large migration 500,000 2,000 128 GB

Important: Ensure that operating system on the database server supports required amount of RAM.

Disk Space Requirements

Disk space required to store SQL database produced by Migration Manager for Exchange depends on a type of migration you plan to perform.

Migration to Microsoft Office 365 or Microsoft Exchange 2013/2016/2019

If you migrate to Microsoft Office 365 or Microsoft Exchange 2013/2016/2019 by means of Migration Agent for Exchange (MAgE), then to estimate the disk space that SQL database will take during the course of migration, use the following formula:

[SQL database size] = [Total number of mailboxes] x [Average number of messages in a mailbox] x 1024 bytes [Size of information for single message] x 1.05 [Additional 5% of size to store error messages]

For a sample migration that involves

  • 100 mailboxes
  • Around 30,000 messages per each mailbox

The resulting database size is calculated as follows:

[SQL database size] = 100 mailboxes x 30,000 messages x 1024 x 1.05 = 3,225,600,000 bytes ≈ 3GB

TIP: To calculate total number of mailboxes and number of messages within them, use Quest MessageStats, or refer to the corresponding Microsoft documentation.

Important: If you plan to use express edition of Microsoft SQL Server, consider that database size may eventually exceed the allowed size limit. That limit is 4GB for SQL Server versions prior to 2008 R2 and 10GB for version 2008 R2 or later. For detailed information on differences between SQL Server editions, refer to the corresponding Microsoft documentation.

Other types of migration

If you are plan to perform any other type of migration supported by Migration Manager for Exchange, such as migration with legacy agents or native mailbox move, the database size does not exceed 4GB. Therefore any database servers stated above can be used as Migration Manager for Exchange Database Server including express editions.

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