Sync identities with Microsoft Identity Manager

Identity Transfer

Setting up High Availability

As an admin, one question that you need to answer is how to handle high availability. The same applies to the MIM synchronization service. After all, this only synchronizes every few hours (depending on scheduling). If the server fails, a new one is quickly installed, probably between two cycles.

In scenarios where high availability is required, you might prefer a to deploy a second server, on which MIM is installed, in parallel. If you let it run permanently, as a virtual machine with up-to-date patches, but with the FIM synchronization service stopped, it can immediately jump into the breach in the event of a failure. The prerequisite for this is a central SQL server, which is not affected by the failure of the first MIM server, and the file with the encryption keys that was created at setup. Using miisactivate.exe, this server's ID is then registered in the SQL database as the current server. The important thing here is to be sure the first server really is no longer running, and then you can proceed with the synchronization.


The possibilities offered by the MIM synchronization service are often underestimated. In the shadow of Azure AD Connect, which "only" offers synchronization with the cloud, MIM offers unforeseen possibilities for keeping a variety of sources in sync, including data transformation. I have only looked at the MA for AD, but it does not always have to be a directory service. Take the time and experiment in a test environment with the MAs for PowerShell or other MAs. This will certainly result in ideas for everyday administrative practice that can make your work easier.

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy ADMIN Magazine

Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Monitor Active Directory with Azure AD Connect Health
    Microsoft cloud service Azure Active Directory Connect Health supports monitoring of Active Directory, especially in large and distributed environments, but the tool is also useful for monitoring hybrid landscapes using Azure Active Directory.
  • Azure AD and AD Domain Services for SMEs
    Azure Active Directory Domain Services is a Microsoft product, distinct from Active Directory and Azure Active Directory, that offers centralized directory services in the cloud in place of an often convoluted on-premises operation.
  • Private cloud with Microsoft Azure Stack
    Azure Stack is an Azure extension that implements an on-premises data center for consistent hybrid cloud deployments.
  • Manage user accounts with MS Entra lifecycle workflows
    Microsoft Entra unites key identity technologies, resulting in a centralized management tool for Azure Active Directory. We look at how MS Entra works in conjunction with a local Active Directory.
  • The Azure Arc multicloud and on-premises management platform
    The Azure Arc cloud service supports centralized management of Windows and Linux servers, Kubernetes clusters, and SQL servers that are not themselves running in Azure, extending Azure management capabilities to servers in traditional data centers or any other cloud environment. We show you how to get Azure Arc up and running and look at its key features.
comments powered by Disqus
Subscribe to our ADMIN Newsletters
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs

Support Our Work

ADMIN content is made possible with support from readers like you. Please consider contributing when you've found an article to be beneficial.

Learn More”>


		<div class=