![]() #Next we need to make sure the machine has a primary DNS Suffix New-itemproperty -path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System -Name LocalAccountTokenFilterPolicy -Value 1 #Next we have to set the LocalAccountTokenFilterPolicy in the registry since we are not using a built-in account PasswordNeverExpires -UserMayNotChangePasswordĪdd-LocalGroupMember -Group "Users" -Member "WSFC"Īdd-LocalGroupMember -Group "Administrators" -Member "WSFC" Description "Used for Domain Independent Cluster" ` #The account is required to be in the local Adminstrators group You will need to run this on each replica you plan to add to your Availability Group.Ĭluster Setup #First we have to create a local user with the same name and password on each node. You should test this code prior to using it and you assume all responsibility as it is only provided for demonstration purposes. Today is your lucky day.here is a video walk through! CodeĪll of the code below is what I used in the above video in my test environment. Windows Failover Clustering Feature must be installedīy now you want to know how to setup and configure this coolness.This only needs to be done when using a non-builtin local administrator account.We need to set the LocalAccountTokenFilterPolicy in the registry.The local accounts need to be members of the local administrators group.We need local accounts on each node that have identical names and passwords.We do have a few pre-requisites that must be met prior to creating the cluster. Even if the domain was trusted and within the same forest, this would not work.ĭomain ADomain BWorkgroup AWorkgroup B Node 1 Remember that prior to this enhancement, nodes in a cluster had to be in the same domain. The assumption is that the domains are in completely separate forests and there are no domain trusts in place. Note that for anything where we are joined to two different domains, we mean complete autonomy. ![]() Below is a chart with the different combinations. You can have nodes that are not part of a domain at all, or some that are, or some that are joined to completely different domains. There are several combinations you can have in this configuration. Since the magic is really in Windows and not in SQL Server, you are supported with SQL 2014 since it is supported on Windows Server 2016. That is only because SQL Server 2016 was current when Windows 2016 released. In other posts and documentation you will see SQL Server 2016 as the requirement. So what about SQL Server? The requirement here is SQL Server 2014 through 2017. ![]() If you build or support SQL Server AlwaysOn Failover Cluster Instances or SQL Server AlwaysOn Availability Groups, you should be keeping up with Windows Server and the clustering feature. There is some really cool stuff coming in Windows that is directly applicable to clusters. If you are not part of the Windows Insider program, you should check it out. The keen observer might have caught that "or above" I slipped into that sentence. First we need Windows and the requirement is Windows Server 2016 or above. Okay, now that you have had time to calm down from all the awesomeness, let's talk about the requirements. It's like SQL is an awesome Ninja Cat riding on a magic unicorn! Why? All the glory belongs to Windows since that is where the magic resides. First published on MSDN on What is a Domain Independent Cluster?ĭid you know that you can have a Windows cluster that is a domain independent cluster and run a SQL Server Availability Group on top of it? The technology has been around for a while, but a lot of DBAs are not aware of it.
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