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You mean Active / Active __FAILOVER CLUSTER__ I guess. AFAIR, yes, you need AD to create a failover cluster.
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thanks <br />
<br />
i a correct in think if i had a Active / passive FAILOVER CLUSTER then I can use workgroup authentication ?
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I think in either case you need AD.
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Will i need to install Active directory services for an Active / Active load SQL balancing solution ?
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Will i need to install Active directory services for an Active / Active load SQL balancing solution ?

You mean Active / Active __FAILOVER CLUSTER__ I guess. AFAIR, yes, you need AD to create a failover cluster.

thanks 

i a correct in think if i had a Active / passive FAILOVER CLUSTER then I can use workgroup authentication ?

ACtive active load balancing - autnentication

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.