Requirements

To implement a two-node failover configuration for WS_FTP Server, you need the following:

• A single license with multiple activations for WS_FTP Server V2017 or WS_FTP Server with SSH V2017 (they must be the same edition, you cannot mix an FTP only edition with an SSH edition)
• Windows Server OS for each WS_FTP Server installation, also called a node. Supported operating systems for MSCS failover clustering are:

Operating System	Edition	Supported Versions
Windows Server 2012 R2	Standard Datacenter	64-bit: English
Windows Server 2012	Standard Datacenter	64-bit: English
Windows Server 2008 R2	Enterprise	64-bit: English Your MSCS cluster must consist of two Windows Server 2008 R2 Enterprise nodes or two Windows Server 2012 Standard or Datacenter nodes. Both nodes must have similar hardware and require identical .NET frameworks and service packs. The cluster will fail a validation test if your environments aren't properly configured during setup.

• Each node requires two network adapters with dedicated IP addresses
• Microsoft Cluster Services for each node (included with Windows Server 2008 R2 Enterprise and Windows Server 2012 Standard and Datacenter)

The shared resources should be installed on systems that are separate from the two WS_FTP Server installations:

• User database for authentication (shared by both nodes) can be: WS_FTP Server database, Active Directory, or other LDAP or ODBC database
• Microsoft SQL Server 2008 R2 Standard or Enterprise, Microsoft SQL Server 2012 Standard or Enterprise, or Microsoft SQL Server 2014 Standard or Enterprise, for WS_FTP Server configuration data (shared by both nodes)
• A NAS or file system for the file transfer file system and log data shared by both nodes

  You must configure all shared resources completely before installing WS_FTP Server or the failover solution may not function properly.