When implementing FA File services (Pure Storage's file services protocol support), the array must integrate with the customer's existing directory infrastructure (like Active Directory) for user authentication and permission management. By default, the FlashArray utilizes its management interface to perform DNS resolution and establish communication with domain controllers.
This design choice simplifies initial deployment because the management network is typically already configured with access to core infrastructure services like DNS and NTP. While the filevip (File Virtual IP) and its associated virtual interfaces (vif) are used for actual SMB/NFS data traffic between clients and the array, the control plane traffic for directory services and authentication lookups is routed through the management port (ct0.eth0/ct1.eth0 or the virtual management IP).
It is critical for Implementation Engineers to verify that the management network has the necessary firewall rules and routing to reach the customer's domain controllers and DNS servers. If the management interface is isolated on a dedicated out-of-band network without access to these services, the FA File directory service configuration will fail, even if the data interfaces (filevip) are correctly cabled and IP'd.
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