Port configuration verification system

Abstract

One or more aspects of the present disclosure relate to verifying port connectivity in storage environments. A storage array obtains Fabric Device Management Interface (FDMI) metadata from a switch containing information about World Wide Names (WWNs) associated with host bus adapter (HBA) ports. The storage array analyzes the metadata to determine multiple WWNs associated with the same physical HBA port and examines masking information to identify array ports masked to those WWNs. The system detects connectivity configuration issues, including single points of failure where redundant connectivity appears to exist, non-uniform masking patterns across virtual WWNs sharing a physical port, and fan-in conditions where excessive array port connections create performance bottlenecks. Upon detecting these issues, the system initiates corrective actions and provides warnings to prevent uneven input/output (IO) load distribution and improve storage network reliability.

Dependencies are inferred from the claim text.