A customer has requested your help to find out where a Hitachi Unified Storage (HUS) system's FC port 0A connects into their SAN. How can you find this information?

Question

Options

• AUse the HUS Web tool to report the switch WWN and port number.
• BUse Device Manager to determine where the HUS port is connected to.
• CUse the switch name server to find the HUS WWPN.
• DUse the SNM2 Advanced Settings to determine the WWPN of the switch port.

• A
  4% (2)
• B
  4% (2)
• C
  82% (42)
• D
  10% (5)

Explanation

Option C is correct because every Fibre Channel switch maintains a Name Server - a fabric-level directory where all devices that log into the SAN register their WWPNs (World Wide Port Names) along with the switch port they're connected to. By querying the switch name server, you can look up the HUS FC port 0A's WWPN and immediately see which switch and port it's attached to - this is a standard, reliable SAN troubleshooting technique.

Why the distractors are wrong:

• A is wrong because the HUS Web tool reports information about the HUS itself, not about external switch topology or switch port mappings.
• B is wrong because Hitachi Device Manager is a storage provisioning and management tool, not a SAN topology discovery tool - it doesn't map HUS ports to specific switch ports.
• D is wrong because SNM2 (Storage Navigator Modular 2) is used to configure and manage the HUS array; its Advanced Settings reveal the HUS's own WWPN, not the identity of the switch port on the other end of the cable.

Memory tip: Think of the FC switch name server as a fabric phone book - every device that joins the SAN signs in and registers its WWPN. If you want to find a device in the fabric, look it up in the phone book (name server), not in the device's own management tool.

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