You are installing the latest release of Hitachi Device Manager and Tuning Manager on different servers to support your Hitachi Unified Storage (HUS) environment. Which two statements are correct in r

Question

Options

• AThe servers use IPv4 protocol to communicate.
• BThe servers' system clocks must be synchronized with less than 5 minutes difference.
• CThe servers use a heartbeat poll over a dedicated management IP link.
• DThe servers communicate in-band over FC connections to the HUS.

Explanation

Based on Hitachi Device Manager and Tuning Manager product requirements, the two correct answers are A and B.

A is correct because Device Manager and Tuning Manager use IPv4 as the protocol for server-to-server communication. The management servers communicate over a standard IP network using TCP/IPv4, which is a foundational requirement when registering Tuning Manager with Device Manager.

B is correct because time synchronization is mandatory between the servers. Hitachi requires that the system clocks on the Device Manager and Tuning Manager servers differ by less than 5 minutes. This is essential for accurate log correlation, authentication token validation, and performance data timestamping across the two systems.

C is wrong because there is no heartbeat poll over a dedicated management IP link required between these servers. They communicate over a standard network connection, not a specialized dedicated link.

D is wrong because Device Manager and Tuning Manager communicate out-of-band over IP, not in-band over Fibre Channel. FC connections carry storage I/O data, not management traffic between these servers.

Memory tip: Think "IP and Time" - these two management servers need a common IP language (IPv4) and a synchronized clock (within 5 min) to talk to each other, just like scheduling a meeting requires both parties to speak the same language and agree on the time zone.

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