When implementing host access security for a LUN in a Hitachi Unified Storage system, to what is the host WWN applied?

The correct answer is A. Host Group. In Hitachi Unified Storage (HUS) systems, a Host Group is the logical container to which a host's WWN is assigned; this is the foundation of LUN security, allowing only hosts whose WWNs are registered in that group to access the mapped LUNs. Storage Group (B) is terminology from

Basic Configuration and Initialization

Question

Options

AHost Group
BStorage Group
CDomain Group
DLink Group

How the community answered

(54 responses)

A
94% (51)
B
2% (1)
C
4% (2)

Explanation

In Hitachi Unified Storage (HUS) systems, a Host Group is the logical container to which a host's WWN is assigned; this is the foundation of LUN security, allowing only hosts whose WWNs are registered in that group to access the mapped LUNs. Storage Group (B) is terminology from EMC/Dell storage platforms (e.g., Symmetrix/VMAX), not Hitachi - a common trap for candidates who work across multiple vendor environments. Domain Group (C) and Link Group (D) are not valid constructs in Hitachi's host access security model and serve as pure distractors. Memory tip: think "H for Host = H for Hitachi" - the WWN belongs to the Host Group because you're identifying and controlling the host that gets access.

Topics

#host access security#WWN#Host Group#LUN masking

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