A storage administrator wants to present an LDEV to a server attached to a newly installed VSP One B28 system. Two Host Groups have been created on ports CL3-A and CL4-A for this server. Which three…

Question

Options

• ALUN
• BWWPN
• CServer Name
• DHost Mode
• ERAID Group

• A
  82% (23)
• C
  7% (2)
• E
  11% (3)

Explanation

To present an LDEV (Logical Device) to a server through a Host Group on a Hitachi VSP, three items must be registered: the LUN (A) maps the LDEV to a logical unit number the server can address; the WWPN (B) identifies the server's HBA ports so the storage system knows which hosts can access that LUN; and the Host Mode (D) configures the Host Group to communicate correctly with the server's operating system (e.g., Windows, Linux, VMware).

C (Server Name) is wrong - the storage system identifies hosts by WWPN, not a human-readable name; server names are not registered in Host Groups. E (RAID Group) is wrong - RAID Groups are a back-end concept used when creating LDEVs; they are not registered in Host Groups, which handle front-end host access.

Memory tip: Think of a Host Group as a "guest list for a party" - you need to know who's invited (WWPN), what table they sit at (LUN), and what language to speak with them (Host Mode). RAID Groups and server names stay in the back office, not on the guest list.

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