What is the maximum capacity of a LUSE volume on a VSP storage system?

Question

Options

• A4 TB
• B32 TB
• C36 TB
• D60 TB

• A
  2% (1)
• B
  2% (1)
• C
  6% (3)
• D
  91% (48)

Explanation

Option D (60 TB) is correct because Hitachi VSP LUSE (Logical Unit Size Expansion) volumes support a maximum capacity of 60 TB, achieved by combining up to 36 LDEVs (Logical Devices) into a single addressable logical unit presented to a host.

Why the distractors are wrong:

• A (4 TB) - Far too small; this might reflect an individual LDEV capacity limit in certain configurations, not a LUSE aggregate.
• B (32 TB) - A plausible-sounding round number, but it doesn't correspond to any defined LUSE ceiling on VSP systems.
• C (36 TB) - The trickiest distractor: 36 is the maximum number of LDEVs that can be combined into a LUSE, not the capacity in terabytes. Confusing the LDEV count with the TB figure is the most common mistake here.

Memory tip: Think "LUSE goes the distance - 60 TB max, not the 36 LDEVs that build it." Anchoring 36 as the count and 60 as the capacity prevents the most likely mix-up on exam day.

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