You are using the Change Volume Capacity function of Storage Navigator Modular 2 (SNM2) to manage a Hitachi Unified Storage (HUS) system. Hitachi Dynamic Provisioning is not used. Which two…

Question

Options

• AAdd additional LUs to an existing LUN.
• BRelease the first LU from a unified LUN.
• CGrow a LUN by adding free space from any RAID Group.
• DShrink a LUN by releasing space back to the RAID Group.

Explanation

Options A and D are correct.

When using the Change Volume Capacity function in SNM2 without Dynamic Provisioning, you work with unified LUNs (concatenated LUs). You can grow a unified LUN by appending additional LUs to it (A), and you can shrink it by releasing LUs back to their RAID Group (D) - but only from the end of the concatenation, never the first LU. Option B is wrong precisely because the first LU anchors the unified LUN and holds its metadata; releasing it would destroy the volume structure. Option C is wrong because without Dynamic Provisioning, capacity must come from the same RAID Group as the existing LUs - cross-RAID Group expansion is a feature tied to Dynamic Provisioning pools.

Memory tip: Think of a unified LUN like a train - you can add or remove cars from the rear, but you can never unhitch the engine (first LU). And the cars must come from the same train yard (same RAID Group).

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