When using Hitachi Device Manager to map external volumes to a VSP storage system, what are three external volume attributes that can be set? (Choose three.)

Question

Options

• Acache mode
• BCLPR
• Cemulation type
• DSLPR
• Einternal LDEV number

• A
  79% (23)
• C
  14% (4)
• D
  7% (2)

Explanation

When mapping external volumes in Hitachi Device Manager, cache mode (A) controls how read/write caching behaves for the external volume, CLPR (B) assigns the volume to a specific Cache Logical Partition (controlling which cache pool the volume uses), and internal LDEV number (E) lets you designate which logical device number the VSP will use to represent that external volume internally. These three attributes directly define how the external volume integrates into the VSP's caching and addressing architecture.

C (emulation type) is wrong because emulation type is an attribute of internal LDEVs, not something you configure when mapping an external volume - the VSP recognizes the external volume's type from the source array. D (SLPR) is wrong because Storage Logical Partitions are a feature of older Hitachi platforms (USP/USP-V) and are not supported on VSP; CLPR is the VSP's partitioning mechanism, making SLPR a classic trap answer designed to catch test-takers who confuse the two acronyms.

Memory tip: Think "CBE - Cache, B-partition (CLPR), Entry number (LDEV)" - the three things you control when "checking in" an external volume to the VSP's internal registry. If you see SLPR, remember: S = Superseded (old platform).

No community discussion yet for this question.