You have a LUSE volume on a USP V storage system which is no longer used by any server. Using Hitachi Device Manager, what must be done to release the LUSE volume?

Question

Options

• AThe LUSE volume must be marked as "unused".
• BThe LUSE volume must be marked as "invalidated".
• CYou must format the LUSE volume first to delete all the data on it.
• DYou must release all defined data paths for this LUSE volume.

• A
  8% (5)
• B
  3% (2)
• C
  16% (10)
• D
  73% (45)

Explanation

Releasing a LUSE volume in Hitachi Device Manager requires that all defined data paths (LUN paths mapping the volume to host ports) be removed first - the system will not permit the volume to be released while active paths still reference it. Option A is wrong because there is no "unused" marking operation required or available in this workflow. Option B is incorrect because "invalidated" is not a valid step in the LUSE release process (invalidation applies to cache or journal volumes in other contexts). Option C is a red herring - formatting to erase data is not a prerequisite for releasing a LUSE volume; the release operation itself handles logical reclamation. Memory tip: Think of data paths as "locks" on the volume - you must unlock (release all paths) before Device Manager will let you return the LUSE volume to the pool.

No community discussion yet for this question.