A customer wants to change a production RAID Group from RAID 5 (7D+1P) to RAID 6 (6D + 2P) on a VSP G700 during normal operations. They have just unmapped the LUNs from the channel ports. What needs…

Question

Options

• AThe RAID level must be changed in Storage Navigator.
• BThe RAID level must be changed in the SVP Maintenance window.
• CThe RAID 5 Group must be put into DRU mode in Storage Navigator.
• DThe RAID Group must be deleted.

• A
  16% (9)
• B
  73% (41)
• C
  4% (2)
• D
  7% (4)

Explanation

On the Hitachi VSP G700, modifying a RAID Group's fundamental structure - such as changing its RAID level - is a hardware-level maintenance operation that requires the SVP (Service Processor) Maintenance window, which grants lower-level control over RAID configuration than the standard management interface allows. After unmapping the LUNs, the administrator must enter the SVP Maintenance window to initiate the RAID reconfiguration procedure, because this operation sits outside the scope of normal operational tasks.

Why the distractors are wrong:

• A - Storage Navigator handles day-to-day operational tasks (provisioning, mapping, monitoring) but does not expose an in-place "change RAID level" function for existing RAID Groups.
• C - DRU (Drive Replacement Unit) mode is a drive-level state used during physical drive swap procedures, not a step in RAID level migration.
• D - Deleting the RAID Group will be required eventually in this process, but it is not the immediate next step; the proper maintenance context via the SVP must be entered first.

Memory tip: Think of it as two lanes - Storage Navigator = operational lane (create LUNs, map ports, monitor) and SVP Maintenance = structural lane (anything touching the RAID Group's core configuration). Crossing into structural territory means crossing into the SVP.

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