You have to perform a firmware update containing new code for DKCMain, CHBs and drives on a VSP G900. What are two requirements? (Choose two.)

Question

Options

• AThe CHBs must be updated first.
• BThe Microprocessor utilization should be below 50%.
• CThe Cache Write Pending rate should be below 30%.
• DThere should be no sparing processes running in the background.

• A
  10% (4)
• B
  72% (28)
• C
  18% (7)

Explanation

Performing a firmware update on a VSP G900 requires the system to be in a stable, low-activity state to avoid failures or data integrity issues. Microprocessor utilization below 50% (B) is required because the update process itself consumes significant CPU resources - a heavily loaded MP unit risks update timeouts or instability while still needing to service host I/O. No active sparing processes (D) is required because sparing involves live data movement (e.g., rebuilds, copy-back); interrupting or conflicting with that process mid-update could leave the array in a degraded or inconsistent state.

A is wrong because there is no documented requirement that CHBs must be updated first - the firmware update procedure manages component sequencing automatically, and this ordering is not a user-enforced prerequisite. C is wrong because a 30% Cache Write Pending threshold is not a stated firmware update requirement for the VSP G900; CWP is an important performance metric but not a documented pre-update gate at that specific value.

Memory tip: Think "No Stress, No Sparing" - the system needs low processor stress (MP < 50%) and no active sparing operations before you touch the firmware. If the array is busy rebuilding or overloaded, wait.

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