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HAT-680 · Question #108

Which two Hitachi Device Manager CLI commands will prevent simultaneous updates on a storage array? (Choose two.)

The correct answer is A. AddArrayReservation C. ModifyArrayReservation. AddArrayReservation and ModifyArrayReservation are the correct answers because they actively manage reservations on a storage array - AddArrayReservation creates a new reservation that blocks concurrent access, while ModifyArrayReservation updates an existing reservation to…

Troubleshooting and Maintenance

Question

Which two Hitachi Device Manager CLI commands will prevent simultaneous updates on a storage array? (Choose two.)

Options

  • AAddArrayReservation
  • BDeleteArrayLock
  • CModifyArrayReservation
  • DGetArrayLock

How the community answered

(45 responses)
  • A
    93% (42)
  • B
    4% (2)
  • D
    2% (1)

Explanation

AddArrayReservation and ModifyArrayReservation are the correct answers because they actively manage reservations on a storage array - AddArrayReservation creates a new reservation that blocks concurrent access, while ModifyArrayReservation updates an existing reservation to maintain or change that protection. Together, they cover the two lifecycle operations that enforce exclusive control over the array.

Option B (DeleteArrayLock) is wrong because deleting a lock removes protection, doing the opposite of preventing simultaneous updates. Option D (GetArrayLock) is wrong because it only reads lock status - a read-only query has no ability to enforce or prevent anything.

Memory tip: Focus on the verbs - Add and Modify both create or change a reservation (active protection), while Delete tears it down and Get just inspects it. If the verb builds or maintains a reservation, it's a candidate for preventing simultaneous updates.

Topics

#HDvM CLI#array reservation#lock management#concurrent update prevention

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