In Huawei Fusion Computer, when the administrator checks the disk status, he finds that ""actual usage" is less than "capacity". The reason for this phenomenon is?

Question

Options

• AThe disk mode is "Slave
• BDisk status is "unavailable"
• CThe disk mode is "thin"
• DThe disk type is shared"

• A
  14% (4)
• B
  4% (1)
• C
  75% (21)
• D
  7% (2)

Explanation

Thin provisioning (option C) is the cause: a disk in "thin" mode allocates storage on-demand rather than upfront, so the system reports a large capacity (the maximum it could grow to) while actual usage reflects only the space genuinely written so far. This gap between reported capacity and real consumption is the defining characteristic of thin-provisioned disks.

Why the distractors are wrong:

• A (Slave mode): Disk role in a master/slave pair affects redundancy and I/O routing, not how capacity is reported versus consumed.
• B (Unavailable status): An unavailable disk would prevent access entirely; it doesn't create a capacity/usage discrepancy.
• D (Shared type): Shared disks are accessible by multiple hosts simultaneously, but this sharing doesn't cause the capacity figure to exceed actual usage.

Memory tip: Think of thin provisioning like a lease on a 100-seat conference room where you only pay for the chairs you actually bring in - the room's capacity is 100, but your actual usage is just what's occupied. "Thin = promise now, pay later."

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