{
  "title": "Storage device data for AI capacity-unit review",
  "source_page": "https://fiund.com/industries/storage-capacity-unit-record-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Capacity figures agree after using the stated base",
    "context": "A fictional storage label uses decimal units and an observation log uses bytes. It contains no actual device or user data.",
    "records": [
      [
        "1",
        "Device card",
        "Model S8 nominal 2 decimal GB."
      ],
      [
        "2",
        "Unit glossary",
        "In this example one decimal GB equals 1,000,000,000 bytes."
      ],
      [
        "3",
        "Observation",
        "S8 reports total 2,000,000,000 bytes, free 1,500,000,000 bytes."
      ]
    ],
    "question": "Which observed field can be compared with the nominal figure?",
    "answer": "Use total: 2,000,000,000 bytes equals 2 decimal GB under record 2 and agrees with record 1. Free space in record 3 is 1.5 decimal GB and answers a different question. The records provide no binary-unit figure unless explicitly converted.",
    "failureModes": [
      "Comparing free space to nominal total",
      "Mixing decimal and binary units without conversion"
    ],
    "fields": [
      [
        "capacity_role",
        "Distinguishes total and free"
      ],
      [
        "unit_base",
        "Defines the conversion factor"
      ],
      [
        "device_id",
        "Associates observations with the label"
      ]
    ],
    "holdout": "Label an observation in binary GiB and require explicit conversion rather than interpreting the number as decimal GB.",
    "boundary": "No actual storage devices, customer data, data recovery or performance claims."
  }
}