For acquiring digital evidence from four 30 TB storage area networks, which method is most efficient?

For acquiring digital evidence from four 30 TB storage area networks, which method is most efficient?

• A. Make a bit-stream disk-to-disk file
• B. Make a bit-stream disk-to-image file
• C. Create a sparse data copy of a folder or file
• D. Create a compressed copy of the file with DoubleSpace

Answer: (C)

When you’re dealing with four 30 TB storage area networks, speed and storage efficiency during evidence collection are crucial. A sparse data copy grabs only the data blocks that actually contain information for the selected folders or files, leaving unused space unreplicated. This means you can capture the necessary evidence much faster and without filling vast amounts of storage with empty space, which is precisely what you want when the volume is so large. In practice, you identify the data likely to hold evidence, perform the sparse copy, and then generate hashes to preserve integrity and support chain-of-custody requirements. The other methods would require copying entire disks or volumes, including free space, which is time-consuming and resource-intensive, or rely on compression that can complicate verification and forensic admissibility.

When you’re dealing with four 30 TB storage area networks, speed and storage efficiency during evidence collection are crucial. A sparse data copy grabs only the data blocks that actually contain information for the selected folders or files, leaving unused space unreplicated. This means you can capture the necessary evidence much faster and without filling vast amounts of storage with empty space, which is precisely what you want when the volume is so large.

In practice, you identify the data likely to hold evidence, perform the sparse copy, and then generate hashes to preserve integrity and support chain-of-custody requirements. The other methods would require copying entire disks or volumes, including free space, which is time-consuming and resource-intensive, or rely on compression that can complicate verification and forensic admissibility.