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Computer Evidence: Collection and Preservation, Second Edition by Christopher L. T. Brown

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Physical Disk Interfaces and Access Methods

As previously stated, the speed characteristics of the access method used to connect to a disk are a key component to the disk’s overall performance. The disk-access method and its corresponding physical interface in use are of primary interest to the investigator and will become an important factor in evidence-collection methodology and tools used. Some common specifications that correlate to access method and physical interfaces follow:

  • ATA (IDE, EIDE, ATAPI Serial ATA)

  • SCSI

  • Serial Attached SCSII (SAS)

  • FireWire/Institute of Electrical and Electronics Engineers (IEEE) 1394

  • Universal Serial Bus (USB)

  • Fibre Channel

By and large, one of the interface and access methods most commonly seen by the forensics ...

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