ValiDrive
ValiDrive performs a fast, randomized spot-check across the entire declared capacity of a USB drive. At each location, it verifies the successful storage and retrieval of random, unspoofable test data.
While scanning your USB drive, ValiDrive also records the time required for each random read and write operation. Once the scan is complete, it analyzes and summarizes the drive's access-time statistics in a detailed final report.
The drive maps shown below are typical of the counterfeit USB drives flooding the market. In this example, a drive was sold as having two terabytes (2 TB) of capacity but actually contains only 62 gigabytes (62 GB) of real flash storage:
How much of the storage of a drive does ValiDrive test?
ValiDrive's drive map contains 32 x 16 squares. So it tests 576 evenly-spaced 4k byte regions of any drive for a total of 2,359,296 bytes, or about 2.36 megabytes. If a...
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