ATTO Disk Benchmark is a freeware application that measures your storage system's performance with transfer sizes and test lengths for read and write speeds.

Several options are available to customize your performance measurement, including queue depth, overlapped I/O, and even a comparison mode with the option to run continuously. You can test any manufacturer's RAID controllers, storage controllers, host adapters, hard drives, and SSD drives.

ATTO Disk Benchmark Features:

● Transfer sizes from 512KB to 8MB
● Transfer lengths from 64KB to 2GB
● Support for overlapped I/O
● Supports a variety of queue depths
● I/O comparisons with various test patterns
● Timed mode allows continuous testing
● Non-destructive performance measurement on formatted drives

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