Test results: Atto Random Write
We use Atto to measure how well the drives can process random read- and write commands. We do so using both small block sizes (4 kB) and large block sizes (1 MB). The 4 kB speeds are mainly intended to provide insight in how well the drive performs when used as a disk for your OS and other programs. The 1 MB tests, on the other hand, offer insight in how well the drive performs when storing files of limited size.
The Barracuda Pro 12TB is the fastest when writing in the 4kB-test. With bigger files the new drive is not the fastest, although it does end up in the top three.