Although solid-state drives (SSD) are gaining popularity quickly in mainstream computers, their capacities are no where near a normal mechanical hard drive (HDD). To keep the cost down, a lot of people now will include a small SSD for the operating system and frequently used applications, and a large HDD for other files in their PC builds. The Western Digital Blue 1TB HDD is one of the top choices in the PC community.
The WD Blue 1TB hard drive is designed for normal desktop use, using the 3.5-inch form factor. The drive spins at 7200 RPM with a single platter. The drive is paired with 64MB of cache. It is rated to transfer data at 150 MB/s. The WD Blue HDD lineup also offers different capacities, from 500GB up to 6TB.
All information is printed on the top of the drive, including the model number, drive capacity and serial number.
The printed circuit board (PCB) is located at the back of the drive, with the Serial ATA 6 Gb/s (SATA) connector. Standard mounting holes are at both the bottom and the sides.
To test the performance of the hard drive, I uses two well-established storage benchmarking softwares. They are CrystalDiskMark and ATTO Disk Benchmark.
CrystalDiskMark can measure both sequential and random 4KB read/write speeds with a queue depth of 32. ATTO Disk Benchmark can test how the drive performs across different transfer block sizes, mostly in a sequential environment.
As we can see, in CrystalDiskMark, the WD Blue 1TB HDD performs as advertised in sequential read and write speeds, at about 142.8 MB/s and 159.8 MB/s respectively. However, the hard drive did not do well in 4KB random read and write. Its speeds dropped to 0.388 MB/s and 1.295 MB/s for read and write. This is to be expected for a traditional hard drive to deal with random operations, due to the limitation of the read/write head moving across the platter.
|Transfer Size from 512 B to 64 MB, Queue Depth=4|
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