Hybrid Storage for Western Digital, with capacity up to 4 Terabytes

Storage Vision 2015 events, which is being held in Las Vegas in parallel at CES 2015, are on display hybrid solutions that combine Western Digital hard disk mechanical memory via SSD; all seasoned with SATA interface Espress. CES next to a second industry event features this week in Las Vegas: it’s Storage Vision 2015, specializing in all. What are the solutions of data storage for different types of devices on the market?

Western Digital has taken this opportunity to demonstrate its new hybrid storage solution, which then combines traditional mechanical system turntables to the potential of SSDs. The design provides for a capacity of 4 Terabytes made available by the hard disk drive component, combined with an SSD up to 128 Gbytes of capacity that operates as a cache memory.

At the base of this product using interface SATA Espress PCI-e, with a form factor that is the traditional 3-inch and 1/2 typical of mechanical hard drives. At present, this type of interface is supported by some of the motherboards based on the chipset Intel 9 series, combined with the Core Series Haswell: these are the first hard disk compatible bordering the market but in the course of 2015 their number should increase.

From the graph provided by Western Digital, refers to a model with cache 64 Gbytes, emerge speed performance overall very interesting for this model, with a given Storage Score from the benchmark PCMark8 which is very close to that of a SSD 256 Gbytes of capacity.


The use of a traditional mechanical component allows to obtain a storage capacity for each dollar spent, which is very high, especially in comparison with a SSD. What this chart does not specify is the trend of the performance of hybrid hard drive when the memory capacity SSD cache is saturated, in which case you get a reduction in speed performance that become de facto limited by the capacity of the traditional mechanical part.

The availability of cache memories via SSD integrated more and more capacious, and the use of more sophisticated management algorithms is making more and more efficient in these storage solutions, making them ideal proposals for those scenarios of use where high performance is to be combined necessarily a capacity of reference.