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Fujitsu Laboratories Ltd. today announced the development of a high-speed in-memory data deduplication technology for all-flash arrays, which are large-scale, high-speed storage systems and use multiple flash devices such as solid-state drives. This technology enables the production of storage systems with up to twice the response speed when writing data, compared to previous methods.

In recent years, all-flash arrays have incorporated deduplication technology that consolidates duplicate data into one to write to a flash device, in order to utilize the limited capacity of flash devices. However, as the system connects to multiple flash devices through a network in order to search for duplicate data each time it writes data, and storage devices grow in capacity and increase in speed, a problem of lowered response speed during write operations arises.

Now Fujitsu Laboratories has developed a new method that can accelerate response speeds by executing deduplication after writing data. In addition, as data may be written to memory twice in some cases when processing is continued with the new method, thereby increasing communications volume and lowering overall processing performance, Fujitsu Laboratories has developed technology to automatically switch between the new method and the previous method, as operational conditions require.

This means that response speeds can be increased by up to two times, improving the response of virtual desktop services and reducing database processing times.

Details of this technology were announced at the 28th Computer Systems Symposium (ComSys2016), held November 28 at Hosei University in Tokyo.

To view the original press release, please click here.

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