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Enterprise SSDs from Toshiba target read-intensive apps

Posted: 12 Dec 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Toshiba? enterprise SSD? read-intensive? SAS interface?

Toshiba has uncloaked a series of enterprise solid-state drives (SSDs) intended for read-intensive applications. The PX03SN series SSD comes in a 2.5in form factor with capacities of up to 1.6TB and uses the company's NAND flash memory, 19nm MLC, with a 12Gb/s SAS interface. There are four models in the series: the 200GB PX03SNF020, the 400GB PX03SNF040, the 800GB PX03SNF080 and the 1.6TB PX03SNB160.

Toshiba said this is its first enterprise-class SSD specifically designed for read-intensive applications, which access data more frequently than they write it. The data path of a read-intensive SSD needs to be optimized to maximize data transfer from the SSD to the host system.

In an email exchange with EE Times, a Toshiba spokesperson cited media streaming, file and web content serving, read-caching and low- to mid-duty primary storage as typical read-intensive applications, and said the PX03SN is designed to perform read operations with both random and sequential data access patterns, as well as for mixed read/write workloads where data is programmed to the SSD, primarily in a sequential pattern.

One of the challenges faced by SSDs is that performance can degrade when the device has to perform a combination of reads and writes. Memory architectures such as the one developed by Diablo Technologies are addressing this issue.

Toshiba expects uptake of the PX03SN series will be in the enterprise space where the SAS interface is commonplace, such as flash and hybrid storage arrays, media and web servers, and certain types of caching devices.

- Gary Hilson
??EE Times

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