SanDisk Introduces ExtremeFFS Flash Management System, Claims 100x Faster Performance

Paul Lilly

If solid state drives (SSDs) continue to march into the mainstream market, 2008 might very well one day be looked at as the start of the SSD era. But for that to happen, the performance numbers have to improve and users have to be convinced that the technology can be reliable on a long-term basis. Performance, which is supposed to SSD's strong point, has come under fire amid real-world benchmark comparisons, and as far as SanDisk is concerned, Vista is to blame .

Taking matters into its own hands, SanDisk has developed a new file system, ExtremeFFS, which the company claims has the potential to increase write performance by up to 100 times in SSDs over existing systems.

"To maximize random write performance, SanDisk developed the ExtremeFFS flash file management system," the company wrote in a press release. "This operates on a page-based algorithm, which means there is no fixed coupling between physical and logical location. When a sector of data is written, the SSD puts it where it is most convenient and efficient. The result is an improvement in random write performance – by up to 100 times – as well as in overall endurance."

ExtremeFFS allows NAND channels to work independently of each other, so while some might be reading data, others can be simultaneously writing. The technology also purports to "learn" user patterns and eventually localize data, which sounds a lot like advanced defragging routines. Admittedly, SanDisk senior VP and GM Rich Heye's concedes that it might not make a difference in benchmarks, but believes "it is the right thing to do for end-users."

In related news, SanDisk has also come up with a performance metric it is calling vRPM, or virtual RPM. The metric has been designed to let users know how fast a typical hard drive would need to spin to match the performance of an SSD, which would also allow for a performance comparison between SSDs.

Image Credit: SanDisk

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