SanDisk claims new SSDs will raise speed, endurance

ExtremeFFS will improve two weaknesses in solid-state drives, company says

SanDisk on Wednesday announced a new flash memory management system called ExtremeFFS that it says will dramatically improve two of the main weaknesses today in the emerging technology of solid-state drives (SSDs).

ExtremeFFS should boost the speed of writing common types of data to SSDs by as much as 100 times, said Don Barnetson, senior director of marketing for the Milpitas, Calif., memory maker's SSD business unit. ExtremeFFS also allows data to be written to disk without erasing and rewriting nearby stored data, Barnetson said. That, along with the ability to move data around to ensure that the physical memory blocks wear out evenly, should boost the longevity of SanDisk SSDs introduced next year, he said.

The first generation of SSDs garnered praise for using less power and generating less heat. But despite claims that SSDs were faster than mechanical spinning hard drives, many customers found SSDs performed slower than conventional disks, especially when writing data.

Barnetson agreed. While SSDs are fast at writing large files and at reading either large or small files, they tend to be far slower than mechanical hard drives at storing small slices of data, what Barnetson called "random writes."

As a result, SSDs that were introduced in notebook computers last year performed at a speed equivalent to a conventional hard drive spinning at 1,000 revolutions per minute (RPM), Barnetson said. The slowest notebook drives today spin at 5,400 RPM.

A push for standards

To help overcome lingering customer concern over SSD performance and endurance, SanDisk also proposed the industry adopt two easy-to-understand metrics.

One, called Longterm Data Endurance, or LDE, would measure the total amount of data that can be written to an SSD before it fails.

For instance, a drive with an LDE of 40 TBW (terabytes written) should be able to last almost 11 years if the user writes an average of 10GB per day.

LDE would be an average figure, similar to a car's mile per gallon (MPG) rating, or the number of miles a set of tires are expected to last, Barnetson said. Vendors are free to tout a lower-range LDE for warranty or guarantee purposes, he added.

SanDisk has already submitted a proposal to JEDEC, which develops standards for the SSD industry.

Join the PC World newsletter!

Error: Please check your email address.

Tags flash memorysandisk

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Eric Lai

Computerworld
Show Comments

Essentials

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

Lexar® JumpDrive® C20c USB Type-C flash drive 

Learn more >

Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards 

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

HD Pan/Tilt Wi-Fi Camera with Night Vision NC450

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?