It is hard to believe that SandForce only opened their doors just over a year ago and their impact has changed the way we are looking at solid state drives today.
Today, the company takes the wraps off of its next-gen SF series controllers destined for client rather than enterprise SSDs. Like the existing SF series, the new family is infused with a black box of encryption and compression technologies dubbed DuraWrite.
This unique approach yields a low write amplification factor that should make more efficient use of the limited number of write-erase cycles offered by flash memory. Speaking of flash, the new controllers work with MLC and SLC chips built using 2x-nm and 3x-nm fabrication technology.
They also support the latest flash technologies: The move to finer flash fabrication tech is said to produce higher error rates and lower the write-erase endurance of individual memory cells. When we discussed this issue with SandForce at CES earlier this year, the company was quick to point out DuraWrite's low amplification factor.
There are two members of the SF family. The SF is being targeted at enthusiasts, alongside an SF meant for the mainstream and entry-level markets. Although the SF offers the same features, expect less performance.
Those are sustained rates; the controllers are purportedly capable of hitting 60k random write IOps in short bursts.
Stronger security is on the menu for these new controllers, which now offer bit AES encrpytion. Stay tuned for a preview of the SF's performance.Write amplification (WA) is an undesirable phenomenon associated with flash memory and solid-state drives (SSDs) where the actual amount of information physically written to the storage media is a multiple of the logical amount intended to be written.
Efficient Write Amplification Factor of less than 1 (4k database transfer workload) Comprehensive SSD specific S.M.A.R.T.
attributes 28% over-provisioning for optimal drive performance and data. Leading solid-state drive (SSD) chip maker SandForce today announced a next-generation of controllers that offer double the performance over its legacy models along with improved encryption capabilities.
The new SF and SF Client SSD processors, which replace the SF chip, include the. One major performance advantage in the new processors is the ability to read and write data with the same speeds due to a low write amplification rate, according to Smith.
For example, the SF has a maximum read and write performance of MB/sec. SandForce SSD Group Test. The reason this compression technology is so important is the drive’s write amplification factor; where an SSD writes more data than it’s been given in order to.
One major performance advantage in the new processors is the ability to read and write data with the same speeds due to a low write amplification rate, according to Smith. For example, the SF has a maximum read and write performance of MB/sec.