Sunday, April 12, 2009

SandForce Unveils SSD Processors

SandForce, a start-up based in Saratoga, California, emerged from stealth mode and unveiled its first product, the SF-1000 SSD Processor family. The chips are designed to overcome data retention issues associated with NAND flash memory, making it possible to build SSDs that deliver unprecedented performance over the life of the drive with orders-of-magnitude higher reliability than enterprise-class HDDs (Hard Disk Drives). SandForce's DuraClass technology includes:

  • DuraWrite, which optimizes the number of program cycles to the flash effectively extending flash rated endurance by 80x or more when compared to standard controllers.


  • Powerful flash media error correction (ECC) and RAISE (Redundant Array of Independent Silicon Elements), which deliver an orders-of-magnitude improvement in drive reliability versus today's SSDs and enterprise HDDs. The result is single-drive RAID-like protection and recovery from a potentially catastrophic single flash block or die failure -- all while avoiding the inefficiencies of traditional RAID.


  • Wear Leveling and Monitoring, which provides monitoring of flash block operational metrics to optimize wear leveling algorithms, further extending flash endurance.


  • Advanced Read/Program Disturb Management, which safeguards against errant re-programming of cells during read and program cycles and unexpected power loss.


  • Recycler, which intelligently performs garbage collection with the least impact on flash endurance.


The SF-1000 Family features a standard 3 gigabit-per-second SATA host interface connecting up to 512 gigabytes of commodity NAND flash memory, and delivers 30K IOPS (random 4K read or write transfers), and 250MB/s performance (sequential 128KB read or write transfers) with 100 micro-second latency. SAS (Serial Attached SCSI) connectivity is easily achieved via a third-party SAS-SATA bridge available from multiple sources. Even more impressive, SF-1000-based SSDs can sustain peak performance for 5-year enterprise lifecycles without artificial daily usage restrictions or costly over-provisioning techniques. SandForce provides software, firmware, reference designs, and complete design kits to enable OEMs to bring SSDs to market quickly.
http://www.sandforce.com

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