Technology: Solutions for SSDEnterprise SSD offerings differentiate along the dimensions of cost, longevity, and speed. LEC solutions for SSD offer lower costs, greater longevity, and higher throughput for SSD manufacturers.
Cost: NAND Flash accounts for 90% of the cost of an SSD. LEC’s superior error correction capabilities allow manufacturers to use cheaper MLC and even TLC flash in an enterprise SSD setting, thereby lowering costs and increasing density. Longevity: Today, writing to flash memory degrades the memory and increases the raw error rate over time. With careful wear leveling and other techniques, SSD manufacturers work to extend the lifetime of flash-based drives by optimizing the number of writes that are performed on each section of flash. With LEC error correction, the lifetime of flash can be extended still further, by raising the maximum raw error rate that can be tolerated without drive failure. Speed: With LEC, a controller can implement advanced soft decoding and still achieve read speeds of 6.4Gbps and above without significant penalty in controller power or area. |
