存储器

存储器

  • 存储器技术组集中发展高性能、高可用度和耐用的固态硬盘(SSD) 控制晶片,适用于新一代大容量存储设备和提高存储数据安全性的应用。

    应科院自主开发的快闪存储(Flash) 控制器设计平台配置灵活,方便对接各种主机接口标准、扩充储存容量、搭载纠错编码和加密等功能。

    以下简介存储设计平台、技术、特别功能,以及高性能固态硬盘(SSD) 控制晶片的应用实例:

    技术亮点

    高性能SSD控制器

    Data Packaging Efficiency (UASP)

    Memory_SSD Controller_USAP

    Key goals of UASP

    • Support multi-commands queue and return full SCSI status and sense data
    • Leveraging USB3.0 streaming capability to implement the multiple commands queuing
    • Asynchronous notification thanks to USB3.0 dual-simplex transaction
    • Improve 30% efficiency comparing to current Bulk Only Transaction (BOT) protocol for Mass Storage Class

     

    应用于企业数据中心和云存储的NVMe (Non-Volatile Memory Express) 控制器

    • Native PCIe interface NAND Flash Storage
    • Provide high efficient solid state storage platform for enterprise application
    • Enterprise Data Center and Cloud Storage

     

    以DRAM作为数据缓存的创新混合架构

    Technical Specifications

    Items
    Bus Interface PCIe 2.0 x8 (x8 and x16 slot compatible).

    NVME1.1a protocol supported

    Features Intelligent write back and write through cache supported. Optimized cache population/eviction algorithm.

    Multi protocols supported (NAS/SAN: iSCSI, NFS, FC, FCoE; DAS: SAS, SATA).

    Zero warm-up cache with super-cap backup DRAM.

    DDR DRAM Up to 16GB DDR3 SDRAM (with full ECC protection), ultra capacitor-based backup data to NAND
    NAND Up to 128GB ,Both SLC and MLC NAND are compatible. ONFI 2.1 and TOGGLE 1.0 supported. 72 bits ECC per 1KB BCH and Reconfigurable NAND Flash commands supported.
    Latency Single IO request (4KB block) less than 15 microseconds;

    Multi IO request (4KB block) less than 10 microseconds.

    Host OS Windows, Linux and major virtualization hypervisor.
    Power consumption Normal operation: less than 15 watts;

    Maximum: less than 25 watts.

    Form Factor PCI standard profile.