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SATA

  • SATA
    • Serial ATA
  • ATA
    • AT Attachment
  • 2003 1.0 1.5 Gbit/s 150 MB/s
  • 2004 2.0 3 Gbit/s 300 MB/s
  • 2008 3.0 6 Gbit/s 600 MB/s
  • 2013 3.2 16 Gbit/s 1969 MB/s
  • AHCI - Advanced Host Controller Interface
  • OHCI - Open
    • USB 1.1
  • EHCI
    • USB 2.0
  • UHCI - Universal
  • XHCI - Extensible
    • USB 3.0
  • WHCI - Wireless
SpecBWRateEncodingSince
SAS-13.0 Gbit/s2004
SAS-26.0 Gbit/s2009-02
SAS-312.0 Gbit/s2013-03
SAS-422.5 Gbit/s2017
SAS-545 Gbit/s
SATA 1.01.5 Gb/s150MB/s8b/10b2003-01
SATA 2.03 Gb/s300MB/s8b/10b2004
SATA 3.06 Gb/s600MB/s8b/10b2009-05
SATA Express16 Gb/s1969MB/s128b/130b
Spec vs Connector
  • Spec
    • 定义物理层、链路层、端口层、传输层、应用层
  • Connector
    • 定义物理接口

| Host | Pins | # | | -------- | ----- | ------- | ------------------------ | | SFF-8087 | 36 | 4 | 常见 | | SFF-8088 | 26 | 4 | external iPass,iSAS,mSAS | | SFF-8482 | 29 | 2 lanes | SATA, SAS - 最常见 | | SFF-8484 | 32,19 | 4,2 | | SFF-8639 | 67 | 4 | U.2, U.3 |

  • SFF -> Small Form Factor
  • SFFWG -> Small Form Factor Working Group
    • 2010

| Connector | Pin | | --------- | --- | ----------------------------- | | SATA | 7 | | mSATA | | 接口同 mini PCI-E, 电信号不同 | | eSATA | | USB 2.0 | 4 | | eSATAp | | Power over eSATA,eSATA+USB |

  • SFF-8087
    • PCie 卡上 1 分 4 接口
    • SFF-8087 -> 4 SFF-8482
  • SFF-8482

| abbr. | stand for | | ----- | ------------------------------------------------------------------------ | ------------------ | | SGPIO | Serial general purpose input/output | 串行通用型输入输出 | | NVMe | NVM Express, Non-Volatile Memory Host Controller Interface Specification | | SAS | Serial Attached SCSI |

M.2

  • M.2 - NGFF - Next Generation Form Factor
  • 用于替换 mSATA
  • 物理硬件使用 pcie-mini 的布局
  • 更适合于 SSD
  • 支持 3.3V
  • for thin, power-constrained devices
    • tablet computers, laptops.
  • 宽 22 mm
  • 长 60, 80, 110 mm

U.2

  • 2.5" SSDs
  • SFF-8639
  • 支持 3.3 V, 5 V, 12 V
  • for enterprise storage systems
    • 2.5", 3.5" 硬盘
  • successor
    • EDSFF
    • U.3

U.3

  • SFF-TA-1001

iSCSI

SAN

  • SAN Storage Area Network

FAQ

SAS vs SATA

目前功能上已经没有太大区别。

  • SATA
    • 家用、消费级产品
  • SAS
    • SATA 超集 - SAS 兼容 SATA
    • 服务器、工作站、企业级
    • 基础要求高于 SATA