雲端儲存伺服器 (Cloud Storage Server)
簡介
2014年, IDC預測地球上每人每分鐘會產出1.7MB的數據,整體數據產出量可預期的將以每年40%的增長速度持續增加,在2020年以前,會有44 zettabytes(1 trillion GB)的數據量產出。企業正在持續的進行數據的累積與分析,以了解客戶需求的視野來幫助決策的制定,開啟了數據與海量資料以指數型式成長的循環,雲端儲存伺服器成為建構海量數據資料庫的系統核心設備。
雲端儲存伺服器需要storage controller 來因應嚴謹的 RAID data protection規格以建構具備合理ROI的server storage系統,主要需具備的功能如下:
- Enables the server to boot directly from the RAID array, eliminating the need for specialized boot drives and protecting information
- Allows IT managers to standardize on a single platform-agnostic controller that supports large, highly scalable drive pools to simplify storage expansion and management
- Supports a wide range of RAID levels including RAID 6, RAID 50 and RAID 60 to accommodate growing business needs for data protection
- Supports caching acceleration options for higher levels of RAID data protection to optimize performance.
- Supports the use of solid state drives (SSDs) to cache and accelerate frequently accessed data, combining the benefits of high-performance SSDs and high-capacity HDDs.
技術標準
SAS通訊協定由INCITS(International Committee for Information Technology Standards)的 T10 committee 負責開發與維護, 由 SCSITA(SCSI Trade Association)負責推廣。
NVM Express(NVMe),或稱非揮發性記憶體主機控制器介面規範(Non-Volatile Memory Host Controller Interface Specification,NVMHCIS),是一個邏輯裝置介面規範。它是與AHCI類似的、基於裝置邏輯介面的匯流排傳輸協定規範(相當於通訊協定中的應用層),用於存取通過PCI Express匯流排附加的非揮發性記憶體媒介(例如採用快閃記憶體的固態硬碟機)。
通用底板管理標準(Universal Backplane Management,UBM)用以規範伺服器中底板訊號傳輸的設計(SFF-TA-1005)
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SAS-1/SAS-2/SAS-3/SAS-4
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NVMe 1.0/1.1/1.2/1.3/1.4
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SFF-TA-1005
- SGPIO (SFF-8485) functionality
- 2-Wire SES
- 2-Wire PCA usage
- Lane width detection enabling x1 and x2 NVMe usage
- Describing clocking requirements – REFCLK vs. SRIS vs. SRNS
- Enabling usage for power disable control
產品應用
Direct Attached Storage (DAS)
Network Attached Storage (NAS)
Storage Area Networks (SANs)
Networks Flash based Storage
產品組成架構