While today's demonstration focuses on Native Command Queuing, the companies are also moving forward to bring to life new Serial ATA II features including:
1.Performance improvements such as out-of-order execution/delivery and data scatter/gathering
2.Complete enclosure management including fan control, activity indicators, temperature control, new device notification
3.Backplane interconnect solution to extend trace lengths beyond those allowed by Serial ATA 1.0 for use in racks of hot-swappable drives
4.Efficient connectivity to a large number of drives
http://www.siimage.com/press/09_09_02_3.asp
上述資料來自SiliconImage...提到SATA II將會加入許多SCSI的優良特性...如Command Queuing.scatter/gathering....等等以提升系統IO的效率...並強調於SERVER及NAS的實用性
目前SATA1.0目的只是引導廠商及使用者轉移到SERIAL...SATA II之後將會將SATA發揮到應有的境界...
另外目前初期的SATA 1.0外加IO卡及硬碟機有些是並列ATA搭配SATA橋接器...這並不能發揮SATA1的效能...例如HIGHPOINT的1520/1540系列....只要看到介面接頭附近有顆小小M字頭的IC就是SATA橋接器...這就表示這個DEVICE或是CARD不是真正的SATA設計.只是PATA藉由這顆小小的橋接器轉成SATA介面輸出入而已...前些日子TOM上面測試的SATA就是這樣的產品...
真正期待的應該是SATA II的來臨....SATA 1.0只是開始
書籤