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A single-chip storage LSI for home networks

机译:用于家庭网络的单芯片存储LSI

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Network direct attached storage (NDAS) is a network storage architecture that allows direct attachment of existing ATA/ATAPI devices to Ethernet without a separate server. Unlike other architectures such as NAS, SAN, and USB mass storage, no server computer intervenes between the storage and the client hosts. We describe an NDAS disk controller (NDC) amenable to low-cost single-chip implementation that processes a simplified L3/L4 protocol and converts commands between ATA/ATAPI and Ethernet, while the remaining complex tasks are performed by remote hosts. Unlike NAS architectures that use TCP/IP, NDAS uses a TCP-like lean protocol that lends itself well to high-performance hardware realization. Thanks to the simple NDAS architecture and protocol, an NDC implemented on a single 4 mm /spl times/ 4 mm chip in 0.18 /spl mu/m CMOS technology achieves a maximum throughput of 55 Mbytes/s on gigabit Ethernet, which is comparable to that of a high-performance disk locally attached to a host computer.
机译:网络直接连接存储(NDAS)是一种网络存储体系结构,它允许将现有ATA / ATAPI设备直接连接到以太网,而无需单独的服务器。与其他体系结构(例如NAS,SAN和USB大容量存储)不同,没有服务器计算机在存储和客户端主机之间进行干预。我们描述了适用于低成本单芯片实现的NDAS磁盘控制器(NDC),该磁盘控制器处理简化的L3 / L4协议并在ATA / ATAPI和以太网之间转换命令,而其余的复杂任务则由远程主机执行。与使用TCP / IP的NAS体系结构不同,NDAS使用类似TCP的精益协议,非常适合于高性能硬件的实现。得益于简单的NDAS架构和协议,在0.18 / spl mu / m CMOS技术中的单个4 mm / spl times / 4 mm芯片上实现的NDC在千兆位以太网上实现了55 Mbytes / s的最大吞吐量,与本地连接到主机的高性能磁盘的磁盘。

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