Multipath support in the device mapper [Posted February 23, 2005 by corbet] Multipath connectivity is a feature of high-end storage systems. A storage box packed with disks will be connected to multiple transport paths, any one of which can be used to submit I/O requests. A computer will be connected to more than one of these transport interconnects, and can choose among them when it has an I/O ...

phy指物理层，OSI的最底层。 一般指与外部信号接口的芯片。 以太网phy芯片 网络中最基础的部件是什么?不是交换机也不是路由器，而是小小的不起眼但又无处不在的网卡。如果在5年前，或许网卡与您无关，但在如今这网络的时代，无论是上网冲浪还是联网玩游戏，都离不开网卡，更何况，就算您不食人间烟火，多数主板上也会为您集成一块板载网卡。所以，对于想迈入网络之门的读者而言，先认识网卡，会让您在进行各种网络应用时更...

Jr and Sr infrastructure Developer/support Role ¡¤ Work on small fixes and larger projects implementing batch systems requirements ¡¤ Work with senior developers and support analysts on testing and deployment Job Requirements ¡¤ 2++ year plus IT experience ¡¤ Some C++/C#/Sybase/SQL Server knowledge would be ideal but not mandatory - willing to train up ¡¤...

phy管理接口（MDIO） 对吉比特以太网而言，串行通信总线称为管理数据输入输出 (MDIO)。该总线由IEEE通过以太网标准IEEE 802.3的若干条款加以定义。MDIO是一种简单的双线串行接口，将管理器件(如MAC控制器、微处理器)与具备管理功能的收发器(如多端口吉比特以太网收发器或 10GbE XAUI收发器)相连接，从而控制收发器并从收发器收集状态信息。可收集的信息包括链接状态、传输速度与选择、断电、低功率休眠状态、TX/RX模式选择、自动协...

系统启动时候， 网卡出现 phy reset failure错误信息，这是什么错误？

各位老师： 请问在solaris8下如何看比prtdiag ,prtconfig demsg等命令显示更详细的设备信息 。最好是具体到如显 卡，内存，光驱，cpu等单一设备信息 。

问：如何实现单片以太网微控制器？ 答：诀窍是将微控制器、以太网媒体接入控制器(MAC)和物理接口收发器(phy)整合进同一芯片，这样能去掉许多外接元器件。这种方案可使MAC和phy实现很好的匹配，同时还可减小引脚数、缩小芯片面积。单片以太网微控制器还降低了功耗，特别是在采用掉电模式的情况下。 问：以太网MAC是什么？ 答：MAC就是媒体接入控制器。以太网MAC由IEEE-802.3以太网标准定义。它实现了一个数据链路层。最新的M...

网络技术以太网

phy Automation ENGINEER -basic OS/RTOS/networking knowledge -C/C++,Object Oriented programming, Java, Perl scripting language instrumentation control and remote measurement ; GPIB DSL test standards (DSLForum, ITU) measurement equiment : DSL line simulator,noise generator, spectrum analyser, scope -PC, Windows, Excel/Access, SQL/Word -lab setup/maintenance/calibration/cabling -network setup and c...

If you are interested ,pls send cv to: [email]crystal.hu@region.net.cn[/email] JD: IT Supervisor – China Mission:  Provide day-to-day management on IT operation, drive the IT operational excellence to support business growth initiatives and ensure IT system & service availability. Key Responsibilities:  Initiate, develop, drive and manage the projects on IT service optimizatio...

If you are interested ,pls send cv to: [email]crystal.hu@region.net.cn[/email] Title: Project Manager - infrastructure Transformation Role:  Oversee the project plan in transforming current infrastructure in Greater China into centralized data center in Singapore, with the objective of providing high availability compute and network infrastructure to support current and future business n...