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一、为什么要发展PC服务器? 常常有人问,PC服务器到底与台式机有什么区别?作为与PC 兼容的PC服务器,粗看起来确实会让人觉得与一台高档的台式机 相差无几,但实际上,由于针对不同的应用角色而设计,它们的区 别主要在可靠性、扩充性和高速I/O能力方面;首先,在PC服务 器的设计上,充分考虑了对可靠性的要求,PC服务器内往往有一 些监控工具(如监控服务器内的电压、温度等等),内存一般至少 使用奇偶校验内存,甚至使用能够自动纠错的内存(ECC内存), 硬盘一般也采用可靠性比较高的型号。另外,PC服务器比台式机 要求有更大的扩展性,所以PC服务器一般都是塔式机箱,能够提 供的设备安装托架比台式机要多,一般有6个左右的硬盘托架,而 台式机只有2个左右;由于作为信息共享的中心服务器往往连接大 容量的硬盘,并且需要频繁地进行硬盘的读写,所以服务器一般使 用高速的SCSI接口并且往往把SCSI控制器集成在主板上,而台式机 在盘控方面一般采用IDE接口或EIDE接口。
First, why develop PC server? Often asked, PC server in the end with the desktop What is the difference? As PC-compatible PC server, the rough does seem to make people think with a high-end desktop is almost the same, but the actual On the other hand, they are designed for different application roles, and their differences are mainly in terms of reliability, scalability and high-speed I / O capabilities. First, PC servers are designed with reliability considerations in mind. PC servers There are often some monitoring tools (such as monitoring server voltage, temperature, etc.), the memory generally use at least parity memory, or even use to automatically correct the memory (ECC memory), the hard drive is generally used in the more reliable models . In addition, PC servers require more scalability than desktop PCs, so PC servers are generally tower chassis, can provide more than the desktop computer mounting bracket, usually about 6 hard drive bays, and desktop Only about 2 machines; as the central server for information sharing are often connected to high-capacity hard disk, and the need for frequent hard disk read and write, so the server generally uses high-speed SCSI interface and often the SCSI controller integrated in the motherboard, and Desktop in the disk control generally use the IDE interface or EIDE interface.