服务器作为企业信息化至关核心计算机,运行着企业关键业务。服务器应用了许多台式计算机所没有的特殊技术,例如服务器内存,服务器内存也是内存,它与我们平常在电脑城所见的普通内存在外观和结构上没有什么实质性的区别。
如今常用的服务器内存主要有SDRAM和DDR二类,还有另一种RAMBUS内存,是一种高性能、芯片对芯片接口技术的新一代存储产品。
那么,服务器内存与普通PC机上的内存有什么区别呢?
它们从外观上并没有什么区别,但是,大家也不用担心,普通PC机上的内存在服务器上一般是不可用的,这是因为服务器内存与普通PC机上的内存最大的区别就是服务器内存在内存上引入了一些新的技术。
接下来,小编就为大家具体介绍一下服务器内存所引入的新技术:
1、ECC内存:这种内存我们经常在服务器上面看到,是服务器内存最基本一项技术;
2、Register:寄存器或目录寄存器,在内存上的作用我们可以把它理解成书的目录,有了它,当内存接到读写指令时,会先检索此目录,然后再进行读写操作,这将大大提高服务器内存工作效率;
3、Chipkill内存技术:在ECC技术基础上的改进,采用的只需普通的内存SD内存、DDR内存,Chipkill内存控制器所提供的存储保护在概念上和具有校验功能的磁盘阵列类似;
4、内存镜像(Memory Mirroring)技术:它的工作原理与硬盘的热备份类似,为了确保当某个DIMM存储芯片失效的时候,内存保护技术能够自动利用备用的比特位自动找回数据,从而保证服务器的平稳运行;
5、内存保护(Memory ProteXion)技术:IBM公司的一种高级内存技术就是内存镜像技术,内存镜像技术很像磁盘镜像技术,就是将数据同时写入到两个独立的内存卡中(每个内存卡的配置都是一样的)
现在你知道服务器的内存和普通PC机的内存的区别了吗?
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