系统工程(二) 3.硬盘设计 硬盘是服务器内保留的少数机械器件之一,也是提高系统可用性时要优先考虑的组件。硬盘技术涉及面很广,我们只选择几个要点来讨论。 ·存储密度 一般打开大容量硬盘时,会发现许多小盘片或者磁盘。磁盘越少,读/写头越少,故障出现的概率就越低。IBM Ultrastar XP硬盘增加了每个盘片的实密度,这样就降低了 System Engineering (b) 3 hard disk design Hard disk is retained in the server one of the few mechanical devices, but also to improve system availability to be prioritized components. Hard disk technology involves a wide range, we only select a few key points to discuss. Storage Density Generally open large-capacity hard disk, you will find many small disk or disk. The fewer disks, the fewer the read / write head, the lower the probability of failure. The IBM Ultrastar XP hard drive increases the real density of each disk, reducing it