数据中心信息系统本地磁盘保护和在线扩容技术的研究与实现  

Research and Application of Online Protection and Expansion Technology of Information System's Local Hard Disk in Data Center

作　　者：王鹏[1] WANG Peng(Luoyang Photoelectric Technology Development Center,Luoyang 47100)

机构地区：[1]洛阳光电技术发展中心,洛阳471000

出　　处：《现代计算机》2018年第5期93-95,101,共4页Modern Computer

摘　　要：某企业数据中心关键信息系统服务器本地存储由多块物理硬盘组成,一旦其中的一块硬盘出现故障,将造成业务数据丢失,给某企业的科研生产带来严重的影响。通过研究和应用磁盘阵列RAID技术,构建RAID 5或RAID 5+1磁盘组,当本地1块或2块数据盘出现故障时,可通过校验信息快速恢复数据,保证业务数据的完整性;针对关键信息系统采用传统扩容方法导致业务数据拷贝时间较长,影响业务系统连续性的问题,通过研究和利用LVM技术,将多个物理分区整合成逻辑卷组,实现可弹性调整容量的文件系统,可实现快速在线扩容,降低由于存储扩容导致业务系统停机的时间。The local storage of information system＇s severs consists of multiple hard disks. Once one hard disk break, the information systems will lose their data so that it may seriously influence the work of research and production in the enterprise. Establishes a disk array system based on technology of RAID 5 or RAID 5＋ 1, which assures that the information systems can fast restore lost data through computing of the other good disks when one or two local hard disks break. In addition, it takes a long time to complete copying data using traditionally method when information systems want to raise their size of file systems. Establishes a file system which can expand capacity online based on the LVM technology so that it can realize quickly online expansion and reduce the downtime because of expansion.

关 键 词：RAID LVM 磁盘阵列 扩容 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]