[130_存储业务]005_富士通存储系统Eternus_为全局环境准备的在线高速备份/恢复
原文:
ETERNUS disk storage systems provide Advanced Copy functions that enable server-less volume copying within the disk storage system unit. Used in cooperation with backup software that supports continuous system operation, these Advanced Copy functions significantly minimize the time taken for backup or recovery.
The Equivalent Copy function, Advanced Copy(EC), is used by the disk storage system to create a backup volume equivalent to the online source volume. This is done in parallel to online operations.
By this method, data backup, which traditionally takes several hours, can be performed within the disk storage system in several minutes. Then replicated data can be backed up to a tape library at anytime. Such combinations of ETERNUS disk storage systems and a tape library enables high-capacity long-term data storage in 24 x 7 environments.
In the case where an online volume is corrupted, data can be quickly recovered from the backup volumes using the One Point Copy function, Advanced Copy(OPC). This means the online service can restart immediately.
译文:
ETERNUS磁盘存储系统提供的高级拷贝特性使在磁盘存储系统内部进行数据拷贝成为可能,并且弱化了服务器在其中的作用。如果高级拷贝和支持无间断服务的备份软件并行使用,高级拷贝无疑可以很明显的缩短数据备份或数据恢复的时间。
对等拷贝,也就是高级拷贝(EC),通常是用于创建一份与在线业务数据对等的备份数据。这与在线操作是平行进行的。
通过这种方法,原本需要数个小时的数据备份,现在在磁盘内部进行只需要几分钟。对于备份数据,可以进而随时的备份到磁带存储系统里。这种ETERNUS磁盘存储系统与磁带存储系统之间的纽带关系可以维持7x24小时不间断的服务。
当在线的数据有损坏,可以通过高级拷贝的OPC方法把数据快速回复,这意味着即时发生宕机之类的问题,服务还是可以很快的被重启使用的。
下图是关于全局环境下的高级拷贝的: