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公开(公告)号:US20090138657A1
公开(公告)日:2009-05-28
申请号:US11945132
申请日:2007-11-26
申请人: Jian-Zhong WANG , Tom CHEN , Win-Harn LIU
发明人: Jian-Zhong WANG , Tom CHEN , Win-Harn LIU
CPC分类号: G06F3/0613 , G06F3/065 , G06F3/0689 , G06F11/1456 , G06F2201/84
摘要: A data backup system for a logical volume manager (LVM) and a method thereof, capable of realizing data backup in the LVM having a battery backed cache memory (BBCM). The data backup system includes a physical storage device, a BBCM, an LVM, and a data backup function. The physical storage device is used to store data of the LVM. The BBCM is used to provide a plurality of index regions and a plurality of data regions. The LVM is used to manage data save position of the physical storage device. The data backup function is used to look up whether the BBCM saves the data to be backed up by the logical volume. If the BBCM has the data, the BBCM reads out the data to be backed up, and writes the data into a snapshot volume (SV).
摘要翻译: 一种用于逻辑卷管理器(LVM)的数据备份系统及其方法,其能够在具有电池备份的高速缓冲存储器(BBCM)的LVM中实现数据备份。 数据备份系统包括物理存储设备,BBCM,LVM和数据备份功能。 物理存储设备用于存储LVM的数据。 BBCM用于提供多个索引区域和多个数据区域。 LVM用于管理物理存储设备的数据保存位置。 数据备份功能用于查找BBCM是否保存要由逻辑卷备份的数据。 如果BBCM具有数据,则BBCM读取要备份的数据,并将数据写入快照卷(SV)。