公开(公告)号：US20130179655A1

公开(公告)日：2013-07-11

申请号：US13777329

申请日：2013-02-26

Applicant: VMware, Inc.

Inventor： Ali MASHITIZADEH ,  Min CAI ,  Emre CELEBI

IPC: G06F3/06

CPC classification number: G06F17/30289 ,  G06F3/0617 ,  G06F3/0647 ,  G06F3/0664 ,  G06F3/0683 ,  G06F9/45558 ,  G06F2009/4557

Abstract: Techniques for migrating persistent data between and across data stores are implemented using monitoring methods. The method includes classifying frequently updated blocks of persistent data to distinguish those blocks from less frequently updated blocks of persistent data. The less frequently updated blocks are copied from the source data store to the destination data store, such that persistent data is copied to the destination data store in the absence of the persistent data of the frequently updated blocks. The method further includes identifying a modified set of the less frequently updated blocks that are modified during the copying. The modified set of less frequently updated blocks is copied from the source data store to the destination data store, without copying the frequently updated blocks. It is then determined whether to copy the frequently updated blocks of persistent data from the source data store to the destination data store.

Abstract translation: 使用监控方法实现在数据存储之间和之间迁移持久数据的技术。 该方法包括对经常更新的持久数据块进行分类，以将这些块与较不频繁更新的持久数据块区分开。 较少频繁更新的块从源数据存储复制到目的地数据存储器，使得在不存在经常更新的块的持久数据的情况下，持久数据被复制到目的地数据存储。 该方法还包括识别在复制期间被修改的较不频繁更新的块的修改集合。 经修改的较不频繁更新的块的集合从源数据存储复制到目的地数据存储，而不复制频繁更新的块。 然后确定是否将频繁更新的持久数据块从源数据存储复制到目的地数据存储。