With PCI address mapping mechanism, this research realized the inter-access between host and backup based on CPCI bus and the coherence between host and backup is thus realized.

借助pci地址映射机制，本课题基于CPCI总线实现了主备间的内存互访，并依此实现了主备间的一致性。

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At the same time, the implementation of coherence between host and backup will not occupy the bandwidth of the networks, the capacity for HLR to receive and dispatch external message is also raised.

同时，由于主备一致性的实现操作不再占用网络带宽，提高了HLR收发外部消息能力。

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GRANT: Provides any user on any host the ability to access the db2 backup images and log files associated with databases generated on the node issuing the GRANT option.

GRANT：为任意主机上的任意用户提供访问db2备份镜像和日志文件的能力，这些镜像和日志文件与发出GRANT选项的节点上生成的数据库有关。

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The high growth of digital content is driving the need for high capacity storage to aggregate, host, distribute, manage, backup and use digital content.

FORBES: Seagate's Growth Rides These Storage Business Trends