Even though it is simple and it supports any physical device storage type, data migration/replication across systems and host instances synchronization across organization is not possible.
尽管它很简单而且支持任何物理设备存储类型，但是不可能实现跨系统数据迁移/复制和跨组织宿主实例同步。
Another key feature of cloud storage is geographic distribution of data (geographic scalability), allowing the data to be nearest the users over a set of cloud storage data centers (via migration).
云存储的另一个关键特性是数据的地理分布(地理可扩展性)，支持经由一组云存储数据中心(通过迁移)使数据最接近于用户。
Most often, the goal of this migration is to offload less frequently-used data to less expensive external devices for long term storage.
在很多时候，此类移植的目标都是将不太常用的数据转储到更便宜的外部设备上进行长期存储。
While RAID at the basic level provides this functionality, the term storage virtualization typically includes additional concepts such as data migration and caching.
尽管RAID在基础的层面上提供了这一功能，但存储虚拟这一术语典型地包括了更多附加的概念，比如数据迁移以及缓存。
Migration - Data can be easily migrated between storage locations without interrupting live access to the virtual partition with most technologies.
迁移——数据可于存储位置间轻易的迁移，并且不会影响以多种方式对虚拟分区的实时访问。
Load migration algorithm is used to achieve both load balance and storage space balance on each node, which can form a reasonable distribution of data.
采用负载迁移算法，使各节点的负载和存储空间达到均衡，以形成合理的数据分布。
Load migration algorithm is used to achieve both load balance and storage space balance on each node, which can form a reasonable distribution of data.
采用负载迁移算法，使各节点的负载和存储空间达到均衡，以形成合理的数据分布。
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