应个人网络存储应用的需要，研究和开发网络虚拟存储系统。
To deal with the need of the personal network storage application, research and develop the network virtual storage system.
在虚拟存储系统中，实际存储器的大小与虚拟存储器的大小之比。
In virtual storage systems, the ratio of the size of real storage to the size of virtual storage.
在集群环境下，将分布式的外设构成一种动态虚拟存储系统能够较好地解决这个问题。
To solve the problem, it is a good idea to construct the distributed disks in cluster system into a DVDA(dynamic virtual parallel disk array).
另外，基于此技术的虚拟存储系统，没有改变用户的使用习惯，所以大大方便了用户的使用。
In addition, the virtual storage system based on this technology is easy to use because it has not change the habits of the users.
在虚拟存储系统中，一个固定长度的连续虚拟地址块，在分页操作过程中它作为一个单位在内存和磁盘之间来回复制。
In a virtual storage system, a fixed-length block of contiguous virtual addresses copied as a unit from memory to disk and back during paging operations.
访问存储系统的程序会与虚拟机系统进行通讯，而不是将数据直接存储到硬盘上。
The applications that access the storage system interface with the virtual system, rather than storing data to the disks directly.
虽然存储虚拟化曾经是高端存储系统的独特功能，但是现在它是Linux的标准功能。
Storage virtualization was once a feature unique to high-end storage systems, but it is now a standard feature of Linux.
实验结果表明，存储系统中的热点区域一般是比较稳定的，而实现了设备间的数据动态调整后，对虚拟盘的平均访问响应时间可缩短23%。
The experiments show that the hot regions in the storage system are quite steady, and after the dynamic adjusting between devices, the average response time of virtual disks can be reduced by 23%.
而未来网络存储系统必然是智能的、分布式的、异构的、虚拟化的存储系统，能够进行自我管理、自我优化和自我恢复。
The network storage system in future should be an intelligent, distributed, virtual system, which can be managed and recovered and optimized itself.
本文主要研究分布式虚拟环境中与访问代理相关的技术问题，以及武器装备信息存储系统的设计方法与实现技术。
In this thesis, the technology about Access broker is studied and the Weapon Information Storage System is designed and implemented.
SAN的虚拟化是存储系统的发展趋势，它在文件系统层实现。
Currently the main storage system technology is SAN Virtualization and its implementation is in the file system layer.
在虚拟网络存储系统中通常包含各种异构的存储设备节点…
There are usually lots of heterogeneous storage nodes in the virtual network storage system.
在虚拟网络存储系统中通常包含各种异构的存储设备节点…
There are usually lots of heterogeneous storage nodes in the virtual network storage system.
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