redundancy of data meaning in Chinese

数据冗余性

So , more and more distributed applications adopt redundant servers : on one hand , the system availability could be improved through adding the redundancy of data and computation ; on the other hand , user requests are processed on several servers in parallel , so the system performance could be advanced by this means
为此，许多分布式应用采用了冗余服务技术：一方面，通过增加数据和计算的冗余度，提高了系统的可用性；另一方面，多个服务器并行地响应用户请求，提高了系统的性能。